irid von Bernewitz 
 
 T N 
 
 560 
 A12 
 U53 
 MATH 
 
 RATURE 
 1921 
 
 UC-NRLF 
 
 3 1SS 
 
 FOSTER BAIN, DIRECTOR 
 
 s ep 
 
 r ,.. 
 
 i o * 
 
 Property ~ 
 
 abor. R- 
 aibm^ \ 
 
 BIBLIOGRAPHY 
 OF 
 
 :RATURE ON SAMPLING 
 
 TO JULY, 1921 
 
 COMPILED BY 
 
 D M. VON BERNEWITZ 
 
 WASHINGTON. O. C. 
 
t 
 
 
 
 
1 
 
 A/3. US 3 Property of the 1 " * 
 
 H.-S.A:. so. ass Wm , Statistical Laboratorv 
 
 ? n l ~u i c, JD T4T 
 
 
 ch 3922. . , . 
 
 *uv Dept. of Mathematics 
 
 REPORTS OF IM^STIGATICNS University of Caiifor 
 
 BUREAU OF MINES - - DEPARTMENT OF THE INTERIOR 
 
 BIBLIOGRAPHY OF LITERATURE ON SAMPLING. 
 (Compiled "by W.J. Sharwood and M.W. von Bernewitz) 
 
 So far as is known, tnere is no complete bibliography on sampling, 
 therefore, this one should be of value. In it are nearly eleven hundred refer 
 ences, some dating back 30 years, on sarrpling at mines, mills, smelters, power 
 plants, pumping stations and refineries. For convenience, there are included a 
 :ew references to methods for sampling such materials as leather beltin fc in mills, 
 salt impregnated soils, and mine waters. All the important technical journals, - 
 including some in foreign countries- and engineering society publications, also 
 mining and metallurgical text -books, have been studied for anything concerning 
 sampling, and while it is not claimed that every important reference has been 
 listed, the bibliography is fairly complete. 
 
 The arrangement is alphabetical by authors 1 names, and the references 
 are numbered serially in the order that they appear in the bibliography. Anon 
 ymous references are listed under the name of the journal in which they appear, 
 and are numbered like the references bearing an author s name. 
 
 Patents are grouped in their numerical order, without index numbers. 
 
 Under the heading, "U.S. Bureau of Mines Publications", are listed all 
 publications of the bureau that deal with sampling. While the serial number is 
 omitted, these same references, of course, have serial numbers where they appear 
 in the list arranged alphabetically by authors. 
 
 Acknowledgement is made to Miss Florence Wilkie and to Miss H. Shelby 
 Holbrook, who assisted in revising the manuscript. 
 
 CONTENTS 
 -- Page 
 
 "Bi blio2r ! Yo v y (eyceT>t patents) ----------------- 2 
 
 "Patents --------------------------------------- 7 2 
 
 U. S, STJPFBT.T rp nfjTTF^ publications 
 containing notes on sampling 
 
 Subject in^3* --------------------------- ...... 83 
 
JIBLIOORAFHT. 
 
 1. Abrams, E..JT. Core-drills in the petroleum industry. Eng. and Min. -Tour ; , 
 
 vol. Ill, 1921, p. 631. This ty^e of drill gives fc oea cores aud 
 sables. 
 
 2. Addicks, Lawrence. Chroi-e -;lent of the U.S. Metals Refinin fe Co.. Mineral 
 
 Industry, vol. 15, ]9u6, p. 302; ^r & . and i/iin. Joiir., PP- 
 
 10C1 - 1006. Describes sampling of carloads of O.Q and of j J J, tfopper. 
 
 3. _ _ Copper from secondary material. Chem. and Met. E.i f .,., vol. 
 
 22, 1920, p. 119. Hov? to sample junk metals. 
 
 4. Akerbolm, K.A. Sampling copper cres at Falu,-. Teknisk tidskrift, vol. 2*, 
 
 p. 10. 
 
 5. Alaska Juneau Geld fining Co. Reports for 1917 to 1920 give number of 
 
 samples taken, average value, how.ts.lcen, and comparison with mill returns; 
 10,400 samples taken in 8 years to end of 1920. 
 
 6. Aldorson, M.W. Sampling with churn-drill. Min. and Sci , Press, vol. 92, 
 
 1906, p. 327. Surface deposit was sampled by drill. Samples were a 
 in a can set in tne water-box, A sample was taken for each foot of pos 
 sible ere. 
 
 7. Allen, A.V/. An automatic sampler, En fc . and Min. Jour,, vol. 104, 1917, 
 
 P. 66. Describes pulp sampler. 
 
 7. (a) Handbook of ore-dressing. 1st ed. 1920, p. 242. Weights to be taken in 
 sampling ores of various grades, sampling in Dills at mines ana custom 
 works, coning and quartering, vezin and tailing samplers, dryin fe 
 
 7. (b) Recovery of Chilean nitrate. 1st ed. 1921, jj. 4d, Difficulty in 
 
 Caliche and rssJdae is briefly discussed, but overcome by a new process, 
 pp. VII (vrefaco), 3, 17, 20, 25, 32, 
 
 6. __ The Chr.onicaiijota enterprise. Min. and Sci. Press, vol. 122, 
 1931, p. 779. .2uvlin fc and te^ir^ Lhe Chile Copper Go s ore-bcay. Vol. 
 123, 1921, p, 117, Sampling residue from the j.J*chi ng vats. 
 
 9. Allen, G L. Flotation of oxidised ores of lead, bureau of Mines circular, 
 
 May, 1916. Abtr. in Chen., and Mot . En b ., vol. 20, 1919, p, 172. How 
 sheet shows position of sampler. 
 
 10. Allen, I.C. Purchase of fuel-oil for the Government, with directions for 
 
 sampling oil ar.d natarc-.l gas. Bur-seu of Mines Tor^uv.cal Paper 3. 1^11, 
 pp. 16. Methods of sampling wakens, large tanks, dr^ms, and gas welis. 
 
 11. Ambler, J, 0. S -.acli losses at the Ari7.cna Copper Go s smelter. Chem- and 
 
 Met. Eng,, vol. 22, 1920, p. 305. Method of sampling flue gases, sncwn 
 on plan. 
 
 -2- 
 
12. Ambrose, A.V/. Oi If i eld watar problems . En-; . and Min. Jour., vol. 109, 
 
 1920, p. 979. Collecting representative sau v les of water fron oil-wells. 
 
 13. ^ _ Petroleum production engineer. Sn^. ana Min. Jour., vol. 
 
 109, 1920, p. 666, Ar..ong his daily duties, the engineer snould visit 
 drilling wells for collection of sai-ples of formations. 
 
 14. _ _ Underground conditions in oil fields. Bureau of Mines 
 
 Bull. 195, Petroleum Technology 62, 1921. Sa&plin t drill-cores, sample 
 containers, exa^-ination of samples, 
 
 15. American Concrete Institute. Specifications for concrete stone and cement. 
 
 Proc. vol. XIII, 1917, pp. 465 and 474. How samples shoula be taken. 
 
 16. American Perfumer, vol. 15, 1920, p. co Sanplin^ essential oils by brokers 
 
 in London. 
 
 17. American Society for Testing Materials. Tentative method for sampling and 
 
 analysis of coal. Proc., vol. 14, pt, 1, 1*1*, pp, 409 - 452. The second 
 part of report by the Coux dttee, 
 
 18. _ __ . Tentative methods of laboratory 
 
 sampling, and analysis of coke. Proc., vol. 16, 1916, part 1, pp. 551 - 555 
 vol. 17, 1917, part 1, pp. 813 - 825, 
 
 19. __ __ , Tentative methods for laooratory 
 
 sampling and analysis of coal. Year Book, 1915, pp, 596 - 624. Third 
 Section of report by the Committee. 
 
 20. _______ _ . Tentative aethods for the sampling 
 
 and analysis of creosote oil. Proc., vol. 16, 1*16, part 1, pp. 564 - 
 565. Gives Standard for continuous drip sables, gravity samples, and 
 stcrage tank samples. 
 
 20. (a) Anaorson, B.G. Mine sampling methods at Tyrone, N. Mex., En b , and Min. 
 Jour., vol. 112, 1921, p. 531. Specialized routine work on the disseminat 
 ed copper deposit of the Chino Company, showing ..any forums used ana. reacrds 
 kept. Testing keeps close supervision over the grade of ore and on j^ro feres 
 of development . 
 
 21. Anderson, Glen. Notes on uine sampling. Eng. and Min. Jour,, vol. 91, 
 
 pp. 466 - 469; consent , p. 1143. Describes methods and tools for under 
 ground sampling, also preparation of sacvles for assay, and guards against 
 salting. 
 
 22. Andersen, R.J. and Copps, J.H. Gas atmospheres in aluminum- alloy 
 
 furnaces. Chen, and Met. Er%., vols. 24 ana 25, 1921, p. 1020 and .54. 
 Gas samples were taken frcui furnaces and analyzed. 
 
 23. Annual reports of Transvaal Chamber of Mines. Dust sauplin* departnent s 
 
 duties, p. 71 (1916), p. *6 (1*17); py, -4, 73, 103, 214, 21^ (1916). As 
 
 many as 36,000 Samples were collected in a year, 
 
 -3- 
 
24. Argall, Philip. Machine sarLplirifc,. n^ and Min. Jour., vol. 06, 1^08, p. 
 291. Discusses intermittent ore streaus and essentials cf sailing. 
 
 25. . Mill - -tests V, hand-sailing, Min. and Sci i , "Press, vol. 
 
 115, 1917, p. 673. Criticizes- article by Morton Webber, 
 
 26. _ i _. Sa..^.ling and dry crushing in Colorado. Trtdis. Inst. M ana 
 
 M, vol. X> 1Q1,. p; 22<t. "A review of ^ei-hods on Oriople Creek gold-tell- 
 uride ore, including- redticirig the lots received for Ireat^.ent , cutting the 
 sample, sai-pling rich ere, taxing, encL e.ss^ying. Disc-ussion by Alfred 
 Ja:. ies and othqrs. 
 
 26. (a) Sampling and estimation cf ore. En b , and Min. Jour,, yols. 
 
 75 and 76, 1S03 pp. 260, 889, 115, 729.- .Discusses ore developed places, for 
 sampling size of Sc^i.plss, checking, a. .re-sai^pling, pockety deposits, and a 
 description of the Jones 
 
 27, 
 
 Sampling ore. Min, and Sci . Press, vol. 9<*, 1907, p. 
 
 Gives reasons for sampling ore at the till. 
 
 28. Arizona Mining Journal. Assay methods cf Copper Queen Brarich,. Phel^s 
 Dodge Corp. - vol. IV, -No; 9, 1921, p. 4. Handling and assaying over 500 
 samples daily. 
 
 29. Asoeek, J. Probenahu.e bei silberhaltige;.: Werkblei in Blocken. Cheu. Zeit., 
 
 JaJir. 29, 1905, pp. .78 -. 7S, pt. i; Describes sauipling of arr,entif ercus- 
 lead b&rs, 
 
 30. Ashcroft, J.V, . Sandier used in connection with flotation process at. Kyloe, 
 
 N.S. Wales Trans. Innt . Min, ana Met:., vol. 22, 1912 - i3, pp. 3 - 25; 
 Minos and Methods, vol. 4, Dec. 1912, p. yl . 
 
 31. Atwood, Melville. Si^le working test for determining the quantity cf gold. 
 
 uiecbani caliy combined with auriferous vein-u.atter . Fifth Annual Report of 
 State. Mineralogist of California, 1385, p. 78. Abstract in Min. and Sci. 
 Press, vol. 60, 1390, p. 281. Describes method of sailing c.uriferous 
 qus.rtz. ; . 
 
 32. Aupperls, J.A. Methoa of sampling and analysis of tin, terne, and lead 
 
 coated sheets. Prcc. American Soc. for Testing -. Materials. Vol. 14, 
 pt. 1, pp, 162 - 171. 
 
 33 
 
 . Austin, L.S. CoB^rcial sampling cf minerals. , En b . and Min. Jour., vol. 3*t, 
 2, pp. 45, 70, lOa-109,- 145-149. Describes quartering and split-shcvdl. .. 
 methods and iuachinery for crushing. 
 
 rj / 
 
 . , 
 
 r - . _ Fire assay cf gold, silver, and lead in ores and metallurgical 
 products. 1st ed. lbC7, 86 pp. Discusses saj\plin b and ; preparation of tne 
 ore icr a&say (pp. 12-14); 
 
 ~ --- - Machine sampling, Eng. and Min. Jour., vol. 86, 1*06, p. .238. 
 Dl8CUfis article by J.A. Church on ore sampling, by machine. En & , and Min. 
 Jour. vol. 66, 1905, p 113. . ... 
 
( a ) _____ _ _. Metallurgy of cocmon metals, 3rd ed. 1913. Contains 
 
 notes on sampling works, and how to x sample ores, and u.3t^ls, 
 
 _ : _ _. Metallurgy of Copper in 1917 ; , . M in, Ind. vol. ^6, 
 Ibl7, x .,p. 179-205. Describes sampling cf wet concentrates, pp. 1 133-134. 
 
 Jtfead of .uniform methods of saiLlin Lake Superior 
 
 iron ore, Trans, Aiii. Inst. Min. Eru. vol. 50, lyiu; pp. 215-230. Dis 
 cussion of article by A.B. Murray. 
 
 Recent Si^eltin^ practice in Colorado, Mineral Ind. 
 
 vol. 6, 1697, p, 437, Describes sampling of copper pig at shelters. 
 
 Sampling Lake iron ores. Prcc, "Lake Superior Min. 
 
 Inst., vol. 13, 1906, pp 225-230. Discusses principles aha 
 
 0* *- :.. ,. . 7/a shoe plant of the Anaconda coup~ny, Montana. Trans 
 
 Am. Inst. .Wan. En , vol. 37, 1906, pp., 431-435, Sampling iui 11 described 
 with flow- sheet. 
 
 0. (a) Austin, ,1V. L, Mine splint,. Eng. and,. . Ml n. Jour . , vol. 76, 1903, p. 
 
 45. Discussion of R.A-, Parker on mixing samples on canvas. 
 
 1, Bailar, J.C. Sampling products of concentrating and "slitting tables, V/est . 
 
 ; Ghent, and Met.., vol. 1, 1905.,. p. 135;. , Min. and Sci. Press, vol. 91, 1*05, 
 p, 294; Jour * Che^.. Met. and Min.. Sec. S. Africa., vc.l. 6, 1905-06, -pp. 
 175, Describes a simple teeter-box sampler and another with a ijutilated 
 gear-wheel driving a pinion intermittently; .compared hand ana automatic 
 
 2. Bailey, E.G. Accuracy -in sampling ;coal.- Jour, Ind. and En &; Chen., vcl. 1, 
 1909, pp, 161-178. Discuss influence of size-weight ratio probability of 
 error in 
 
 5 . Sampling, coal and coke. Mines and Minerals, vol. 31, 1910- 
 
 11, pp, 89-i93,; 190-192, 209. Shows various patterns for takinr sa^jples 
 from cars with snovel. Illustrates a riffle sav-pler of the Jones type. 
 
 * . . 
 
 Bain, H.Foster. Metallurgical probleius. of * the Hand, .Mih, and Sci. Press 
 vol. 114, 1917, pp. 227-235. Discusses Dill 
 
 5. 3all, L.C, Gray 1 s Luck geld -mine at on,e udle, Nanan^o, Queensland, -Queens 
 
 land Gov t. Min. Jour., vcl, 16, 1915, pp. 167-171. Describes sampling 
 method used and giv.es .sampled grouped for analysis. 
 
 6, Bancroft, G.J. MLn, and Sci. Prsss, vol.. 92, 1906, pp. 365. Describes a 
 
 hand stanip for preparing mine sa. 
 
 7. _ . Notes on utne-aapyo.ling. Min. and Sci, Press, vol. 76, 1699, 
 p. 636. Gives principles of sa^plin^ ore in mines and describes the foot- 
 ounce method of valuation. , . -,- 
 
 3, Bancroft, G.J. Saniplin fc of ore in a udne. En^ , and Min, Jour., vol. 75, 
 1903, p, 323. Systeriiatic sampling has its limitations ; examples given, 
 
 . -5- 
 
4:7 _ Story of the Independence alleged salting case, ^ 
 Sci. Press, vol. 9G-?1, 1905, .pp. 166-167. Describes .Lethod of sa^l 
 the dine involved and gives the decision on the case. 
 
 50. Barbour, P.E. Doubles Copper Shelter at Fundicion. Mex. Eng. and Min. 
 
 Journ., vol. 65, 1*06, pp. 303-305. Describes a sailer for oar-load* of 
 
 .o re u-ount ed en a DO t o r 1 1 ruck , 
 
 51. _ . Gcldfield consolidated 600-ton mill. En^. and Min. Jour., 
 
 vol, 36, 190b, ;<p. ; 467-47ft, Describes sau\.iin fe mill * 
 
 52. ___ _. Hc.:o-t:aae automatic ssu-pler. En*, and Mm. Jour., vol, 93, 
 
 " 1*14, p. 7o6. Describes Sampler constructed: out of u^terial on hana and 
 designed to cut a narrow ore streau frci.: side "t- side. 
 
 53. Bardill, J.O. Bardill sapling r^acMine. "Enj,.. and Min. Jour., vol. 100, 
 
 1915, pp. 603-804. Describes Machine de si 6 ned for su-ipling we t ana sticky 
 concentrates. 
 
 54. Bassett, R.H. - New uethcd of c-aking -sieve- tests. Iron Trale Rev . , vol. 57, 
 
 115, pp. 230, 242b. Describes method of taking Scoop saaples of stock 
 piles at Mesabi -range*. 
 
 55. Bateuan, G.C. Notes on Une sair^llnt. Proc, Can . Min . Itist., vol. .16, 
 
 lc/13. Abstr, in Ens,, -and Min.- Jour,, vol. ^5, 1913, pp. 513-516. Di s- 
 cus ses difficulties in samplin b and gives efficient methods . Paper 
 presented at the Ottawa meeting of C an. Min. Inst . 
 
 56. Bauer, 0. and Deiss, E. Sampling and cheaical analysis of iron and steel. 
 
 1915, 373. prp. English translation by He.Te and Williuas. 
 
 57. Bell, J.M. The flsihi goli-fiela, New Zealand . Trans. Aust . J.M.E., vol. 
 
 15 (2), 1911, p. 574, Flow-sheet shews position of sampler in mill. 
 
 56. Bender, 0. Stua-ium ueber das Prcbene.an.en von 2r?en uit Maschinen. Zeit, 
 fur anger. Chec.ie, vol, 24, 1911, p L ; / 1164-1166. (lAechaniCtil sampling. 
 of ores. Translation, Mines and Minerals, vol. 32, 1911-12, pp. 735-737) 
 Describes various American Eiacnines, 
 
 5b. Bell, Robert N. The I.X.L. Copper prospect. Eng. ana Min. Jour., vol. 
 103, 1919, p. 400, Sailing low- grade chalcopyrite. 
 
 60. Bennetts, B.H. Some nctes-<oh SQiUplin^,. Enj, , and Min. Jour., vol, 68, 
 
 p, 273. Where ere is i^oved by aerial tra&. suggests tripping every 10th 
 car into a special bin. 
 
 61. "Bentley, Charles, Sampling and analyzing coal. Pahasapa Quarterly, S. Dak 
 
 Sen. of Mines, vol. 8, 1919, p. 55. Brief description. 
 
 62. Bertrause, L. Analysis cf commercial zinc. AJ;. chei;,. anal, vol. 23, 191o, 
 
 pp. 161 and 131; sampling zinc slabs by drilling or sawing. 
 
 -6- 
 
63, Jinns, E.T. V, -at er- Cooled sailing tube. Power,, vol. ^3, 1*16, p. 303, 
 
 Describes tube for hi ^h- temperature gases. 
 
 64. Biackett, C.E. Wetr.llurgy at Golden Hor<3e-Sn&-3, Western Australia. Mon. 
 
 Jour. Chamber of tflres, Dec. 1919. Abstr. in Mm. Mag., vol, 22, .1^20, 
 p. 312, Sapling ^cld bars. 
 
 65. Blyth, W,B, Preparation cf sine sables for assay. Min ana Eng, 
 
 vol. 37, 1^12, PW, 613-61<r. Jour, Chamber of wines of Western Australia, 
 July ^51 , 1912. Discusses relation of size of ore sampled ana amount of 
 taken. 
 
 66. Boalich, E.S, Marketing the fine prospect. En,.,, and Min, Jour., vol. 107, 
 
 119, p. 501. whsn attempting to sell a ^respect, tue owner should be acle 
 to show an assay ^p where samples cane fro.u. 
 
 67, Bock, A. Segregation of .etcvls in alloys ana its ci.use, Ch^n. Zeit,, vcl. 
 
 2b, 19C5, pp. 1199-1201; Jour. Soc. c he^. Ind., vcl. 24, 1905, pp. 1236- 
 1237. Describes saLplmg ana. assaying of silver ingcts. 
 
 60. Boericke, \7..?, Sac.pl ing cnurn-drill holes. Em,, and Min. Jour,, vol. 
 
 1S20, p. 66, When in ere, runs are not over 3 ft. Before resuming drill 
 ing, the hole should be cleaned out so as not to salt the next run. 
 
 The Crahall tailing plant, Eng, ana Min. Jour., vol. Ill, 
 
 ._ 
 1521, . 065. Sa^plin^ 200,000 .tons of 1.75^ zinc tailing. 
 
 70. Boericke, vV.-p".. and Garnett, T.H, Wisconsin zinc district. Bull. 152, Aug. 
 
 ISli*, A.^.M.&M.E. p, 1235, Accurate saupling not practised, 
 
 71. Eorcherdt ,. W.O. The Borcherat auto.iatic saapler for sand ana sline. Eng. 
 
 and Min, Jour., vol. 91, I -^ll, pp, 455-457. Describes the apparatus.. 
 
 72. Bosler, L,C. Autoitatic sampling of coal. Power, Nov. 3, 1914. Abstr. in 
 
 Coal age, vol. 8, I9J.5, p.4.2o. Many large power plants use grab samples, 
 but the Phila. Rapid Transit Co. uses a nachine to sample all coal re 
 ceived, 
 
 73. Botsford, R.L, Dia^ond-arill saciplinf;. Eng, and Min. Jour., vcl. 95, 1913, 
 
 pp. 1S-20, Gives sources of terror. 
 
 74. Bowen, H.P. Handling sJudge fron divamond- drill holes. Eng. and Min. Jonr., 
 
 vol. 95, 1913, p. ".289., Lov.cribsri saving sludge for samples by parsing 
 the water from the :1 "ill- hole vhrc^h coarse woven jute or sacks ho], a open 
 by a cylinder of coarse copper screen. 
 
 75. Boyd, J, Saapling d-sst in airio eir. Report to Transvaal Chamber cf Mines. 
 
 Abstr, in En fe . ana M\n. Jc-ar . , x-1. X07, 1919, p. 395, An air section 
 pu^ip is used, ar.d 1, ho q -ic .nlity < -aunt i-s arrivca at by passing the air 
 sample through a tiros containing sugar, which catches the dust, 
 
 76. Bracket t, F.W. A puDp-strcam sailer. Eng. and iVaru Jour., vol. 97, 1914, 
 
 p. 1017, Describes the EliuDre rotating pulp sampler. 
 
 -7- 
 
77, Bradford, Wagar. Stope-b^x sa^pli;;.*,. J.ur. Chet~. iv-3t. and Min. Soc. S. 
 
 Africa, vol. 6, 1 05-06, p*. 103-10 J, 2<;4-225, 339-341. Abstr. J?ns. ana 
 Win, Jour., vol* 71, 1906, p. 1170. Describes ana criticizes stcpe-box 
 sampling, as practised, on the kand. 
 
 73. Bradley, 7/.W. Quicksilver deposits of California. .Bull. 76, State Mining 
 Bureau. Describes sailing, and testing of cinnabar. 
 
 7^. Bretherton, S.S. Automatic ore sampler. Min. and Sci. Press, vol, r7, !*( 
 321-322 Advocates hand sampling in custom- sai^ol-.n- as core accurate, bui 
 suggests a combination hana and macnfne sacpling. 
 
 SO. _ . Hints to ere shippers. Proc. ^ui. Min. Cong., 1310, pp. * 
 265; Min. and Sci. Press, vol. 101, 1*10, pp. 530-532. Points out diffi 
 culty of takin^ moisture samples. 
 
 . Sampling custcu ores. Min. and Sci. Press, vol. 67, ls>0i 
 
 pp. 356 -357. Illustrates a rotating bucket sampler, 
 
 8.2. Briigman, H. L, A mixer and divider for ore samples, and Si^all sainplin b 
 machine. Eng. and Min. Jour., vol. 53, 15^2, p. 275. A acre accurate, 
 convenient and a faster ...ethod than with oil-cloth and spatula, 
 
 New system of ore sampling. Trans. Am, Inst. Min. Eng,, 
 
 vol, 52, 1391, p. 701; Iron Age, vol. 5O, 18*2, p. 770, 5)iscussc;s 
 
 by tiachins, and describes three types of OTA chines ana a raxer ana diviaei 
 
 84. Erinsinaae, R.B. Mining ana smelting near Monterray, Mexico. Min, and Sci, 
 Press, vol. lid, 1919, p, 741. Sampling ore before salting. 
 
 5* _ _ . Mining ana. scelting near Matchuala, Mexico. Min. and Sci, 
 Press, vol. 120, lb20, p, 85. Sampling copper- silver ores in tne dine ar 
 smelter. 
 
 6- __ . Mining near San Luis Potosi, Mexico. Min and Sci. Press. 
 . 123, lb-21, p. 61 Samplim, ore at the Metalilurgica Mexicana smelter. 
 
 b?. Brooks, G.S, and Nitchie, C.C. Gas-prcaucer practice at Western zinc plant 
 Bull, 153, 131$, pr, 2763. A. I. M. & . M. E. Sailing gas. 
 
 88. Brown, E.F. Distribution of phosphorus and system of sa^plin t , at the Pewat 
 mine. Iron Mountain Trans. Lake Superior Min. Inst., vol. 3, 1835, p k j. 
 49-55. 
 
 S*. Brown, Myles Mines ani Minerals, vol. 26, 1905-06, pp. 168-170. Coal test 
 ing, describes methods and apparatus for sac.pii.ng coal and estimating 
 moisture in it, 
 
 90. Brown, R.G. Mine sampling. Eng. and Min, Jour., vol. 75, 1903, p. 130. 
 
 Calculations - foot-dollars and averaging. Vol. 77, 3.904, p. 151. Dis 
 cussion of Forbes Rickard on samples of group quartering to compare v\ith 
 the foot-dollar average. 
 
 -8- 
 
f O. (a) So^e tailing samplers, Min. and Sci . Press, vol. 93, .1906, p. o42. 
 
 Describes a tailing sampler in which a sampling box is swung, tnrou^n Dy 
 
 water power. 
 
 . Brown, V/.S. Device for reducing the size of assay samples. Eng. and Min. 
 Jour., vol. 63, 1907, p. 232. Describes a sailing cabinet with riffles 
 designed, by H.E.T. Haultiin, for mill ana sina sampling. 
 
 92. Brunton, D.W. Brunt on 1 s quartering shovel. Eng, ana Min.- Jour., vol. 51, 
 1891, p. 718. Describes and gives views of the shovel for ore containing 
 25 to 50 per cent of valueless gangue. 
 
 . _ , Interview by T.A. -,-Rickard, Min. and Sci. Press, vol. 122, 
 1921, p. 753, describes his wo rk in sampling. 
 
 . ____ . Modern Practice of ore sampling. Am. Inst.. Min, Eng., vol. 
 40, 1909, "pp. 567-596. Discusses development of sampling and Describes 
 sampling machines and mills. 
 
 . _ __. Modern progress in mining and * metallurgy in the Western 
 United States, Am. Insfc. Min. Eng., vol. 40, 1909, pp. 543-561. Dis 
 cusses sau.pl ing, 
 
 . _ ; __ . .New system of ore- samp ling, Trans. Am, Inst. Min. Eng., vol. 
 13, 1885, pp. 639-645. Discusses* public sampling and describes several 
 sampling devices. 
 
 , __ _ ._. Sampling of ore. Min. ana Sci. Press, vol. 97, 1908, pp. 
 
 665-666. Defends accuracy of moaern methods and discusses errors possible 
 with sampling machines. 
 
 98, ____ . Theory and practice of ore- sampling. Trans. A*-. Inst. 
 
 Eng., vol. 25, 1896, pp. 826-344, Report of investigation to determine 
 the fineness to which crushing cust be carried in sampling gold ana silver 
 ores to obtain results within an allowable limit of error. 
 
 99, Brunt on, E, K. British Columbia Copper Go s- smelter, Greenwood, B.C. Trans. 
 
 Am. Inst. MLn. Bag., vol, 52, 1915, pp. 950-964. Describes sampling mill 
 and gives flow- shoot. 
 
 100, Bullens, D.K, Assay of arsenic - nickel-cobalt-silver-ore. Eng. and Min. 
 
 Jour., vol. 90, 1910, p. 309-810. Describes sampling of silver ore at 
 Copper Cliff, Ontario. 
 
 101, Bunyan,F.W. Sampling Min, and Sci. Press, vol. 117, .1918, p. 837. Relation 
 
 between efficient s?mpling of raw materials and chemical control of their 
 manufacture. 
 
 102. Burch, Albert. S gup ling large low-grade orebodies. Min. and Sci. Press, 
 
 vol. 115, 1917, pp. Ho-116. Discusses mines that can not be samplea, <=und 
 accuracy of mill tests for iiiine samples, 
 
 -9- 
 
103. Burch, Kepyon, Mine ana ..all plant ci tse inspiration Consolidated Copper Cc 
 Arizona, Bull. Am. Inst. tfin. Enp.., Sept. 1916, no. 11?, Bp,146?-15C 
 SaiLpling plant, pp. 14&0- 14?1. 
 
 Bureau of Mines publications on sa^lin^ . t See U. S. Bureau of Mines in 
 Subject Indox at end of this bibliography, 
 
 104. Burgess, R.J, Mine sampling ?nci napping,. Er%. ana Min. Jour., vol 101, 
 1916, pp. 551-553. Discusses ?.dv ant ages of systematic sampling and the 
 keeping or records, j 
 
 lOo. Burnham, M.H, Continuous section system iu? t sailing. Trans, Inst. M. 
 and M, , vol X, 1S01 , p. 204. At one nine on the Rana the reefs were 
 sampled in sections, rather than sampling the minj as a whole* Discussion 
 by E.P, Rathbone, A.C. Hodge, W,H. Trewartha- James, W. McDormott. 
 
 106. Burrell, G,A. and Oberfell, G.G. Composition of natural gas used in 25 
 
 cities. Bureau of Mines Tech, Paper 109, 1915. Sampling w&s done by 300 
 c.c. bottles. 
 
 107. _ _ _ . and Seibert , F.M. Apparatus for gas-analysis laboratories 
 
 at coal mines! Bureau of Mines Tech. Paper 14, 1913, pp.23. Apparatus 
 includes the collection of samples. 
 
 106. _ . and Seibert, F.ivi. Sampling and examination of mine gases .na 
 natural gas. Bureau of Mines Bull. 42, 1913, pp. 116. Sample bottles, 
 handpump, fan and evacuated containers. 
 
 109. Robertson, I.W., and Oberfell, G.G. Blackdamp in mines. U.S. Bureau Mines, 
 
 Bull. 105, 1916, 88 pp. Describes the collection of samples of air in 
 mines, 
 
 110. Burrows, J.S. Importance of uniform and systenatic ccal-a.ine sampling. 
 
 U.S. Geol, Surv. Bull. 216, 1907, pp. 486-617. Discusses car sampling, 
 mine sampling ana sampling for laboratory experiments, 
 
 Mine sampling and chemical analysis of coals testeu at the 
 
 United St sites fuel-t isting plant, Norfolk, Va. U.S.G.S. Bull, 36^, 1908, < 
 pp. Gives method of collecting the car load samples, p. 7. 
 
 __ The Standardized Sewalls Point Pool coals. Black Diamond, 
 vol. 6(j, 19il, p. 636. Sampling coal at Sewall s Point, Virginia. 
 
 113. Buskett, E,w. Sampling and assaying spelter. Eng. and Min. Jour., vol. Qo t 
 1908, p. 812. Describes hand sampling of spelter. 
 
 ____ Sarjpling and buying ore in the Joplin district. Eng. and Min, 
 Jour., vcl* 86, 1908, p. 190, Describes sampling of zinc concentrate with 
 a tapering "gun" 4 inches diameter at handle ana 1 f inch at point thrust 
 into the ore in bin or car, 
 
 -10- 
 
115. C amp, J.M. The Methods of the U.S. Steel Corporation for the 
 
 and analysis of pig iron. Trans. Ac, Inst. Min. Eng., vol. 44, 1912, .pp. 
 220-549; Eighth Int. Cong, Applied C&etu. , 1912, sec. lllaj 
 
 116, _ ^ __ , Methods of the U.S. S&eel Corporation for the technical sailing 
 and analysis of gases. Met, and Chem. Eng,, vol. 9, pp. 302-306; 356-361. 
 Gives U.S. Steel methods of sampling blast furnace, producer, or flue gas, 
 p, 302. 
 
 ** 7 - ______ __ . Sampling methods. iVlin. and Sci . Press, vol. 99, 1909, pp. 535- 
 
 536, Discusses cargo sampling. 
 
 11Q - - -- Sampling r^ethods of U.S. Steel Corporation. Electrochem ana Met. 
 Ind., vol. 7, 1909, p. 65. Min. and Sci. Press, vol. 99, 1909, p. 535. 
 Jour. Ind. and Eng. Chem., vol. 1, 1909, pp. 107-115. Iron Trade Rev., vol. 
 44, 1909, pp. 230. Discusses methods of cargo sampling and preparation of 
 samples for analysis adopted, 
 
 119. Campbell, C.St.G. Sailing of the Cobalt, Ontario, silver ores. Trans. Can. 
 Min. Inst., vol. 17, 1914, pp. I99j Abst. in Min. and Eng. World, vol. 41, 
 1914, p. 58, Discussion, pp. 237-261. 
 
 119. (a) Canpbell, H.H. Manufacture and properties of steel, 4th ed 1907, pp. 
 
 639. Selection of test pieces, p. 19 and 313. 
 
 120. Campbell, J.R. Metallic iron in coke samples, Colliery Eng. , vol. 35, 1915, 
 
 pp. 538-541, Describes preparation of samples for determining the aiLount 
 of iron taken up from the grinding apparatus, 
 
 121. Campbell, M.R, Coal Fields of the United States. U.S. Geol. Survey P.P. 
 
 100 - A, General introduction, p. 27, explains how coal samples are 
 handled. 
 
 122 __. __ . Commercial value of coal-mine sampling. Trans. 4 m 
 
 Min. Eng., vol. 36, 1905, pp. 341-353, 834-835. Abstr. in Can. Min. Jour., 
 vol. 28, 1907, p, 113 and in Eng. ana Min. Jour,, vol. 80, 1905, p. 679. 
 Discusses mine ana car sampling at government coal-testing plant, St. Louis, 
 Mo. and suggests method of mine sampling. 
 
 123. Cairpredon, L. Echantillonage des matieres minerals. (Sanpling minerals). 
 
 Compte rend/S.oc. ind. 1906, pp. 294-297. Discusses sampling ore in place, 
 extracted ore and manufactured products such as coke and oil products. 
 
 124. Canadian Mining Journal. The projected custom samp ling -plant . Vol. 30, 1909, 
 
 pp. 580-584, Describes the pla^t and gives flow-sheet and plans, 
 
 125. Carle SE, Noel, Cyaniding of gold- silver ores at Waihi Grand Junction Mine, 
 
 New Zealand. Trans, Inst. Min. and Met., vol. 24, 1914-15, pp. 387-<*06. 
 Describes methods of sampling- and assaying, pp, 401-403. 
 
 186. Carter, T.Lane. Mine valuation, Eng. and Min. Jour,, vol. 75, 1903, p. 741. 
 
 Sampling recognized of utmost importance on tne Rana. Discrepancies between 
 hand sampling and nill results. 
 
 -11- 
 
126. (a) . Sampling placer ground, Eng. ana Mm. Jour,, 
 
 vol. 91, 1911, p. 603. Rocooiienas aigging pits to oedrock, drying the 
 panned residue, blowin b the block sands and weighing, in preference to 
 using churn drills ana sample diggers. 
 
 127. Cazin, Franz. A sii^ple sampling device. Eng. and Min. Jour., vol. 89, 19] 
 
 p. 358, 
 
 128. Chance, H.M. Prospecting for coal. Penn. Gael. Surv., vol, A.G. 1883, pp, 
 
 19-54, Describss selecting samples for analysis. 
 
 128, (a) Channing, J. Parke. Mine valuation. Eng. and Mn. Jour,, vol. 76, 
 
 1903, p. 383. Calculations based on sampling. 
 
 129. Char let en, A.G. Graphic method applied to delineating orebodies with note; 
 
 on sampling and estimating ore reserves. Trans. Inst. Min, and Met,, v<: 
 9, 1900-01, pp. 203-226; discussion, pp. 226-231* Describes system anu. 
 gives a list of papers on sampling and estimating reserves. 
 
 130. , The industry of mining. Inst. Min. ana Met., vol. 1, 189i 
 
 93, p, 184. Gives notes on sampling. 
 
 131. Chase, C,A. Liberty Bell mine: solution meter and pulp sampler. Trans. 
 
 Acaer. Inst. Min. Eng., vol. 42, 1911, pp. 694-741; Min. and Sci . Press, 
 vol. 102, 1911, p. 844. Gives drawings of a solution teeter-box meter, 
 with pans in water as dashpots and of a sampler with swinging cutter 
 attached to waightea disc tnat revolves loosely on a horizontal shaft. 
 
 132. . Notes on the Liberty Bell dine. Trans. Am. Inst. Min. Eng., 
 
 vol. 42, 1911, pp. 734. Describes automatic tailings sampler at the 
 Liberty Bell mill. 
 
 133. Chase, Edwin. Sampling large low-grade orebcaies. Min. ana Sci. Press, yo 
 
 115, 1917, p. 453. Ascribes sampling difficulties to lack of stanaara 
 assaying methods. 
 
 134. Chemical and Metallurgical Engineering. Bureeau of Standards, standard 
 
 samples, vol. 20, 1919, p. 276. Efforts to renew the depleted stock, 
 
 135. Chemical Engineering and Mining Review. Commercial sampling ana analysis < 
 
 coal, coke, and by-products. Vol. 10, 1918, pp, 245-2^6. Recommends 
 use of chrome or manganese steel for crushing coke samples to prevent 
 contamination with iron. 
 
 136. Editorials on Badak tin mine, Malaya, vol. XII, 1920, pp. 209 and 391. 
 
 Criticizes the sampling of 100 acres of tin ground by a dozen holes. 
 Property eventually abondoned. 
 
 137. Christian, G.L, Tonopah Extension Assay office. Min. and ivlet. No, 173, 
 
 May, 1921, p. 29. Preparation of silver ore samples for assay. 
 
 -12- 
 
138. Church, J.A. Goldfield Consoliaatea stapling Mill. En^. And Mm, Jour., 
 
 vol. 87, 1909, pp. 311-312. Describes jjethol in which the ore is only 
 re-crushed once during sampling owing to ultii^te fineness of crushing, 
 and in which & sample is taken fro-- all the ore. 
 
 139. _. Principles of cachine sampling. Eng. an^ Win. Jour., vol. 36, 
 " 
 
 1908 pp. 113-115; discussion, pp. 142, 238, 291, 33b, 431-433, 531, 776, 
 917, 551, 1013, 1111; vol. 87, 1909, pp. 269, 420, 516, 862. Discusses 
 conditions necessary for accurate s,unpling, the disturbing efforts of un 
 controlled agitation and the control of feed, describes simplex sampler. 
 
 139. (a) Clark, Donald. Australian Mining and Metallurgy. 1st. ea. 1904, pp. 
 
 534. Sampling sulphc-telluride ore, leaa-silver ore and d copper-gold- 
 silver-lcad ore. 
 
 140. Clarkson, T, Sampling. Trans. Fed, Inst. Min. En*,., vol. 9, 1894-95, p. 312; 
 
 discussion, pp. 314-319. Argues for sampling machinery. 
 
 Sampling of materials. Trans. Inst. Mm. and Met., vol. 2, 
 
 1893-94, pp. 229-248; Jour. Soc. Chem. Ind. , vol. 13, 1894, p. 214. Dis 
 cusses principles and. metnods of sampling ana describes seven different 
 ciechanical samplers for ores and tailings. 
 
 142. Claude t, A.C. Notes on sampling argentiferous ana auriferous lead, with 
 
 diagrams illustrating the unequal distribution of the precious ir.etals, 
 Trans, Inst. Min, aid Met., vol. 6, 1897-98, pp. 29-42.. Describes saupling 
 by (1) cutting chips out of tops and bottoms of bars, (2) sawing, by a cir 
 cular saw, through the bars, and (3) ir.elting the bars in mass into clean 
 lead and dross. 
 
 143. Cleland, E.D, ttest Australian Mining Practice. 1911, 268 pp. Discusses 
 
 sampling, pp, 102-103, 197-202. 
 
 144. Cleland, W.L. Tin-dressing at Stannary Hills, North Queensland, Trans. 
 
 Aust. Inst. M. E. , vol. Xii, 1907, p. 154. Automatic s&qpling of ruill 
 pulp. 
 
 145. Clennell, J,E. -phe cyanide handbook. 2nd. ed., 1915, p. 600. Covers fully 
 
 sampling from ore to residue in iiulls and from cyanide to bullion in 
 treatmynt plants. 
 
 =6. Clevenger, G-.A, Mill and metallurgical practice of the Nipissing Mining Co., 
 Cobalt, Ontario. Tran. An. Inst, Min. Eng,, vol. 49, 1914, pp. 156-179. 
 Discussion pp. 179-162. 
 
 =7. Cloud, T.C, Wallaroo smelting works. Eng. and Min. Jour. , vol. 83, 1907, 
 pp. 324-330. Describes sampling room and methods at Wallaroo, South 
 Australia. 
 
 8. Coal Age. Automatic sampling of coal. Vol. 8, 1915, pp. 423-424. Describes 
 and gives figures showing an automatic sampler. 
 
 -13- 
 
2i3v; coal crusnc*r ana sampler, vol.4, 11/13, p, 606. 
 
 An autou-atic ur,c*. reliable stalling ri^C iire made by tne Sturtevaat 
 Co. of Boston. 
 
 150. Cclburn, S.A. Mind ana mill equipment t.t tne Ajax mino, Mexico. Max. Mm. 
 Jour., vol. 16, 1913, p. 231. Describes S-Xuplin^ and crushing i^h jds. 
 
 151. Colby, A.L. Sampling pig iron for gmalysis. Iron Age, vol. 61, June 2, 
 
 1898, pp. 13-16. Discusses sampling the drilling. of pigs, the dnl 
 from snail test ingots, shotted samples, sampling to determine graphitic 
 carbon, saL;plin t; of cars, and sampling to check chemist s analyses. 
 
 152. Colcord, F.F. Eng. and Min. Jour., vol. 82, 1906, pp. 1164. Describes 
 
 method used in the Cobalt district for sampling and assaying ore carrying 
 metallic silver, 
 
 153. _ . Sampling, ana assaying. Min. Ind., vols. lo (1906), 16 (1907), 
 17 (1908), 18 (1909); pp. 790, 944, 966, 731, respectively. Reviews arti 
 cles on sampling for year. 
 
 154. Cole, A. A. Sampling of silver- cobalt ores at Copper , t Cliff, Ontario, Jour. 
 
 Can, Min. lust., vol. 11, 1903, pp. 267-292; Eng. and Min. Jour., vol. 67, 
 1909, p. 1283. Describes method involving first cut with Snyaer sampler, 
 finishing on Jones riffles. 
 
 155. Colliery Enginoer. Analysis of coal, ores, etc.. Vol. 12, 1891-92, p. 211. 
 
 Describes canvas and quartering method of preparing samples. 
 
 156. Collins, E.J. Knock-down sample catcher. Eng, ana. Min. Jour., vol. s>7, 
 
 1914, p, 1289, Describes a canvas catcher for use in cutting samples 
 a face . 
 
 157. Collins, G.E. Mine sampling:. Eng. and Min, Jour., vol. 76, 1903, p. 4. 
 
 Discussion of Philip Argall 1 s classification of ore deposits. 
 
 157. (a) _ . Searching for ore-shoots in veins. Eng. and Min. Jour., vol. 
 95, 1913, pp, 941-9^4, Discusses value of geologic theories ana detailed 
 sampling of indications as guides on exploration. Reprinted in p-.r& from 
 address before the Colorado Scientific Society and published in its Pro 
 ceedings, April, 1913. 
 
 157. (b) Collam, R.E. Prospecting and testing oil, gas, and water-bearing 
 
 strat-a. Bureau of Lines Bull, 201, 1921, Sampling and identifying drill 
 cuttings from oil-wells. 
 
 157. (c) Courtis, W.M. sampling Mines. Eng. and Min. Jour,, vol. 75, 1903, p. 
 473 . Grab sampling considered of value . 
 
 158. Cox, H.A. Gas-sa:,pling pipes. Power, vol. 44, 1916, p. 360. Suggests 
 
 method for sampling gas for recorders and Orsata, 
 
 -14- 
 
159. Crarjpton , T.H.M. Silvernorn district, Nevada. Min. and Sci. Press, vol. 
 
 122, 1921, p. 883. Sampling an outcrop ana cost of assaying samples. 
 
 160. Crane, E.B. Difficult nine sampling. Win. ana Sci. Press, vol. ll<i, 1917, 
 
 p. 539. Sampling cinnabar. 
 
 161. Crocker, Wai. Prospecting, Min. and Sci. Press, vol. 122, 1921, p. 774. 
 
 Prospecting and sampling alluvial gold. 
 
 162. Crocker, W.J. Average analysis of iron ore; method by units. MKa, and Eng. 
 
 World, vol. 38, 1913, p, 434. Describes method by unit of sampling ore as 
 it coiT.es out of the mine on the way to stockpiles. 
 
 -Cro^eo, C.S. Oil-shales of Estill County, Ky. . Eng. and Min. Jour., vol. 
 110, 1920, p. 24. Preparing samples for distillation tests. 
 
 164. Crowell, Benedict. Methods of sampling at Lake Superior iron mines. Proc, 
 
 Lake Superior Min. Inst,, vol. 17, 1912, pp. 76-93; Abstr. in Iron Trade 
 Rev., vol. 51, 1912, pp. 1215-1217. Describes and criticizes present 
 methods of sampling ore in place, broken ore and in car load lots, and 
 suggests new methods. 
 
 165. Crowell and Musray, Iron ores of Lake Superior. 1st. ed. 1911, pp. 186; 
 
 2nd. ed in 1914, pp. 257; 1917, pp. 323; 4th ed. in 1920, pp. 285. 
 Sampling iron ores on pp. 28, 48, 79, and 31, respectively. 
 
 166. Crowfoot, Arthur, and Donaldson, K.H. Leaching and concentrating mixed 
 
 copper ores. Eng, and Min. Jour., vol. 110, 1920, p. 471. Sampling a 
 darge dump of slime by Digging pits. 
 
 ,167. Crowfoot, Arthur, and Witterran, Ernest. Developing a mill flow-sheet at 
 Morenci, Ariz. Eng. and Min. Jour., vol. 109, 1920, p. 1349, Method of 
 sampling copper tailings. 
 
 167. (a) Curia, J.H. Some aspects of ciine valuation, Eng. and Min, Jour., vol. 
 
 75, 1903, p. 701. Australian engineers did not sample mines properly 
 when examining them. High assays and calculations, 
 
 168. Curtis, A.H. Examination and valuation of ruines, Trans. New Zealand, Inst . 
 
 Min. Eng., vol. 2. 
 
 169. Dahlerus, C.G., Akerblom, K.A., Lundbohm, H. ana others. General proftagnig. 
 
 (Sampling of ores.) Teknisk Tidskrift, vol. 24, 1894, Section kemi cch 
 metallurgi, pp. 10-24. abstr. Jour. Iron and Steel Inst., vol. 46, pt. 2, 
 1895, p. 390, Abstract refers to Dahlerus, Nordstrom, Akerblom; Lundbohui, 
 Dahlstrom, Larson, Landin, etc. Discusses tha sampling of ores of iron, 
 zinc, and copper and methods used. 
 
 L70. Dahlstrom, R. Sampling ores. Teknisk Tidskrift, vol. 24, 1894, p. 20. 
 
 L71. Daman, A.C. Automatic ore sampler. Eng. and Min. Jour,, vol. 103, 1917, 
 p. 188. 
 
 -15- 
 
172. Davelor, .7. Milling plant of Alaska Gastineau Minin fc Co. iviin. and Mat. 
 
 , 17, sec. 11, 1920. Sampling results on 19 mill products. 
 
 173. EjYfnpjrt, L D, Automatic sand sampler. Eng. and Min. Jour., vol. 96, 1913, 
 
 p. 69. Describes device for sampling discharge from Dorr classifier. 
 
 174. Day, D.E . Oil-shale and the engineer. Eng. ana Min. Jour., vol. 110, 1^0, 
 
 p. 1182, Drilling and sampling shale. 
 
 1.75. Ttean, E.W. Properties of typical cruae oils from Eastern_producin t fields 
 of United States. Bureau of Mines Serials 2202 and 2235, 1321. Brijf 
 mention of method of samplin e . 
 
 176. Decoto, L.A. Valuation of placer ground. Min. and Sci , Press, vol. 108, 
 
 1914, p, 773. Drill-hole samples calculations, 
 
 177. Degcutin, K. L 1 etude pratique aes irdnerais auriferes principalnient dans les 
 
 colonies et pays isoles, (Practical study of gold minerals, chiefly in tne 
 colonies and isolated countries.) Bull, de la Soc. ie l f Industrie minerals 
 ser, 4, te. 5, 1306, p. 1167. Describes crushing, screening of ores, and 
 reducing size of samples. 
 
 173. Kalb, Court ensy. Sacramento Hill disseminated copper deposit - I. Min. and 
 Sci. Press, vol, 116, 1918, pp. o49-c54. Describes prospect sanpling of 
 part of the Copper Queen mine, Irfcsona, and gives detail of a sample splitte: 
 
 179. Delamater, G.R. Standardization in coal washing, Mines and Minerals, vol. 
 32, 1911-1912, pp. 461-46o. Describes experiments to determine hov, fine 
 a sample must be crushed to givi satisfactory results. 
 
 180, Del Mar, Algernon. Simple automatic sampling device, Eng. and irtin. Jour., 
 vcl, 90, 1910, p. 60. Deacribes a tailing sampler used at the Bunker Hill 
 Mill. 
 
 180. (a) __ . Stamp-milling. 1st, ed., 1912, p. 134. Ail Lai 11 
 
 samples shoudd be taken automatically. Tv. o tailing samplers Bbov^i . 
 
 181. Delprat, G.D. Ore treatment at Broken Hill Proprietory, Australia. Trans. 
 
 Aust. I. M. E.,-vol. XII, 1907, p. 4. Scoop samples taken hourly by hand, 
 and found to be reliable, 
 
 182. Denrnachie, W.J.N. The theory and practice of sampling and calculation of 
 
 ore reserves, Min, Jour,, vol, lOi, 1314, pp. 247-249, 291-222. Dis- 
 . cusses possible dif f ica.;.ties of samples of a gold vein and gives several 
 methods for keeping records. 
 
 Dennis, F.J. Examination of dredging properties. AM. Inst. Min, En^,. Bull. 
 64, 1912, pp. 4*07-410. Discusses proper metliod. 
 
 Denny, G.A.. Estimation and valuation cf ere reserves, Trans. Mexican Inst. 
 M. and M. No. 2, 1S10-1911, p. 11. A treatise on methods of sailing 
 calculations of reserves. Methods applicable in certain cases are often 
 used as though universally suitable whereas errors arise from such pro- 
 cedurs . 
 
 -16- 
 
184. (a) _ . Mine sampling. En^, and Min, Jour,, vol. 75, 1903, 
 p. 960. Sampling and recording at ths Meyer and Gharlton gold mine, 
 Transvaal. This is carried out in great detail. 
 
 184. (b) _ _^, Observations on sampling, computation of assay-aver 
 ages, and relation of assay-value to recovery- value as applied to ban 
 ket mining in the Transvaal. Trans. Inst. Min, Eng., vol. 19, 13S>- 
 1900, pp. 29*-316; discussion, pp. 316-320, Gives procedure in sampling 
 
 184. (c) __^_ _ . Some observations bearing on valuation of orebodies. 
 
 Trans. Mexican Inst-. M.,& M. , No. 1, 1909-1910, p. 147. Importance and 
 difficulty of sampling discussed, and numerous examples of orabodies 
 shown. Discussed in No. 2, 1910-1911, p. 1, by Vdlliam Crosley. 
 
 185. Deutman, E.G. Roasting and magnetic separation of Wisconsin zinc ores. 
 
 Eng. and Min. Jour., vol. 107, 1919, p. 1107. Concentrates are sampled 
 by Blotted pipes, covered with a sheath, which is pulled off when the 
 pipe is in position, allowing the s^uLple to fall into the slots. 
 
 186. Dewey, F.P. Assay and valuation of gold bullion. Trans. Am. Inst. Min. 
 
 Eng., -vol. 40, 1909, pp. 780-797; Report of the Director of the Min*, 
 1909, pp. 27-36. 
 
 187. _ . Direct determination of small amounts of platinum in ore and 
 
 bullion. Trans. Am, Inst. Min. Eng., vol. 43, 1912, pp. 578-591. 
 Describes tuethod of sampling molten auriferous copper bullion, p, 588. 
 
 188. ___ ^ Sampling of gold bullion, Trans. Am. Inst, Min. En fe ., vol. 44, 
 
 1912, pp. 853-879; discussion, pp. 879-882. 
 
 189. Dickenson, E.H. Grab sampling. Sch. Mines Quart., vol. 35, 1913, pp. 55- 
 
 56. Discusses errors in grab sampling copper ore, 
 
 190. Dickenson, E.H., and Volker, H.J. Samples and their interpretation. 
 
 and Min, Jour., vol. 101, 1916, pp. 933-936. Outlines methods of 
 plotting assay taaps and showing value of ore, width, and tonnage. De- - 
 scribes keeping of notes. 
 
 191. Dickson.H.C. Crucible-assaying of old-ores. Trans. Inst. Min. Eng., 
 
 vol. 22, 1901-02, pp. 673-690; discussion, vol. 23, 1901-02, p. 698. 
 Describes taking and preparing vein samples, pp. 674676. 
 
 192. Dixon, J.T. Valuation of placer ground, Min. and Sci . Press, vol. 109, 
 
 1914, p. 962, Drill-hole samples calculations. 
 
 193. Dodd, W,G. Ore or pulp sampler. U.S. Pat. 693,690. Min, and Sci. Press, 
 
 vol. 84, 1902, p. 317, Describes an improved autouc tic tailings sampler, 
 
 194. Dods, R. Sampling. Chem. Engineer, Feb. 1910, vol. 11, pp. 58-60. 
 
 Describes saiupling of auriferous and argentiferous lead bullion and 
 automatic samplers, 
 
 -17- 
 
194. (a) Dolbear, S^uel K ff ana. Burch, Albert, Chroma, to. Pamphlet puoliahci 
 
 by Min. and Sci. Press in 1917. Complete inf or nation oi" prcsec co: / , ft . 
 sa^plin & , and shipping chroue , 
 
 195. Doolittle, C.H. and Jarvis, R.P. Pyritic s^eltin^, at Lsadville, Tians. 
 
 Av.. Inst. Min. Eng., vol. 41, IS 10, pp. 709-722. Describes Scunplir..^ 
 methods, p. 715. 
 
 196. Dougherty, G.T. Bullion sa.-plin^ ?na assayin^. En . ana Min. Jour., vol. 
 
 41, 1866, p. 4. Describes a puncher for sa^plin^" car loads of ore. 
 
 196. (a) Dub, G.D., and Moses, F.G-. Minin fc and prep/.rin^ domestic fc raphite 
 
 for crucible use. U.S. Bureau of fvdnes Bull. 112, 1920, pp. 74, On 
 pages 36-38 is described and illustrated the u.ethod of and apparatus 
 for sampling sacked graphite. 
 
 197. Du.:.oulin , V. .L. Crushing practice, New Cornelia Copper Co. Bull. 152, 
 
 Aug. 1919, A. I . M. & iVl. E. p. -1203. A 1 per cent sample of 5000 tons 
 daily is taken. 
 
 198. Duschak, L.H. and Schuelte, C.N. Co niensint quicksilver from furnace ^p.ses. 
 
 Tecsrhnical Paper, 96, U.S. Bureau of Tfines, 1919, 29 pp.; Min, and Sci. 
 Press, vol. 117, 1918, pp. 315-323. Describes procedure in sa^plin^ ana 
 preparation of sample for analysis. 
 
 199. Eastau t h, F.A. Effect of different methods of crushin_ on the ash of coke. 
 
 Trans. Inst. Min. & Met. , vol. 2-, 1914-15, pp. 483 *83. Descrioes 
 experiments to show the effect of different methods of praparin^ sainples. 
 
 200. Easter, H.F. Ls?.d Sceltini at El Paso. Trans. Ac., Inst. Min. Eng., vol. 
 
 52, 1916, pp. 715-729. Describes sampling base bullion, pp. 717. 
 
 201. Ediiian, J.A. Studies in er oli-.idllin . Discusses relation of size ^rain to 
 
 fo old content. Min. ana Sci. Press, vol. 67, 1693, p. 277. 
 
 202. Eau.aniLS, H.R, Assaying at Globe and Phoenix fc old mine, Roaesia. Min, and 
 
 Sci. Press, vol. 121, 1920, p, -52. Preparation of samples. 
 
 203. Edwirds, Edward. Tin sluicing in Tasmania. Trans. Aust . j. &. E. , vol. 15, 
 
 1911, p. 276. Calculating tin deposits by face sailing,, tunnels, cores, 
 and shafts. 
 
 204. fibers, J.H. Application of air-drills to ^.ine samplia^. En fc . ana iViin. 
 
 Jour., vol. 108, 191*, p. 358. A row of shallow holes is drilled 
 and the intervening ribs of ore are cut, 
 
 205. Efeleston, T, Metallurgy cf silver, b old and mercuryrin the United States. 
 
 7, 2v. Discusses sjJLplin^ , vol. 1, pp. 66- 7o; vol. *., pp. 
 
 206. Ehrcann, L. Notes on sa^plijri fe analyzing and treating slide. Proceed. 
 
 and Met. Soc. of South Africa, vol. ?, 1^97-99, pp. 697-705. Min. ana 
 Sci. Press, vol. 79, 1899, p. 256-267. Describes auto^tic sampler for 
 sliu.es and gives causes cf errors in assays. 
 
 -18- 
 
20?. Elder, R.B. An automatic pulp sampler. En^ . ?.nd Min. Jour., vol. 101, 
 1916, pp. 524-526. 
 
 20d. Method of obtaining representative coal samples, Vol. 66, 1915, pp. 366- 
 367. Describes briefly revolving drum in side of coal finite to rai^ve 
 sanple , 
 
 209. Electrical World. Convenient nethoas r.na devices for sampling, coal. Vol. 
 
 68, 1916, p. 426. Describes three automatic samplers. 
 
 210. Elliot, R.H. Relative errors in alluvial sampling. Min, and Sci . Press, 
 
 vol. Ill, 1915, p. 465. Criticizes article by C.S. Haley. 
 
 211. Ecaniinger, W.G. Sampling in a id 11. Min. and Sci, Press, vol. 122, 1921, 
 
 p. 152. Method of taking pulp samples at Rochester, Nevada. 
 
 212. Engineering and Mining Journal (anonymous). Anaconaa Copper Mining Go s 
 
 new reduction works, Vol. 73, 1902, pp. 311-313. Describes saajplin^ 
 department . 
 
 213. _______ , Anaconaa sample mixer. Vol. 
 
 92, 1911 , p. 739. Describes nixer for pulp samples. 
 
 213. (a) __ ___ . A prorLisin^ gold field, ana 
 tests by s^plin^., vol. 76, 1903, p. 69 Experiences in hana sa^plin^, 
 and uill tests on a gold-bearing quart zite.Gostilla County, Colo. 
 
 214. ______________ . Arizona Eercules Copper Go s 
 
 plant. Vol. 107, 1919, p. 1117. Flow-sheet shows position of sampling 
 machines . 
 
 215. ___________ , A promising b old field and 
 
 tests by sampling. Vol. 76, 1903, pp. 89-90. Discusses discrepancies 
 in hand and mill sampling. 
 
 216, _________ . A question of sa^plin^. Vol. 
 
 73, 1902, p. 623. Discusses controversy between iLines and smelter as to 
 whether the ore shall be crushed fine for sampling. 
 
 217. ___________ _ Assay of base bullion. Vol. 
 
 33, 1882, p. 259, 290, vol. 3 i, 1862, pp. 6, 133. Discusses proper 
 methods of sarLplir^ and assaying bars of lead bullion, 
 
 213. __ ^ _____ _. Automatic Mine air sampler. 
 
 Vol, 91, 1911, p. 647. Describes a device that samples inne air auto 
 matically at definite intervals, 
 
 219. __________ ___ Automatic ore-pulp sampler as 
 
 shown in report by the Cornish (Eitland) Sxib-co^imttee on Tin ana T un^s 
 Vol, 107, 1919, p. 412. This is a -lot tippler, recommended after u.any 
 tests. The nuuiber of cuts per hour is twenty, 
 
 -19- 
 

 . Automatic ore sampler. Vol. 36, 150&, 
 
 p. Idl. Description of aevice used ~t Beaccnsf iold, 
 
 _ . Automatic ssuipler. Vol. *3, 1*12, p. 
 " " 
 
 ic sailer for tailings. 
 
 . 
 
 36 l 1,12, p.. 660-666. Describes an 
 
 222 . Brid^ei-an 1 s assay office BC^V.**^ 
 
 ~Hchlne. Vol. 61, 18*675^5437 Doscri bes a s.-all nachine for use in 
 
 assay offices. 
 
 223 . Byrnes autou-atic pulp -sampling 
 
 Machine"] Vol. 75, 1*02, p. 468. Describes a machine so placea in the 
 
 system of launders and pipes that it can take the entire^flow from 
 
 crushing ^achi nsry or tables ?.nd ^ive an average sou definite sample . 
 
 226. 
 
 cloth. 
 
 . Cole sampler. Vol. o5, 10, P. H* 
 
 "Describes machine designed to sample ore crushed to 1 or If inch in siz 
 
 . Clarkson s sr^plint. machine. Vol. 5 
 
 13*4, p. 513~! Describes machine with a revolvint hopper and adjustable 
 discharge opening. 
 
 . Collecting aine samples. Vol. *4, 
 
 1912, p, 1025. Recct-mends use of round pliable basket lined with oil 
 cloth. 
 
 227. . Colliery notes. Vol. 63, 1*07, p. 2<c 
 
 Gives method for takin^ san^ples of mine air. 
 
 226. . Compact sao-ple splitter. Vol. 102, 
 
 1*16, p. 746. Describes a portable sample splitter. 
 
 22. . Co-operative sampling ana assaying of 
 
 s^all ininesT Vol. 62, Ic96, p. 242. Discusses importance of frequent 
 saiaplin fc by a trained ^an, ana su b gests a comoion assay office for a - 
 group of sL-all riines-. . 
 
 22S. (a) . Driving lab. crushers. Vol. 112, 1*21 
 
 p. 177. A convenient drive for laboratory crusher and sample 6 rinaer. 
 
 . Estimates of Mesabi Range orebodies, 
 
 Minnesota, vol. 110, 1*20, p. 350. Lay-out of drill-holes in sauplin b 
 iron "^re . 
 
 230. 
 
 iron ore. 
 
 231. ______ ___ . Filter for slice sanples. Vol. * ?, 
 
 1*11, p. ^31. Describes a three coapartuent filter. 
 
 232 
 
 1*14, p. 24. 
 
 Flask fcr moisture samples. Vol. *b, 
 
 -20- 
 
233. ____ . Fracture samples of furnace slftfe. Vrl. 97, 
 
 1914, p. 105, 1051, Describes judgin^ efficiency of furnace by exam 
 ination of fractures of &!*,_. 
 
 234. ______ . Flood, auton^tic sampler. Vol. 94, 1912, p. 
 
 1217. 
 
 235. _ . Francis autoc-atic pulp sampler. Vol. 102, 
 
 1916, p. 427-428. Describes a sampler of tne traveling slot type, with 
 a biltin e -bcx niotcr. 
 
 . Great Cobar smelting works. Vol. 65, 1906, 
 
 pp. 950-956. Describes and gives plans of the s^.plink works. 
 
 237, ___ _____ _ Grinding samples fcr ass=iy. Vol. 94, 1912, 
 
 p. <*46, 53<, 728. Describes experiments proving that tne finer tne 
 the lower the ^etal product. 
 
 238 __ . _ . Hamilton automatic sampler. Vol. 101, 1*16, 
 p. 603. Describes a rrachine that autocratically selects 1/96 of the 
 original sample. 
 
 239. _ _____ _ . Handbook of filing details. 1914, p. 425. 
 
 "Sampling," pp. 1-30. 
 
 240. _______ __ . liiprcved teeter-box sac/pier. Vol. 94, 1912, 
 
 p. 303. Describes ? teeter-box sarr.pl or that is regulated by plunders 
 and cylinders and the strearr. of water that is fed to the teeter-bc*. 
 
 2*1. _____ ____ . Metallic*. Vol. 66, 1909, p. 226. De 
 
 scribes a canvas funnel tied at the bottom for catching cine samples. 
 
 242. _ _ Method of sacpling., Horn Silver Mine, Utah. 
 
 Vol. 26, 1979, p. 352. Describes oat hod in which 500 to 600 Ibs . of ore 
 was picked loose free: every 25 to 50 feet, crushed, thoroughly a,ixed, 
 and 40 to 50 Ibs. taken as a s-usple. 
 
 2<3. __________ _ . Methoa cf satpliru. ^.ine dust. Vol. Ill, 
 
 1921, p. 506. Dust was Cc.ugnt by J.A. wcCrae in a tube ccr.taining cane 
 sut,ar . 
 
 2<*4. _ __ . Mine sa^plin^.. Vol. 7o, 1903, pp. 960-962; 
 
 vol. 76, 1903, p. <*, 45, 60, 116. Brief ccn^ents by different mining 
 engineers. 
 
 245. ___ . New sampling .^c^ ir.es. Vol. 7y, 1^05, p_?, 
 
 347. Describes a sciall roll-jaw crusher for use in laboratories. 
 
 246. _ . New saqplin^ plant at Hamburg, Ger^^ny. Vcl. 
 
 100, 1915, pp. 140-141; ccc_xent , p. 319. Describe . : .= ar.i z 
 tus for sampling pyrites. 
 
 -21- 
 
247. . Now sampling plant at Tonopan. Vol. ^, 
 
 I9^o, p. ~57 T~ 
 
 248, . Ore s Q)?.int. and v/ei -.hint, at the lo.pisr n^ 
 
 ~miiT~ Vol7^77"l9147"pp . 1293-1394. Describes methods used. 
 
 249 4 . Overflow indicator for sample bin, Vol. ^8, 
 
 l9l47~pT 117. 
 
 250, . Rapid sampling filtar. vol. 90, 1910, p. 819. 
 
 Describes a filter cf silica sponge. 
 
 251. . Regulations for ScuLplin b at tne Trail Smelter 
 
 B.C. Vol, 106, 1919, p. 223. 
 
 252. . Salting. Vol. 110, 1*20, p 507. Any en 
 gineer may have his samples salted. 
 
 2o3. . Salting oil properties. Vol. so, 1913, pp. 
 
 25ft. , Sample reducing u^chine, Vol. ^3, 1^12, p. 
 
 255. . Sampler for cyanide plants. Todd s or 
 
 " Horue stake sampler, Vcl, 93, 1912, p. 541. Describes and gives detail of 
 sand- sampling device. 
 
 256, . Sampling accident at Hoosier Mine, Colorado, 
 
 due to old bulkheads and insecure ladders. Vol. 103, 1917, p. 642. 
 
 256. (a) Sacpling and estimation of ore in a mine, Ene, and Min. Jour. , vol. 75 
 
 1903, p. 513, A c.ine to be sampled should first be examined generally; 
 trustworthy assistants are essential; pairs of samplers to take alternate 
 samples; dark clearly all places s^Lpled; reduce samples as soon as possi 
 ble, use a factor of safety in estimates, 
 
 257. . Sampling a wet level. Vol. 75, 1903, pp. 
 
 436-437, Describes ana ^.ives sketch of flume used. 
 
 256. . Sampling by borings from rock-drills. Vol. 
 
 89, 1910, p. 710. Method of collecting samples at tne Moiint Morgan Mine, 
 Queensland, Also discusses chip sampling and diamond drill sampling. 
 
 259. . Sampling by machine. Vol. 86, 1908, p. 101; 
 
 vol. 87, 1909, pp. 5i6-ol7. Discussion of proper and improper sampling 
 machines. 
 
 260. . Samp.1in, copper by granulation. Vol. 90, 
 
 1910, p, ll-ib. Discusses probable source of error introduced by sampling 
 converter charges by a ladle sample granulated into water. 
 
 261. . Sampling devices. Vol. 87, 1909, p. 216, 
 
 A chair for the sampler and a bag for catching samples. 
 
 -22- 
 
__ Sampling f ro *ii lip of a Challenge feeder. Vol. 
 ^4, 1*12, p. 640. Describes device for taking pulp sample. 
 
 ____ . _ . Samplin b inported ores. Treasury dep?.rtu.ent , 
 ""Secretary 1 s decisions, March 7 3 1693, Vol. 55, 1893, p. 416. Treasury 
 decision on testin^ carloads of ore. 
 
 ___ . Saoplin, in Western Australia. Vo.l 3<S, 1908, 
 ~"~p . 340l Jour, Chamber of Mines, W.A., May, 1908, p . Describes 
 methods of sampling of ore in place. 
 
 _ _ ___ __ . Saitpling, leaa concentrates. Vol. 69, 1*10, 
 
 p. 1216; vol. 90, 1910, p. 253. Describes <and ives sketches of device 
 . fcr samplin s car load lots of fine lead concentrate. 
 
 __ . Sampling ore. Vol. 94, 1912, pp. 15*-160, 
 198, 390. Discusses inaccuracies of hand sampling. 
 
 ___ _ _ , Sampling ore. Vol. 14, 1672, p. *. Discusses 
 advantages of mechanical sampling over hana sampling. 
 
 __ __ . sampling oreboaies. Vol. 60, lc*, p. 672. 
 Discusses various methods. 
 
 269. ____ . Satnple-quartering table, Vol. 103, 1917, p. 
 
 350. Describes a table and hooa for the dustless quartering of samples. 
 
 270. ______ . Sai4plin, practice at Miami Copper mine, Ariz,. 
 
 """Vol. 94, 1912, p. 540. 
 
 271. _____ ____ . Sampling-screen driven by compressed air. 
 
 ToT. 90, 1910, p. 63 1. Description of tne device. 
 
 272. __ _____ __ Sampling spelter. Vol. 102, 1916, pp. 1*6, 
 
 331, 432. Discusses standards of the American Society for testing 
 materials and the neea for contracts between buyer ana seller. 
 
 273. . Saaiplinb syaposiu.-,, see 733 a. 
 
 274. __ __ . Seals for oine samples. Vol. 101, 1^16, p. 
 
 439 . Describes method of sealing bags of samples 
 
 275. _____ , Sheridan Oscillating ore sampler. Vol. 94, 
 
 19127 p, 932."" 
 
 276. ___ __ . Smelting ana. ore-sales investigations in 
 
 Colorado. Vol. 105, 1*18, pp. 536-543. Describes uiill sampling icethoas 
 in excerpt from report of O.K. Whi taker to the State Ccoaaittee. 
 
 277. _ ______ Solution sampler ana weigher. Vol. 94, 1912, 
 
 pp. 116*-1170. Describes a device for sampling cyaniae solutions. 
 
 -23- 
 
276. ___ _ __ . Standard, specifications for copper wire bar* . 
 
 Vol. 93, 1912, p. lol. Gives rulas fcr sampling copper v.ire b^rs, c,,<: 
 slabs, billets, ingots n~ i^gct b^rs, given by American Society i cr 
 Testing Materials and thg Intarnatic n*l Association fcr Testing M-^ti.-ials , 
 
 279. _____ _____ ______ . Ste-im- jacketed drying table for tailing, sa.. - 
 
 ~ples7~ Vol. 100, 1^15, p. 969. 
 
 260. ____ . Taking samples from arill-holes. Vol , y* , 
 
 1912, p. 61. 
 
 261. __ . Van Mater Sc,mpler. Vol. od, 1909, pp. 1262- 
 
 1263. Describes apparatus designed, for use in sriall 
 
 262. __ ___ . When sampling fails. Vol. 77, 1904, p, 593. 
 
 Discusses impracticability of any systei- for erratic ore bodies or hurried 
 investigations . 
 
 233. _____ , Will it co..e to tnis. Vol. 107, 1919, p. 795. 
 A satire on aiy en^ineosrs ..Ine report, including 3 stanzas on sampling. 
 
 264. Erickson, E.T, Detecting small quantities of petroleum, Eng. and Min. Jcur. 
 Vol. 112, 1921, p. o9. Sa L :plirife oil-bearing rock for analysis. 
 
 2o5. Eustis, V/.E.C. Comparison f various methods of copper analysis. Trans, 
 Am. Inst. Min, En b . , vol, 11, 1863, pp. 120-122, Describes method of 
 preparing the samples of about 1 per cent of total contents. 
 
 286. Eye, C.M., and Dodd, M.F, Millin t at Ben^uet Consolidated, Philippines, 
 Min. and Sci. Press, vol. 121, 1920, p. cs46. Erratic samples froi- ore- 
 feeders. 
 
 257, Fansett, G.R. Sampling mineralized veins. Arizona State Bur. of Mines, 
 
 Bull. 66, Ser. 3, 1917, 5pp , Gives airections for sampling ana for meas 
 uring the width of an orebody. 
 
 263. Farish, J.B, Ways that are dark. Min. and Sci. Press, vol. 110, 1915, pp. 
 
 576-579. Describes experiences with salted samples and other frauds, 
 
 259. Farrell , J.H. Kansanshi mine and mine sampling,, Min. ana Sci. Press, vol. 
 96, 1908, pp. 52S-530, Describes valuation of copper ore in place in 
 northwestern Roiesia. 
 
 290. ____ . Mining exploration. Min. and Sci. Press, vol. 120, 1920, 
 
 p. 269. Hew sampling is regardeu. by owners of small mines. Discussion 
 on same by W.C. Frazier, p. 407. 
 
 291. Fay, A,H. Geology and Mining of the tin-deposits.- Cape Prince of Wales, 
 
 Alaska. Trans. Am. Inst. Min. Eng., vol. 38, 1907, pp. 664-662. Describes 
 methods of sampling and assaying, 
 
 292 . _ . Glossary of minin^ terus. Bull. ^5, p. bd9. Definitions of 
 sampling. 
 
 -24- 
 
29. (a) Fawns, Sydney. Tin deposits of thj world, 3rd. ea., 1920. Numerous 
 references to sampling of ores and metallic tin. 
 
 293. Feust, Arthur, Practic,.! points on sampling. Min, ^arid Sci. Press, vol. 
 
 110, 1915, pp. 368-370. Describes practical methods for taking, ana 
 cutting clown mine samples, 
 
 294. Fields, H.B. A laundar-s^upler. Min. and Sci. Press, vol. Ill, 1915, p. 
 , . 919. Describes device for sampling pulp. 
 
 235. Finlay, J.R. Mine valuation. Eng. ana Min. Jour,, vol. 93, pp. 1238-1239, 
 1912. Biscussjs factors be-.ring on the value of undeveloped mining 
 property.. 
 
 296, Fieldner, A.C. Accuracy ana limitations of coal analysis. Proceed. Coal 
 Min. Inst. An:., 1^12, pp. 25-281. Discusses sampling, pp. 270-2ol. 
 
 29 7 ____ . Notes on sampling ana analysis of coal. U.S. Bureau of 
 
 Mines, Tech. Paper 76, 1914, 61pp. Discusses factors affectirig accuracy 
 of sampling and analysis and outlines methods used by the Bureau cf Mines 
 
 298 
 
 Preparation of laboratory samples. Jour. Ind, and 
 
 Chem., vol. 5, 1913, pp. 518-521, Discusses size of samples, shipping 
 containers and two methods of sampling according to size of coal. 
 
 299. _ __ _ anci Katz, S,H. Gases produced from carbon tetrachloriae 
 
 and foamite fire extinguishers in mines. Bureau of Mines Serial 2262, 
 June 1921. Plan shews position of taking gas samples. 
 
 300. ; __ ., and Selvi fe , W.A. Det emanation of moisture in coke. Tech. 
 
 Paper 148, 1917. Method of handling samples during tests. 
 
 301. ___ ., Smith, H.I., Fay, A.H., and Sanford, Samuel. Analysis of 
 
 mine and car samples of coal collected in the fiscal years 1911 to 1913. 
 Bull. 85, U.S. Bureau of Mines, 1914, 44<> ppp, Describes methods of 
 collecting and analyzing samples of coal. 
 
 302. _ ,, and Smith, H.I., Paul, W.J. and Sanford, Samuel. Analyses 
 
 of mine and c^r samples of coal collected in the fiscal years 1913 to 
 1916. Bull. 123, U.S. Bureau of Mines, 1917, 456 pp. Give analyses and 
 describes samples. 
 
 303. Fischer, F. Preparation of ore sauples for analysis. Stahl and Eisen, 
 
 vol. 32, 1912, pp. 1408-1409. Cnem. abst . , vol. 6, 1912, p. 32^6. 
 Points out necessity of fine crushing and recommends at least 8 mean 
 (493 holes per sq.. cue.). 
 
 304. Fischer } F.W, Flue-^as collector. Power, vol. 42, 1915, pp. 489-40, 763. 
 
 Describes an inexpensive ana portable sampler for flue 
 
 305. Fitch, E.O,,Jr. How vanadium affects pig iron; a series of . tests on five 
 samples of commercial pig iron containing vanadium. Iron Trade Rev., 
 vol. 55, 1914, pp. 72-74, Describes making of test bars. 
 
 -25- 
 
306. Fleming, tt.H. Determination of oxygen in iron and steel; va3ue of existing 
 
 aethods for det jri:.ir,ut:lon . Proc. An., 3oc, for TortvAi. Materials, vol. 13. 
 1913, pp. 4-76-^cjb; abr-,tr. in !~?r. Trade Review, vol, i? 5, lvj-5, rp. 120- 
 130. Discusses methods of sampling and fa ive3 micro-photographs of sections 
 of iron ingots, 
 
 307. Flint, H.P. \Viro sanplar for cyanide solution, n, , and Mm. Jour., vol. 
 
 95, 1913, p. 70:?. Describes Apparatus, 
 
 30o. Fcote, F.W. Cornwall autom./.tic satr.pler. En L , and Mi n. Jour., vol. 10^, 
 , p. ISOo . sampling fallin^ ore that has p-.ssed rolls. 
 
 Doep-lsvel developrsent at nspen, Colo. Eng. and Min. Jour., 
 
 vol. 10<5, 1919, p,, 176. sampling in Su-ug^ler Leasin 
 
 Sample bags and sample filin-. En^. and Min. Jour., vol. 100, 
 115, p. 58. Describes canvas bat.s. for Carrying saa_ les ana rack for the 
 
 311. Forbes, C.R. Bibliography of Mining. Min. Inu. , vol. 21, 112. Gives 
 
 bibliography for 1^12 on sampling and valuation, pp. 912-913. 
 
 312. Forbes, D.L.H. Treatment of complex silver-ore at the Lucky Tiger mine, 
 
 El Tigre, Sonora, Mexico. Trans. Aiu, Inst. Min. Eng,, vol, 4-3, 192.2 , pp. 
 471-511. Describes breaker plant and sampling device with figure of 
 latter. 
 
 *** ____ _ . Treatment of gold ore at Doa ; e mine, South Porcupine, Ontario 
 Can. Min, Jour., vol. 35, 1914, pp. 77-35, Describes methods of sampling 
 and weighing, pp. 83-84. 
 
 314. Forster, K, Prcbenehmen und Erzreservenberuteilung in den Goldfeldern 
 
 Transvaals. (Sampling and analysis of ore reserves in the e old fields of 
 the Transvaal) . Discusses sampling and estimating ore in place in the 
 gold fields of the Transvaal. Met&ll. & Srz, vol. 11, 1914, pp. 
 
 31o, Foster, C. Le Neve, Treatise on ore and stone minin , 1910, 799 pp. Dis 
 cusses sarnplint, pp. 676-680. 
 
 316. Foster, T.J. Coal and metal miners pocketbook. 10th. ea., 1*05, 637 pp. 
 
 Discusses sampling and estimating the amount of mineral available, P p . 
 251-252. Sampling coal, pp. 173-174. 
 
 317. Francis, W.H.S.. Francis automatic pulp sampler. En e . and Min. Jour., vol. 
 
 102, 1916, pp. 427-426. 
 
 31o, Frazer, J.C.W, and Hoff .ran, E.J. Apparatus and methods for the sanipU* L ana 
 analysis of furnace gases. Bull. 12, U.S. Bureau of Mines, 1*11, 22 pp. 
 Describes methods of taking "continuous" am" "instantaneous" samples ana 
 the special apparatus designed for such sampling. 
 
 318. ( a ) Frear, William, and Erb, E.S. Stuay in soil sampling. Jour. Assoc. 
 
 f, Agr. Cheui., vol. 4, 1920, p. 9b, Influence of method of collecting 
 sampling soil sercples has upon the values obtained in their analysis 
 is sho^wi by results obtained in the analysis of different sets of samples. 
 (Penn. Agr. Expt. Station). 
 
 -26- 
 
9. Frerrch, A.T. Sampling ore. Win. and Sci < Press, vol. 97, 1908, p? . 666- 
 667. Defends coning and quartering against alternate shovel o^h;,a. 
 
 :0 Tuchere, Leon. Sac.plin b . One of 42 lectures printed on varicn? subjects 
 by different engineers for instruction of employees of Copper Queen 
 Branch, Phelps Dodge Corp., Bisbee, Ariz., 1J19. 
 
 51. Fuld, H.A. Inaccuracies cf churn-drill sampling, En, and Mm. Jour,, 
 
 vol. 69, 1910, p. 953. Gives experience in prospecting copper deposits. 
 
 22. Fulton, carles H, Buying and sellin^. ores and metallurgical products. 
 
 U.S. Bureau of Mines Technical Paper 83, 1915, Sampling, of ores ais- 
 cussed . 
 
 23. ______ _. Manual of fire assayin L . 2d ed . 1911, 219 pp. Dis 
 
 cusses sampling, pp. 36-41. 
 
 24. Furxan, H. van F. Manual of practical assaying, 1=10, 530 pp. "Ore 
 
 sampling ", pp. 6-20, 420-421. 
 
 25. Fyfe, Alex. Metallurgical process of the V/aihi Grand Junction, New Zealand 
 
 Trans. Aust, I. M< E. f vol. 16, 1912, p, 64. Sampling, of the silver- 
 .ola ere before milling,; samplers ara used. 
 
 26. Gahl, Rudolf. History of the flotation process at Inspiration, Arizona. 
 
 Met. and Chera. En . , vol. 15, 1^16, pp. 393-405. Describes sampling of 
 oreboaies t.o determine if the ere could be treated by flotation. 
 
 27. Gale, Hcyt S. Saltpeter in Guatemala. En^ . and Min, Jour., vol. 107, lily 
 p. 1025. Sampling with auger. 
 
 i26v Gardiner, ft .H . Geld dredging. Actual recoveries compared with estimates , 
 En&. and Min. Jour., vol. 110, 1920, p. 515. Samplin^ ^ravel by churn- 
 drill, and factors against accuracy. 
 
 Garlick , E.T.M, Graphic c.ethcd cf computing mine values. Tr^s. ^ 
 I. M. E., vol. 15 (1), 1911, p. 91. Cutting samples and corr-putint values. 
 
 Garthwaite, E.H. Mine Sampling. Eng, and Min. Jour..,, vol. 79, 1905, p. **30 
 Describes Sriiple catcher for inaccessible stopss and hi^h drives. 
 
 . Scne sampling results. Trans, Inst . Min. ana Met., vol. 
 
 16, 1^06-07, pp. 171-1-0; discussion pp. 10-1*4. Discusses proper dis 
 tance between ^ine sauples, especially for ^ol l veins. 
 
 Gas Ave. Auto.uatic coal crusher and sampler, vol. 39,. 1917, p. 656. De 
 scribes and illustrates the machine. 
 
 (a) Gavin, M,J. Mining oil-shale. Prcc. Am. Min, Congress, vcl. 24, 
 1921, p. 497. Difficulty in sampling shale, and core-drilling suggested. 
 
 (b) . Oil- shale: history and technology. Bureau of Mines 
 
 Bull. 210, 1921. Saujplint. and testin L of shale discussed, incluain fc a 
 hint to take samples f ro* belcw expo sea surfaces. 
 
 -P7- 
 
 *- * 
 
333. Gavin, M.J., Hill, H.H., and. Perdew, V,,E. Notes en the oil-shale inaustry 
 
 Bureau of Mines Serial Kc 2256, 1921. Considerable care is required in 
 sampling shale deposits. 
 
 334, Geisiner , E.S. Ramsey mine- run sampler, Coal Age, vol. 11, 1917, p. 60S 
 
 Device consists of a scoop, 13 ft. lonr , made from 16 in, wrct pipe. ^ 
 slot, 3 ft. long, is cut cut at the top half at one end, ana when pushed 
 by an under stream of ccal it will collect a 100-lb. sample. 
 
 Sampling placer ground. ^ nb% gj^ uin. Jour., vol. 91, 1911, 
 
 p. 3<*5. Criticizes method described by TL. parter, 
 
 336. Geissler, . The Geissler sai..pling machine. Eng. and Mi n. Jour., vol. 69, 
 1900, p. 113; Colliery Guardian, vol. 79, 1900, p. <62; German patents 
 100, 067, 1893 and 100, 516, lob>8 . Describes a machine for saJiplin fc ail 
 kinds of ores as well ?.s coke, phosphate, salt, soda, and cement. 
 
 336. (a) Geirmoll, R.C. Mine sampling. Eng. and- Min. Jour., vol. 76, 1903, pp. 
 
 497, 537, 768, 996. Quartering samples underground.; sample-bat s; sample 
 report book. 
 
 337. George, vY.H. Moisture in blast-furnace coke., Jour. Soc,.Chem. Ind., vol. 
 
 38, 1919, p. 394. Describes method and precautions needed in obtaining 
 a representative sample. 
 
 333. Glenn, William. Sampling c-.rgoes cf ore. Jour, Soc. Chem. Ina., vol. 17, 
 1893, pp. 123-124. Discusses methods. 
 
 33i?. , Sampling ores without use of ubachinery. Trans. Am. Inst , 
 
 Min. Ent., vol. 20, lci?2, pp. 155-165; En^. and Min. Jour., vol. 52, 161, 
 p. 195. Description and discussion of hand sampling. 
 
 340. Gocdale, S.L. Argo cyanide iiill, Idaho Springs, Cclo. Ent,. ana Min. Jour., 
 vol. 96, 1913, pp. 3^5-339. Describes sampling plant and methods used, 
 p. 3c6. 
 
 Milling practice at the C*mp Bird, En^, and Min. Jour., vol. 
 
 79, 1905, p. 651. Describes autcu^atic saaplor used at the uiill of the 
 Camp Bird .line, Ouray, Colorado. 
 
 342. Gould, H.W. Alnaden quicksilver nine in S#ain. Min. and Sci . Press, vol. 
 122, 1S21, p. 566. Saiuplin fc methods for cinnabar. 
 
 342. (a) Gouyard, G.M, Mine sampling. Eng. and Min. Jour,, vol. 76, 1903, p. 
 
 229. Different assay from samples quartered on canvas. 
 
 343. Grabill, C.A. Ore buyin L in Mexico, 5hg. and Min. Jour., vol. 109, 120 , 
 
 p. 634. On the cover is a map of Mexico showing positions of the princi 
 pal smelters, at which ere sampling plants. 
 
 344. __. Ore contracts, Eng. and Min. Jour., vol. 10, 1919, p. ,-05. 
 
 Discussion cf clause regarding sampling. 
 
 345. Graham, Thomas. Gaseous mines in Crow s Nest .Pass field, B.C. Proc. Mine 
 Inspect. Inst., June, 1^16, abstr. in Goal Age, vol. 10, 1916, p. 21. 
 Illustration of vacuum bottles for collecting samples of mine air, 
 
 -28- 
 
346. Gray, Thomas. Automatic gas-sar.pling apparatus, with some observations on 
 
 sampling gas. Jour. Soc. Cheu. Ind., vol. 32, 1?13, pp. 109J- *4; a v -sh, 
 in^Gas^Wcrld, vol. 5S, 1913, p, 363; ana. in Jour, of Gas Li^in u , vol. 
 1S4, 1913, pp. 49-i?oO, Describes apparatus and method for sa^p^in^ 
 industrial gases ^nd gives experiments to test the accuracy of the method, 
 
 347. Grease s-V. alker, A.F. Testing clay properties. Brick and Clay Record, vol. 
 
 49, IS 16, pp. 10:3-1035; vol. 50, 1917, p; . 35-36, 
 
 34^. Green, R.I. Constant errors in sampling. Min. and Sci. Press, vol. 7, 
 1308, pp. 524-525. Discusses advantages of grading ore for shipment, 
 
 |349. Greene, F,T. Mine sables as baggage. NSLn. and Sci. Press, vol. 114, 1917, 
 p. 722. Cites case cf railroad accepting s-unples as baggage. 
 
 J50. Gregory, T.V..D. Notes on s:nplin L . Colliery Guard, vol. 109, 1915, pp. 
 
 1168-1169. Discusses uethcis of sailing coal seans, mine air, and water. 
 
 351. Griffin, M.L. A mathematical view of sampling with reference to the decree 
 of accuracy at tainea. Jour. Soc. Cham. Ina., vol. 28, 1909, pp. 192-194. 
 Discusses number of samples necessary tc obtain accurate inf eruption. 
 
 , . _ . Standard methods of sampling: a review with some suggestions. 
 Jour. Soc. Chem. Ind., vol. 24, pt. 1, 1905, pp. 183-155. Reviews ad 
 vance of sampling during the previous 25 years. 
 
 53. Grout, F.F., and Soper, E.K. Clays and shales of Minnesota. U.S. Geol. 
 
 Survey Bull. 673, 1919, p. 45. S^plin te clay by cutting groove ana by 
 2-in. auger holes. 
 
 54. Grunow, W,R. Churn-drill prospecting at Mcrenci, Ariz. Eng. and Min. Jour., 
 
 vcl. 101, 1916, pp. 969-974. Describes methods of sampling ana illus 
 trates an automatic sample splitter and a stove for drying, samples. 
 
 55. Guess, G.A. Notes on pyritic smelting. En . and Min. Jour., vol. ^3, 191^, 
 
 pp. 113-117. Discusses samplin b blast-furnace gases. 
 
 56. Gunther, C.G. A device used in sampling untimbered shafts. Eng, and Min. 
 
 Jour., vol. 82, 1906, p. 247. . Describes a sampler s seat in which he can 
 be raised or lowered while working, 
 
 57. _ . Examination of prospects; minin& geology. 1912, 222 pp. 
 
 Discusses sampling, pp. 12-19. 
 
 58. Hahn, O.K. Development of silver smelting in Mexico. Trans, Inst. iViin, and 
 
 Met., vcl. 8, 1099-1900, pp. 231-299; discussion, pp. 299-303. Describes 
 sampling department at a custom shelter, pp. 2<l-247. 
 
 59. Ealdane, J.S, Methods of air analysis. 3rd, ed. 1920, pp, 137. Collection 
 
 cf samples pp. 1-8; keeping samples, p. 75. 
 
 -29- 
 
360. Haloy, C.S. Relative error in alluvial sai^plin^ Min. and Sci. Press, ,vol. 
 
 Ill, 1915, pp. 73-80, Criticizes a^thods sampling i,olo.. gravel. 
 
 361. Haley, D.J? . Sa^plin^ by machine. Eng. and Min * Jour., vol. 87, 1909, 
 
 p. 362. Discusses article by J.A. Church, En 6 . suu. Min, Jour,, vol. 37, 
 1908, p. 113. 
 
 362. Kaley, J.F. Churn-drill prospecting in the Joplin district. En b , ana Min. 
 
 Jcur., vol. 9, 1910, p. 1150-1151. Describes Bethel of drilling ana. 
 .device for sampling cuttings. 
 
 363. Hallett, S.I. Autocue sampler at the Smuggler Mills, Aspen, Colorado. 
 
 Min. and Soi. Press, vol. 83, 1901, p. 55, Describes teeter-box sampler 
 with pneumatic check, 
 
 364. ____ .. Method of cine sai^plinr. Min. and Sci. Press, vol. 86, 1903, 
 
 pp. 21-22. Gives advice and suggestions for sataplin^ and valuin^ ore in 
 mines. 
 
 365. Hammond, H,0. Snelter lab. of United Verde Extension. Eng. and Min. Jour., 
 
 vol. 110, 1920, p t 991, Brief descriptio n and plans showing how samples 
 are handled, 
 
 366. Hance, J.H. Segregation in gold bullion. Min. and En L . . World, vol. 44, 
 
 1915, p. 601; Bull. Am. Inst. Min. Eng., vol. 54, 1916, pp. 506-540. De 
 scribes sampling by chippint drilling and dipping,, p. 507, 
 
 367. Hancchett, F.3. Daily sampling in square-set mining Arizona. Min* and En 6 - 
 
 World, vol. 45, 1916, pp. ^49-950. Describes methods. 
 
 36o. Handy, J.O. Sampling and assaying of silver ores, containing cobalt , 
 
 nickel arid arsenic. Original coi^mni cat ions, 6th, Int. Cong,, Applied 
 Chem. , vol. 3, 1912, pp. 69-95; abstr, in Jour. Soc. Chen, IncL., vol. 31, 
 1912, p, tSO. Discusses uoisture sample, sampling low-^rade and high- 
 grade ores, and methods of assaying. 
 
 369. Handy, R.S. Calculation of recovery in concentration, En e . Min. Jour., 
 vcl. 90, 1910, pp. 301-302. Coapares tirue sampling favorably with 
 Hoover s fornula for percentage recovery. 
 
 3?0 . _ _. Treatment of tailin^ and ore in Sweeny cill, Idaho. Min. and 
 Sci. Press, vol. 119, 1919, p, 239. Sailing a duqi of 1^200^)00 tons of 
 lead-silver tailing. 
 
 V 
 
 371. Hanks, Abbot A. Improvements inassrying. Min, and Sci. Press, vol. 102, 
 1911, pp. 662-664. Describes preparation of ore samples fcr fire assay. 
 
 . Sampling and analysis of chrcmte. Min, ana Sci. Press, 
 
 vol. 117, 1915, p. 654. Preparation of sables for analysis. 
 
 373. Harbord, F.W. and Hall, JJ/. The metallurgy of steel. 5th. ed. 1*16, 2 
 vols. 522 pp. Describes sanplim basic process c.etal, p : ; 66; sampling 
 steel for cicroscrpic exaclnaticn 466-469. 
 
 -30- 
 
374. Harding, J.E. Calculation t^ an*ge and grade froui ^nil-hold samples . Mm. 
 and Met. No. 16o, Dec. 1:>20, t ; 3s Me the a, of es it 
 
 375. Harp, C.C. Sa^plim coal deliveries. Ration*.! En:.., vol. 20, 1*15, pp. 
 421-423. Discusses factors in aete raining value of coal, import -nca of 
 representative sai-ples, collecting ana .preparint samples and nanal in- of 
 final saqplas. 
 
 37b. Harrington, Daniel. Dust control ana ventilation in iaetal imnes, En^. aijci 
 Min. Jour., vol. Ill, 1921, p. 73s. Kow air samples ara obtained. 
 
 37.7. _. Ventilation in a.etal nines; a preliminary report. 
 
 Bureau of Mines Tech, Paper ^51, 1921, How samples of taine air are taken, 
 
 376^ Karris, C.M. Pr -spectin^ in Western Austr-.li~. Bull. Inst. Min. ana Ifet . 
 Abstr. in Min. Mic,,, vol. 21, lUb, p. 30*. Discusses sa^plin^ metiiovis 
 fcr placer ores, 
 
 379. Harris, F.S. How ^ines should be examined.. En 6 . and Min. Jour., vol. 70, 
 1*00, p. 603. Cogent s on article by O.K. Packer. 
 
 3oO. Hartley, Carney. Churn-drill saniplin b . Min. and Sci , Press, vol. 9o, 
 p. 54. Cotonents on article by W.E. Thome. 
 
 Karvey, Alfred. Automatic ore saaplin t . Min. and Sci. Press, vol. 36, 
 pp, 7o-7b-, Describes and ^ives plans of an autv^matic ore sampling plant . 
 
 Autonatic ore sajapling, Min. and Sci, Press, vol. 36, Ii03, 
 
 Pp. 367-36 ^. Describes the Vegin and th<j New Brunton saEplin^ machines. 
 
 3S3. Hastings, J.H. Sampling and analyzing zinc ores and products. En, and 
 Min. Journal, vol. 104, 1&17, pp. 163-165. Gives suggestions for s^p 
 ore in place, old duups, i^ill and shelter feed, concentrates ana spelter. 
 Gives methods in vc^ue. 
 
 304. Hastin fc s, J.xi. Saiiipling of lar^e low-grade ore-bodies. Min. and Sci. 
 
 Press, vol. 114, 1917, pp. 379-360. Suggests a* t hods for dine sapling 
 and uiill tests on uiine samjles. 
 
 305. Haul tain , H.E.T. Notes on sau,plin fe . Can. Min. Jour., vol. 31, 1*10, pp , 
 
 356-360. Discusses quartering down, sp.npling porcupine ore boaics, ana 
 principles of sampling. 
 
 386. Hazard, F.H. Device for splitting pulp samples. En^. and Min. Jcur,, vol. 
 
 b3, li>12, pp, 10C;-110. Describes trou^ns for splitting net sa^plas. 
 
 387. Heath, G,L. The analysis of copper and its ores and alloys. 1916, 252 pp. 
 
 Discusses saaplifig and crushing, pp. l-i-36. 
 
 ;S, Heathccte, C.S. Automatic ere sfittpljr. Jour. Chamber of Mines, Western 
 Australia, Mar. 31, 1906; abstr. Eng. ana Min. Jour., vol. 66, 1906, p. 
 1^1. Describes a sampler with a revolving, ar- carrying a tri^pin fe bucket, 
 ReserLbles Bretherton s patent, 
 
 -31- 
 
389. Heiielbeiv, F.rv.. A portable w?_ter sailer. Enu. snu Min. Jour., vcl, 10,3, 
 , pp. 3-*.3-5<*i. Describes portable u.ine-ditcn sanpl^r. 
 
 30. Bailor, A,H. Flotation at the Afterthought /line, Calif. Min, and Sci, 
 Press, vol. 119, !&! , p. lol. Flow- shoe t shows position of automatic 
 sandier. 
 
 3r,l. Heriy, J,A. Sac-.-lia-, ore in tunnels, En<^. ana Min. Jour ., vol. !, 1^11, 
 
 p. 79c . 
 
 3iz2. Herict, E.iVI* Ore dressin t , at Glaus thai, Geriuany. JEn& and Min. Jour,, vol. 
 100, ls>15, pp. 42o-<2;7. Gives sketch of sailing plant. 
 
 . Herein. H. Intensive boring- on the Vontha L ^i coal field, Victoria. Proc. 
 Aust.I. . M. E. , No. 32, 191s, p. 145, Over 300,000 ft. of boreholes vrere 
 put down to test the ccal in 11 years. 
 
 . Heron, C.M. Mine s -splint at El Ti fo re; Mexico. En... ana Min. Jcur 4 , vol. 
 ^o, Ibl*, PJ_.-. 155-153. Describes develop^snt and stops ScU -plin t ana the 
 keepin c of records, 
 
 3c;5. Herr, Irving, Sa.vlint;. placer-gravel deposits. En^ . and Min, Jour <} vol. 
 103, li>16, pp. 261-262, Describes a t_ethoa ?.nd &i\ r <3s sketch of gravel 
 field and drilling plans. 
 
 . Souie observations en sailing, En^. ana Min. Jour., vol. 102 
 
 li?16, pp. 1015-1017. Discusses errors in 
 
 3i>7. Herrick, H.N, Valuation cf dred: inc. trcuna. Min. anu. Sci . Press, vcl, 
 1^14, p\ 6c/2. Drill-hole samples calculations. 
 
 3i-j. Hersa^. E.A. Principles in the practice of sau^lin t . Min. and En fc . V.crld, 
 vol. 35, 1^11, pp. 1054:-"105c5 . Discusses ,.;rinciples of s a splint, especially 
 the element cf chance. 
 
 3SS, Herzig, C.S. Mine sampling. En&. and Min. Jour., vol. 7 , 1934, p. 561, 
 
 vol. 7 ^, 1905, p. S3. Describes the use cf a canvas cucket in place of a 
 sampling box. 
 
 Mine sampling ana valuin^. A aiscussion of tne ^eth-as usea 
 in san-.pling ana valuing ore aepcsits, with especial reference to the work 
 of valuation by the independent engineer. Ea. cf Iblft, 163 pp. 
 
 401 - __ Ore in sifcht. Min, ana Sci. Press, vol. 102, 1911, pp. 265- 
 267. Discusses ^ine valuation ana. tne p -.rt played in it by the hu^ian 
 factor. 
 
 402 ___ Results fron.sau.pl int.. Min. toa b . , vol. 3, 113, pp 
 
 Discusses errors .^aae by four en^inosrs in v^luin t tne sa,..e uiine. 
 
 4 3 - -- - Valuation cf dred^ir,^ ground. Min. ana Sci. Press, vol. 10, 
 , p. 563. Placing drill-holes ?.rid calculating results of s 
 
 -32- 
 
104. Hess, P.L. Tungsten amoral 6 and deposits, .oull. ^2, U.S. Geol. Survey, 
 1917. Sampling and testing of t,i 
 
 405. Eig^.ins, Edwin. How snail we ^et tanin^ efficiency? 3Jn L . ana Min. . T o ur., 
 
 vcl, lOb, 1^20, p. 13sc. Query 13:: ?.sks , "Are s^plin^, and e.3-s<,-y- - r fe 
 properly correlated, sc that resulos are obtained with a udni._ui_ of 
 delay? " 
 
 406. Highar., James. An automatic pulp sampler. Proc. Cheui. and Mot. Sec. of 3. 
 
 Africa, vol. 4, 1903-Qi, pp. 232-235; Min. and Sci. Press, vol. o7, 1903, 
 p. 222. Describes a machine for sampling mill pulp and tailings. 
 
 407. Hill, H.H. and Dean, E.V, . Quality of Baseline ^.arketel in the United 
 
 States.. Bureau of Mines Bull, ltd, li?20. Met nod of collectin^ samples. 
 
 B; Hillebrand, V, .P. Standard methods of saivli n _- ?- &-> analysis and standard 
 sample s. Jour. Ind, and Eni. Ci:em., vol. 6, 1^16, pp. 4*b? *c.. Gives 
 principles and criteria for 3c .:;.plin t .,, Gives oiblio^raphy of raethods for 
 sar.plina a variety of articles approved by the U.S. Government and 
 scientific and technical organizations. 
 
 -J. Hills, V.G. Mine sailing. Trans. Can. Min. Inst., vol. 17, 1*14, pp. 
 
 262-274. Discusses size and reduction of sables, keepin^ of notes and 
 recvrda, inch r^3asureDents, bunched samples, -^nd. selective 
 
 ^ . Tailing samples. En^. ana Min. Jcur., vol. o , lt/l*, p. 31o. 
 
 Discusses advantages of the water-cox saopler. Co^.ents on article by 
 L.U.N. Judell. 
 
 411. Hintz, E. Bericht aer Unterkoiai dssion fur die Bearoeitun^ der Eisenerzan- 
 alyse. Zeit, fur An$r.we. c^e^-ie, Jahr. 27, 1, li?l^, pp. j-ll; Iron ores: 
 Heport of the CouLiittee on ii^thods of analysis, Vermin Deutscher Cheu^ker. 
 Abstr., Jour, Soc. Checi. Ind., vcl. 33, llft, p. 13o Discusses prepara 
 tion of saraples and ^ives directions for 
 
 412. HodL,e, W,E 4 Test-pit for duu-p sa^lin^,. En^. ana Min. Jour., vol. 2, 
 
 1S11, p. 1028. Describes method of driving pit into large au^ips. 
 
 413. Hoages, A.D. ,jr. Sampling and its importance; also on sampling placer nines 
 
 Eng. and Min, Jour., vol. 52, lri/1, p. 264. Discusses principles and 
 sainplint: fro^n wet batteries and descrioes placer 
 
 414. Hof man , H.O. laproveiLents in sairplin^, and assaying. Min. Ina., vol. 
 
 I ^OS, pp. 646-648. Reviews progress in sa^plin, ana assayin^ for 
 and references to periodicals. 
 
 415. Hofnann, Ottckar. Treatment at the Auburn mill, Wev. Min. and Sci. Press, 
 
 vol. 22, 11:71, p. 24-. Ssu^plint uiethods are covered. 
 
 416. Hciil, L.J. Valuation of dredgin b ground, Min. and Sci. Press, vol. 10, 
 , p. 4b3. Placing of drill-holes and calculations. 
 
 417. Holloway, G.T. Min. Jour., vol. 7i>, pp. 44-45. Gives tables for convert 
 ing percentages into ounces, or pennyweights, or grains ...er ton of 2240 
 Ib, and also per ten of 2000 ID. 
 
 -33- 
 
418. Holies, J. A. Sampling of coal in ** mine. Technical paper 1, U. S. 
 
 Bureau of Mines, 1911, 18 pp. Describes the sampling methods and. sampl 
 outfit devised by the U. S. Geological Survey and the Bureau of Mines. 
 
 419. Holmes, J. A., Franklin, E. C., and Gould, R. A. Report of Selby Smelter 
 
 Coii^-ission , Bureau of Mines Bull. 98, 1915, pp. 528. Numerous references 
 to sampling the atmosphere in the suiter zone. 
 
 420. Holt, Theo, P. Plant of the Tintic Milling Co., Utah. Min. ana Sci . 
 
 Press, vol, 120, 1920, p. 603. Sampling silver-lead ore. 
 
 421. Hood, K. K. curves for ore-valuation. Min. and Sci. Press, vol. 121, 1920, 
 
 p. 270. Graphs plotted from drill samples and assay multiplied by cer 
 tain factors. 
 
 422. Hooper, H. E. Mine sailing devices. Trans. Inst. Min. & Met., vol. 18, 
 
 1908-09, pp. 66-67; Min. & Sci. Press, vol, 97, 1908, p. 704. Describes 
 a sampling chair and a catching bag. 
 
 423 
 
 Test-pit sampling of placers, Eng. and Min. Jour., vol. 102, 
 
 1916, p. 222, Describes sampling alluviam worked for wolfram. 
 
 424. Hoover, Herbert C, Principles of Mining, 1st, ed. 1909, pp. 199. Sampling 
 
 includes ore in a mine and mill products. Chapter 1, on mine valuation, 
 discusses all phases of sampling, and calculations arising therefore. 
 Precautions against natural salting and intentional salting are given. 
 
 425. Hopkins, G. V, Buying and sampling ores and working mines on the tribute 
 
 system in Chili. Trans. Inst, Min. and Met. vol. 6, 1897-98, pp. 108-112, 
 Describes mechanical sampling as found in Chile. 
 
 426. Horner, R, R. Black sand deposits of Southern Oregon and Northern California 
 
 Technical Paper 196 U. S, Bureau of Mines, 1918. Methods of sampling 
 beach sands containing platinum. 
 
 427. Horwcod , c . B,, and Park.Mungo. Development -samp ling ando re- valuation of 
 
 gola mines. Trans. Am. Inst. Min. Eng,, vol. 39, 1908, pp. 685-6^4. 
 Discusses principles and methods. 
 
 428. Hotchkiss, W, 0. Exploration methods on Gcgebic range. Min. and Met. No, 
 
 163, 1920, p. 29. Difficulty in sampling iron ores. 
 
 428. (a) Hcwe, A. S. Mine sampling. Eng. and Min. Jour., vol. 75, 1903, p. 588. 
 
 Grab s.opling; rich streaks; and use of slide-rule. 
 
 429. Hughes, F, C. Sampling of ores and bullion, especially silver bullion for 
 
 Mint purposes. Trans. Min. and Geol. Inst. of India, vol. 2, part 1, 
 1907, pp. 57-70. Discusses methods ana devices. 
 
 430. Hulst, G, P. International Lead refining plant , Trans. Am. Inst. Min. Eng., 
 
 vol. 49, 1914, pp. 532-538; discussion 538. Describes sampling kettles 
 and method of sampling 
 
41. Hunt, <<. /,. Mtnuf*ctur of st*l r*ii. Bull. 153, Se x ,t . l^lb, of A. 
 M. &. M. 1., ,>, 33*. , -.is by d 
 
 42. Buntoon, L.L. Accuracy of L*C. - - -if fie ore samplers. 
 
 Win. Jour., vol. 00, U10, .Ascusses requir 
 
 cal ore samplers and the cauao ~f *n accurate results wit it, riff 
 ., -ros wet and dry screen tests. 
 
 . Faulty si^lin^ devices. i.n : . ar. . L. . J -ur., vcl. 
 p. 159. V/arns against simple lo-kin__ oevice thit fails to t-Jcs a fair 
 sample cf 
 
 __ . Pre^arati on cf &ssay s ?-!,.. lo a. In- . -- -- - ?, 7 - - -- 
 
 1 Jll, p. 12*. Gives .-etnods of reiucinj, l^.r^e mechanical 
 assay i-ul^s so as t avci^ inaccuracies. 
 
 35. ________ . Pre^annc, ana roccrdin^ s^vl -irs for use In teen/. 
 
 laboratories. Trans. , As- Inst. :::. .. Z. . . , vl. 40, 19C-, 
 
 Liscussos 7/ewey iecical system of recrrds ana the use ?f index ar.- assay 
 
 cards. 
 
 36. ____ . St?. _ r --alls,in 1^10. 2n e . ana. Min. Jour. , v 1. 1, lill f 
 p. 45. Cost of sii^plin b was 1/4 cent ^er ton when treat in & SCO: -:..- 
 daily. Charge f.r custc iin^ was 80 tc 22 cents _.er 100 tens cf ~ 
 
 t37. Eut chins, J.P. ana Stines, N.C. S = _;/-i. .i placer grjurxi.. 14in. anc. 5ci. 
 Press, vcl. 102, 1*11, pp. 2^2-294. Describes haniline, -; 
 
 it is pu^ e ^ vip . 
 
 37. (a) Button, G.H. Placer jrcspectir.^ . ractice. atin. ana Met., So. 1" 
 
 1921, p. 15. Sasplin^ ^etr.c.z : today are little changed froi. 10 years 
 ao; sailing and actual recoveries often vary widely; sugtestiLns saoe 
 for different ^ethci cf calculaticn cf estimates. 
 
 57. (b) _ . Valuation rf ^lacer deposits. 24in. and Sci . Press, 1r6l. 
 
 123, Ib21, p. 365. Methods of sai.. li .-.._ , calcriiaticns and discrepancies 
 betveen sailing and actrtial 
 
 Ingalls, V7.R. Methods cf nine ex^-i. :i n. Eng. and Ifin. Jcur., vcl. 70, 
 1SOC, pp. 753-754. Coc^ants on article fcy O.H. ??.c--ier. 
 
 53. Icnides, S.a, Continuous sulphuric aci- Si_;l5r. Chen, and Met. Sng., 
 vcl. 2C, lili-, .. 38. 
 
 Iron an- Cral Trade Review. Staz.r-.-.riization cf coal sampliog. Vol. j 
 1913, pp. 574-575. discusses colliery, eaxi.b, bnoker, truck, and C=L_ 
 ., also labcrat ry treatment of sas-cls. 
 
 Irvin, I.F. Adequate s^Arllr.^ i.: _r-ern -11 practice. ia.n . ma 3::. Press, 
 vol. 1C6, 1^13, po. 514. lifjMs;,? .r.~ =ir^lin of san- , :: - -1- i^ 
 cf t^ilir^s with i... rat. 
 
 Cyanide plant acccuntin. Kng. and fin. * r. vcl. &7, 
 
 pp. ^7-8*9. Describes saaplin^ methods used at a cyuii : .= ;1 
 
 
443. Jacklin b , L. The Republic sampling and reduction works. Min. and Sci. 
 
 Press, vol. ol, 1^00, ^ 372. Describes plant at Republic, Washington. 
 
 444. James, G.A. Contamination of laboratory samples by iron derived from 
 
 crushing nachinery. Chern. Engineer, vol. 14, 1911, pp. 3oO-3d. 
 
 <t45, . Moisture as a source of error in a.ssay reports. Eng. and Min, 
 
 Jour., vol. 90, 1913, pp. 1047. Discusses importance of keepin^ samples 
 dry. 
 
 4<*6. _ . Salting of sarnies and means of detection. Min. and Ent-. 
 
 7?orld, vol. 36, 1912, pp. 1099-1100. Gives causes of innocent salting. 
 
 447. Jania, F lie Erzprobenahme uni die Zurichtun^ ctes rurchschnit csr-usters 
 
 fur die che.rdsche Analyse. (Sampling, and the preparation of samples for 
 chemical analysis). Oestsrreichische Zeit* fur iierr.-und Hutteriweoen, 
 Jahr. 52, 1904, pp * 547-549, 561-564, 577-580* 
 
 445. Janin, Charles. Gold dredging in the United States. U.S. Bureau of Mines 
 
 Bull. 129, l^lc, p. 160 to 192, Sampling and calculating value of places 
 ground; theoretical value and actual yields. \ 
 
 448. (a) _ _ . Mining Engineers Examination and Report Book* 1st. ed. 
 
 113. Instructions for sampling fully covered. 
 
 Sampling placer ground. Eng. and Min. Jour., vol. 91, 
 
 1911, p. 754. Criticizes caethod described by T.L. Carter. 
 
 -50. Janin, Charles, and Winston, W.B. Gold dredging in California. State 
 
 Mining Bureau Jull. 57, 1910, pp. 312. Sampling placer ground by drill 
 ing discussed en 17 pa&es. 
 
 451. Jar^an, Arthur. Mining and treatment at the Talisuan uine, New Zealand. 
 
 Trans. Aust. I . M.E. , vol. 16, 1912, p. 359. Sauiplin fe in tne uine. 
 
 452. Jene, H.L. Mortar for laboratory crushint. 2n& and Min, Jour., vol. 37,1s 
 
 pp. 7c8. Describes device for coarse ore especially ore which is in 
 clined to fly durin^ crushing. 
 
 453. Jennings, R.C. Valuin^ placer ground. Min. and Sci. Press, vol. 10y, 1^1^ 
 
 p. 527. Lr ill -hole sample cp.lculations. 
 
 454. Jennies, S.J. Lar^e-scale sampling. Enp . and Min, Jour., vol. ?c t It>l4, 
 
 ^. 1138. Describes the taking of 30-ton samples at Juneau, Alaska. 
 
 455 _ ___ __ , Sauiplin b of low- fe rade ore deposits. Min, an.l En^. V/orld, 
 
 vol. 41, 1914, p, 10^6. Describes a method of sampling gola ore in Alasi 
 
 455. (a) Jenson, J.B, Petro-shales of the Western Slope. Proc. Am. Min. Con 
 
 gress, vol. 24, 1^21, p. 532. Prospecting and sampling should be aone oy 
 diamond-drills and tunnels. 
 
 -36- 
 
455. Johnson, P^ul. An automatic jystou* of s.^plin^. En^. ana Min. Jour,, vol. 
 73, li>02, pp. 51-i-olcj Abst. Je<;r Soc. Chem. Ind, , vol.21, !( , p. 7. ; , , 
 Min, Ind. Vol. ..11, 102; pp. -i^-430. .Lescrioes. 2. sampling mill and ap 
 paratus at Greenwood, .b 
 
 457, _ t __ . Ore sa^lin;, at 21 Paso, Texas. En^. tJid Mm. Jour., vol. 
 53, 1:S2, pp. Ill, 132. Liscusses methods of 8i .L. r lin ,in United States 
 and in Europe, 
 
 455. Journal of Canadian Minin^ Institute. Hecent developments at the Granby 
 shelter. Vol. 13, 1^16, ^ . 273-2i;7. Inscribes sampling methoas at vhe 
 works in British Columbia. 
 
 459. Journal of Industrial and En^ineerin . Chemistry. Tentative methoas for 
 sampling and an^lyzin^ coal. Vol. 5, 1^13, pp. 517-526. First report 
 of the cou^ittee cf the A^eric^i Society for Testing Materials. 
 
 _ ____ ; ____ ^ ____ _ Preparation of laboratory 
 
 __ 
 
 sarnples; cc^-uttee report. Vtl. s/ , 1&17, pp. 100-101. Jrom report of 
 the Joint CoLzz.it toe on coal analysis of the Anerican Society for 
 
 materials, 
 
 
 
 451. Judell, ( L.U.W. Simple, sampline device , En^, .anl Min. Jour., vol. *Q , 
 
 p. 1146. Describes a simple device for sauiplinr. jig- tailings. 
 
 p 
 
 462. ____ . Simple sampling device, Eng, and Min. Jcur , , vol. a7, 114, / 
 cccrnent, vol. ^v, 1914, p, 2i. Describes an automatic pulp sampler. 
 
 462. (a) Julian, H.F. and Smart, Edgar. Cyanictin^,. ^old ana. silver ores, 1st. ea. 
 
 1S04, pp. 405, Where samples may oe taken, sam^lin^ aumps, and lao, 
 methods, pp. b-17. 
 
 463. Jucn, E. Probenehnen in L etallur^ischen Betrieoen. (Sampling in metalluri- 
 
 cal works). Zeit. angew. Chemie, Jahr. 17, ly04, p. 1544. Discusses 
 ana methods . 
 
 464. Kahan, Ii.H Saaplin^, oullion. Jour. Chem, Met, ana Min,. Sec, S. Africa. 
 Abstr. in Min.. and Sci . Press, vol. 123, 1^21, p, 30, Discusses -dip 
 samples, end drilling of gold bullion, 
 
 465. Keene, J,P. Churn-drill gravel- sai^lin^. Min. ana Sci. Press, vol.. 
 1909, pp, 238- 2d9. Describes method of sinking the pipe to the bea 
 with little or no 
 
 465. Keety, T.F. Errors in mine sampling. En L . and Min. Jour,, vol. ^1, 
 p. 79b. Describes errors liaole in s r implin L erratic gold. veins, 
 
 467. Keighley, FC. Selection of coke samples for analysis. Proceea, Coal Min. 
 Inst. Am. 1^13, pp. 167-172, Su^c-ests methods for sampling c. ;ke for 
 deten:-inin the phosphorous present. 
 
 Keller, Edward, Distribution of the precious metals anu impurities in 
 copper and suggestions for a rational mode of sampling. Trans. AJI, Inst. 
 Min. Enc., vol. 27, Ic98, pp. 106-123. 
 
 -37- 
 
. Mathematics of copper sa^plin & , En e , and Min. Jour., vol 
 y3 1*12, op. 703-700, discussion, ^ . 729, 1213. Discusses interior 
 structure of cc^er OD.rs and aei-:onst rates how each separate hole can be 
 uiade to represent the average cf the oar in which it is placsa. 
 
 470, ____ . Mooility of gold in solid state. En b . and Min. Jour., vol. 
 107, 191b, . 35-, Ssuaplinfe copper plates containing gold, 
 
 471. . Principles and practice of sailing.. metallurgical 
 
 "with special reference to the sailing of copper bullion. U.S. Bureau 
 Mines Bull. 122, 1916, 102 pp. Discusses theory of sampling ana its ap 
 plication; describes procedure and equipment in detail. 
 
 472. 5 Sampling anode copper with special reference to mineral 
 
 content. Bull. AM. Inst. Min. EL., vol. 42, 1^11, pp. i?05-0o; Min. 
 Ind., vol. 19, 1910, ^. 797. Discusses William Wraith 1 s paper. 
 
 473. . Sampling metallic r.etallurgical materials (copper). U. S, 
 
 Bureau of Mines Bull. 122, 1916. 
 
 474. Kerns, R.W. International smelter at Mi aid. , Ariz. En,,, and Min. Jour., 
 
 vol. 101, 1^16, pp. 420-424, Describes sampler copper concentrates. 
 
 475. Kershaw, J.3.C. Fuel economy in the boiler-house. One-., and Met. En^., 
 
 vol. 20, 1919, p. 294. Sampling flue gases. 
 
 476. _ , Sampling, v. correct analytical results. Met, and Chea. 
 
 En fe ., vol, 17, 1917, p. 105. Gives principles of sampling. 
 
 477. _ fc . Scientific ruethcds of coal buying. Coal A^e, vol. 11, 
 
 1*17 , p. 3^7. An intelligent and reliable sampler is necessary, and with 
 two or three helpers csjn sample 1000 tons daily. Face and cargo 
 discusse d, 
 
 47c . Kiadie, Thoi^as. Causes of variations in ore sauiplint . Jour. Can. Mm, 
 
 Inst., vol. 13, 1^10, pp. 556-560; discussion, pp. 560-576; En-. and Min. 
 Jour., vol. 60, l0y, pp. 625-626. Discusses effect of size of ore on 
 results of saaiplin^ and analysis. 
 
 Screen analysis in sampling. n b . and Min, Jour., vol. 
 
 , pp. o25- Liscusses tests of samplin^ i^chines ana ^ives results 
 with Jones sai^pler and with riffle ana with cone 
 
 430. Kic.ball, J.P. Differential sampling cf bituuinous coal-seaiiis. Trans. Ai^. 
 Inst. Min. En b . , vol. 12, 1^34, pp. 317-349. Discusses structure of coal 
 seams and methods of sampling of aifferent state surveys. Gives plan for 
 differential sampling. 
 
 481. Kim., J.T. A laboratory sampler. Can. Min. Jour., vol. 36, 1915, pp. 
 
 112. Describes a rapid, accurate ana. efficient device for sampling finelj 
 round ore. 
 
 -38- 
 
Kin^,, LcM. Sampling and assaying a car of bonanza ore. ian. ana. Eci , 
 Press, vol. 9-s, 1907, pp. 241-2 -*i. Lascrices tne sc^jdi^ anci - ; . ~ ?". 
 of 50 tons of ere fro:^ GcldfielJL, #ov . , yieluin^ 60o 02, &old ar.o 7<* 
 oz. silver perton, equal to about. -$600,000. 
 
 Kirby, E.B, Sampling and iLeasure^unt of oreboaies in ^ine examination. 
 Min. and Sci , Press, vol. 71, 1*^5, pp. 368, 28-*, 300, 320. Fnt, . and 
 Min. Jour., vol. 59, lot?5, pp. 196-197, 221-222, 2V7-2-3; a-ostr .. Mines 
 and Minerals, vol. 20, 1699-1900, pp. 132-133. Discusses methods oi 
 san-pling and valuing ore in place, 
 
 Testin b and sau.plin^ placer deposits, Proc, Colorado Sci . . 
 
 Soc. , vol. 6, 1G98, pp. 166-190 ; abstr, in ]n b , and Min, Jour., vol. 68, 
 1899, pp. 130-131; Min. and Sci, Press, vol. 73, Io99, pp. 637, 666. 
 
 Kithil , K.L. and Tavis, J.A. Mining and concentration of carnotite ores. 
 3ureau of Mines jsu.ll. 103, 1917. Full aetails of sag.il ing methcas with 
 illustrations. 
 
 Kitson, A.E. bauxite in V. est Africa. Report of Geol. Survey of Gold 
 Coast for 1919, Sailing bauxite. 
 
 Kneff, C.v;, A sacylint cone. Jour. Ind. anl Erif., Che.ii. , vol. 4, lt?12, pp. 
 51:2-663, Describes a hopper through which the ore is run to prepare * 
 cone for quartering. The lumps and fines are well t.d 
 
 Knox, N.B, and Haley, C.S, Mining of alluvial iejycsits, II. Min. Ma^., 
 vol. 12, 1915, pp. 153-133. Discusses s-xiplin^, cy channeling ana by bulk. 
 
 Kreisinger, H. ana Ovitz, F.K. Sampling and analyzing flue gases. U.S. 
 Bur, Mines Uull . 97, 1916, 70 fp. Describes simple t^jparatus intended 
 for use of o.en in charge of boiler plants. 
 
 Lasarthe , Jules. Bunker Hill shelter* Iin. ana Sci. Prsss, vol. 114:, 1917, 
 pp. 155-156. Describes sampling cill for gola, silver, und lead ore. 
 
 Lach^und, Oscar. Best netnods of sruipling and marketing cres. Min. World, 
 vol. 34, 1^11, ^p. 402. Gives suggestions to ore snippers. 
 
 Lafferty, RF, Sampling dredging grounds. En L : . and Min. Jour., vol. 92, 
 1911, pp. 1023-1024. Discusses placer ground sampling, and irills. 
 
 Laist, Frederick, and others. Electro- lytic zinc plant of the Anaconda 
 Company. Paper if A. I. M, ana M. E., abstr, in Min. and Met,, No. loo, 
 Dec. 1?20, p. 36. Abstr. in Min. Jour. London, vol. 132, 1921, p. 207. 
 Sampling i^clten spelter frcui ladles. 
 
 Lamble, 3.C. s^pliflL afi ^- assayinr iLolybienua ores. Can. kin. Jour., vol. 
 37, 1916, p. lc?5. Describes coning ana quartering system in the mill 
 at Orillia, Canada, 
 
 Landis, E.K. Sampling iron-ore. Trans. Am. Inst. Min. En^., vol. 20, 1691, 
 pp. 611-513. Descrioes s^juplin/, car load lots by nand. 
 
 STATISTICAL LABORATORY 
 
 UNIVERSITY OF CALIFORNIA 
 BERKELEY 4, CALIFORNIA 
 
4i6. Lane, T.C. Mine salting. Mex. Min. Jour., vol. 12-13, 1*11, pp. 36-3*. 
 Describes frauds. 
 
 4*7. Lang, Herbert. Management of a country smelter. Min. and Sci . Press, 
 vol. 109, 1914, pp. 4^0-442. Discusses sau^lin^ and buyin c ores. 
 
 497. (a) Lan fe try, V/.D. Methods of coal sampling. Coal Industry, vol. 4, 1921 
 p. 556. Brief discussion on iu^ortance of sampling coal as an aid to 
 selling, with photographs of takin^ samples at the face and at a tipple, 
 and 32 views cf quartering a sample. 
 
 4S. Laschinger , E.J. New apparatus for sampling air for dust. Jour. Chem. 
 Met. and Min. Soc. S. Africa, vol. 12, 1*12 , pp. 443-446. Describes 
 device for sampling mine air. 
 
 499. Lathe, F.E. Recent developments at the Granby smelter. Jour. Can. Min. 
 Inst., vol. 13, 1910, pp. 273-237. Describes methods of sampling car 
 loads of copper-gold-silver ore, and gives diagrams. 
 
 4a9. (a) Lawrence , B.3. Ore in sitht. Eng. and Mm. Jour., vol. 75, 1903, 
 .p. 323. Use of the terns positive, probable, and possible ore. 
 
 .5.00. Lawrie, Thonas. Sampling ore received at the Sulphide Corporation s works 
 Australia. Proc. Aust~ I. M. E,, No. 31, 1*16, p. 4. Sailing con- 
 centrajes with scoops and ore by takin^ so many shovelfuls. 
 
 501. Ledoux, A.R. American methods of sampling ore and assaying copper. Min. 
 
 Ind., vol. 1, 1692, p. 143. 
 
 502. _ . Assays of copper ana copper matte, Trans. Aa. Inst. Min. 
 
 En fc ., vol. 25, ld^6, pp. 250-292; discussion, pp. 1000-1010. Describes 
 takin b samples fro^a car load of matte - samples of borings fro^ anodes 
 for series of assay tests, p. 250. 
 
 503. _ . Sampling argentiferous ana auriferous copper. Jour. Can. 
 
 Min. Inst., vol. 2, 1--9S, pp. 106-113; Discusses methods. 
 
 504. __ . Sampling ores of Cobalt, Ontario. Can. Min. Jour., vol. 30, 
 
 1*03, pp. 36c-3/^. Describes saLiplim methods for ore containing silver 
 in nuggets and small particles. 
 
 505. _ . Stories frcu a laborabory. En&. and Min. Jour., vol. 109, 
 
 1920, p. 130. Soi_e interesting history concerning British and American 
 sa*-.plin, of copper. 
 
 505. (a) Lee, C.E. Sampling ere in a aine. En^. and Min. Jcur. , vol. 75, 
 1903, p. 401. Sampling accessories - t a is moils, and tags. 
 
 506. Lee, C.V/*. Data of two experiments showing liquation in cyanide gold 
 Proc. Chem. Met. and Min. Soc. S. Africa, vol. 2, 1893, p. 801-603; 
 Jour., vol. I t Ij9 ; f p. 116. 
 
 -40- 
 
5C7. Leggett, T.H. Sampling large low-grade orebodies. Min. and Sci . Press, 
 vol. 115, 1917, p. 51. Compares ndll tests vs. moil-sampling and .con 
 cludes in favor of the latter. 
 
 508. Lejeune, A.S. Mine sampling and ore valuation with special reference^to 
 
 the Witwatersrand area. S. African Min.. Jour., vol. 22, pt . 2, 1^13, pp. 
 146, 179, 263, 292, 316, 344, 3cO, 439. Discusses apparatus, methods, 
 assay plans, calculation of ore reserves, sailing dumps, faulting of ore 
 veins. 
 
 509. Lenher, Victor. Contamination of laboratory samples by iron. Jour.^Ind. 
 
 and Eng. Che a. , vol. 4, 1912, p. 471. Describes experiments that showed. 
 samples to be contaminated* 
 
 510. LeRoy, E. A water-actuated sampler. Min. and Sci. Press, vol. 106, 1914, 
 
 p. 37c, Describes sampler of tiltin& box type . 
 
 511. Leslie, EK. Milling operations at the Commonwealth property, Arizona. 
 
 Min. and Sci. Press, vol. 106, 1914, pp. 722-730. Describes sampling 
 plant . 
 
 512. Leupold, H. Improved sand and slime samples. Proc. Cher:.. Met. and Min. 
 
 Sac. S. Africa, vol. 5, 1904-05, pp. 122- 13. Describes ^ethcds of 
 sampling to determine weight of slimes or sand in a large tank, 
 
 513. Levy, Ernest. Mine sarplin,. . Eng. and Min. Jour*, vol. 76, 1^03, p. 456. 
 
 In examining a partly-caved dine, don 1 t depend upon outside information. 
 
 513. (a) _, Sampling floor of a wet level. Trans. Inst . Min, and met., 
 
 vol. 13, 1903-04, pp. 145- 1*8; discussion, pp. l^o-loO. Describes diffi 
 culties and method devised to overcome them. 
 
 514. Lewis, R.S. Milling calculations. Che^. ana Met. Eng., vol. 20, 1915, 
 
 p. 229. Saa^ling pulp for specific gravity. 
 
 515. Lidaell, D.M. Influence of nudber of templet holes in samplin 6 copper. 
 
 En^. an! MB.n.-Jour., vol. 90, 1910, p. S53. riscusses effect of nuuier 
 of templet drilled holes on the silver assay of copper pib- 
 
 516, __ . Magnetic particles in copper bullion sampling. En^. 
 
 Min. Jour., vol. 90, 1910, pp. 752-3S3 . Discusses method of dealing 
 with magnetic particles in sampling copper bullion. 
 
 517. t _ . Metallurgist and chemists handbook. 116, 603 pp. Dis 
 
 cusses coal sampling, pp. 316-317, ana. weights to be taken in sampling 
 ore, pp. 314-315. 
 
 516. __ . Moisture in copper bullion. Eng. and Min. Jour., vol. 90, 
 1910, pp. 1095-1026. Describes tests to determine amount of moisture 
 present. 
 
 519. __ Salting assays by salted cupels. Eng. and Min. Jour., vol. 
 
 95, 1913, p. o35. Describes experiments to test the possibility of 
 salting with cupels. 
 
 -41- 
 
520. _____ . Saaplint and as saying in IvlZ and 111. Min. Ind., vo.Ts. 
 and 20, 1910 and 1911, pp 7^2-^06 ana : c5-d*s. Reviews articles cri 
 sampling for the two years and. ^ives short 
 
 521. ______ . S-:^lin & coke. Coal A_,e, vol. o, 115, p. 1-*!. 
 
 of proper sampling. 
 
 Sampling errors aue to copper bar shapes. En . ana Min. 
 
 ____ 
 Jcur., vol. 2, 1911, p. 1173. Reco.--u.ends a thin bc=r with a suAll bevel. 
 
 ^23. __________ . Short foruila f or samples cont^inin^. i-ietallics. Ent, . and 
 
 Min. Jour., vol. 90, 110. Gives foroila for deterr-dnin^, total per cent 
 of i^etallics thrown out at successive crushin^s. 
 
 52 ^- ___ ,. _. Top and botton drillin. in ^i^ copper* En._ . and Mm. Jour., 
 vol. 0, la10, pp. .b7-db:>. Discusses Differences in staples taken f roc. 
 top and frora bottom of the bar. 
 
 525. Lieban, G.O.A. Apparatus for taking core sanples of sli--.e deposits, etc, 
 
 gesundh. In^, vol. 43, 1920, p. 163. An iron trough, 25 to 33 inches 
 long with a cover is used, "tfhen forced down into thick sli.Le, vred^e end 
 down, by i-iearis of an attachment the other end is covered, and the sample 
 fro^a the particular point is brought to surface. 
 
 526. Lincoln, F.C. State Ore S?c.pler of Nevada, announces charges at the Kazen 
 
 sampler, and compares them with other works. En^. and Min. Jour., vol. 
 106, 1919, p. 745. 
 
 527. Lind b ren , J.M. Sampling and analysis of Illinois coals. Trans. A*:.. Inst. 
 
 Min. Em.., vol. 40, 109, pp. 17-24. Tiscusses n,ethoas of sac.plin,. stocK 
 piles, face sampling and keeping, samples. 
 
 528. Locke, C.E. School laboratory work. Sampling of an ore containing coarse 
 
 gold. Trans. An,. Inst. Min. En b . , vol. 45, 1*13, op, 251-255. 
 
 526, (a) Longridhe, C.C. Gold and tin ared_.inf, 3rd. ed., 1*14. Prospectin b 
 and valuing placers, p. 25, 
 
 529. Lord, N.tV, United States fuel-testin L plant at St , Louis, Ho. Bureau of 
 
 Mines Bull, 28, 1*11. Accuracy of aar samples, and moisture less in 
 samples . 
 
 530. Lori, N.W., Holies, J.A., Stanton, P.M., and Sanfora, Samuel. Analysis of 
 
 coals in the United States, with descriptions of ^ine ana fiela samples, 
 collected between July 1, 1*04, and June 30, 1?10. Bull. 22, U.S. Bureau 
 of Mines, 1:/12, 112^ pp. Describes i;etnods of collect in L an:, analyzing 
 sa*.,ples of coal . 
 
 531. Lorenz, F.H. Saltin c of ai.nes. Min. and Sci. Press, vol. 121, 1*20, p. 
 
 546. Putting gold into dynamite, or drilling minute noles in the face 
 and salting then.. 
 
 -42- 
 
532 . Lo::in fo/ V, .J, Sampling large lovv-grade orebodies. Min. Sci. ?res>o, 
 iM, pp 791- ; >52, Discusses i actor of number of samples 
 
 J33. Louis, E. An ore- samp lint; device. 2n^ . and Min. Uonr., vol. 60. 2 ^OS, 
 
 p. .61. Describes a machine with 3 V-troughs, practical in the field or 
 Laboratory. 
 
 533. (a) Louis, Henry. "Handbook of Gold Milling", 2nd. ed. 1839, pp. .51. 
 
 Importance of sampling, and lab, methods, p. 509. Also, "The Dressin^ 
 of Minerals", 1st. ed., 1909, pp. 54n . Where samplers uii fc nt be placed. 
 
 Luetcher, G.L. Sampling of materials used and produced in the manufacture 
 of iron and steel. American Manufacturer, vol. 45, no, 9, p. 3. Ibstr. 
 Jour, Iron and Steel Inst . , No. 2, 1699, pp. 472-475. Describes methods 
 for sampling ore in nines and in cars or piles, for reducing samples, 
 for sampling coal, coke, lia-estone, pi& iron, steel and wrought iron, 
 and furnace producer and chimney gases, 
 
 534. (a) Ludluui, A.C, Placer prospecting practice . Min. and Met., No. 
 
 Nov. 1321, pp, 27-28. The president of a dredge constructing company 
 discusses G.H. Hutton 1 s previous paper, and gives comparisons of sf.rikin e 
 pits and drilling holes with actual fold recovery by dred fe e near Lead- 
 ville. . 
 
 535. Lunge, G. Sampling and analyzing ores and chemical products. En& . and 
 
 Min. Jour., vol. 35, 1363, p. 2b6. Suggest international agreement on 
 methods. . . . 
 
 636. . Technical methods of chemical analysis. 1908-14, 3 vol. 
 
 Sampling, vol. 1, pp. 7-17. . 
 
 537. MacDonald, D.F, and Enzian, Charles. Prospecting and mining copper ores 
 at Santa Rita, N. Mex, .U.S.. Bureau of Mines Bull. 107, 1916, .pp. 122. 
 Describes churn-drilling, sampling, and estimation of disseminated 
 
 copper ore, 
 
 533, MacDonald, H.J.C, Standard mine cost statement, Eng, and Min. Jcur., 
 vol. 112, 1921, p. 127, He aji under which sampling comes. 
 
 539. MacDougall, C.W. Quincy mine assay office. Eng. and Min , Jour., vol. 61, 
 
 1^06, pp, 554, 706, 606. Describes methods of determining percentage 
 of copper in waste sands, in minerals from classifiers and tables, and 
 in waste slag. 
 
 540. MacFarren, H.W, A sampler , Min. and Sci. Press, vol. 95, 107, p. 677. 
 
 Describes a sampler for wet sand. 
 
 541. . A sand-tank sampler, Min. and Sci, Press, vol, 97, li?06 r 
 
 p. 636, Descrites and gives diagram of device. 
 
 542. . Practical stamp -mil ling and amalgamation, 3rd. ed., 1914. 
 
 Automatic sailers are considered best, p. 169. In Part 4, by C,T. 
 Hutchinson, pertinent remarks are given on sampling. 
 
 -43- 
 
543. Mandy, J.T. Cent ri tout ion t the j.hil e . pny _.f sni^ant sa...plin,_. J-^n, 
 
 Min. Jour., vol. 31, U10, p,j , 71c-72,c. Discusses ^nnci^les of s^iia 
 and compares mechanical s- .. pli* 1 ^ ar- a hana s-v-iplin^, favonn& tno fervor. 
 
 54-i. Marriage, E.C,L . Experiences of a custo: assayer. En,,, an-. Min. Jour., 
 vol. 110, 1^20, p. i06. Always ex x.ine tx.e original s^ ie submitted 
 for assay. 
 
 545. Marsh, Robert. Sa*i;plin<, anu assayin,. copper ores of the Ely District. 
 
 Colo. Sch, Mines Quart., vol. 30, l^Oc-C^, x :p. ^1-^7. Describes iietnris 
 both during prospecting and actual .Jii 
 
 546, Mathewson, E,P. Ore saciplin^ by machine. En*.,, and Min. Jcur. , vol. o5, 
 Ib08, pp. 336, 531, >76. Compares accuracy in i^dern works of oachine 
 samplin L; with tno best assaying. 
 
 546, (a) Mathez, Au^uste. Mine Sia^-liru. En,, and Wtin. Jour., vol. 75, li/C3, 
 
 jy. 304, Sampling irregular oreboaies, and a le^a seal for sample ba_s. 
 
 547. Mathiez, F.F. Ssunplin L diamond de resits. Mm. ?and Sci. Pr^ss, vol. 116, 
 
 l c/13, p. 324. Presents problems of saiv.ling. dia;;;ond deposits. 
 
 54.-. Maxwell, J.W, Mill check on uiine sac;plin L . . Eng. and Min. Jour., vol. 10-*;, 
 1^17, p. 36^:. Describes methods of taking sai.^ples that ckecked closely 
 with idll test. 
 
 54:?. McAllister, J.E. Greenwood copper si-eltin^ works. Eng. and Min. Jour., 
 vol. i?!, Ibll, pp. 1011-1015. Describes sauiplin^ arrangements. 
 
 ^ . (a) McCann, Ferdinand. Cyanide practice in Mexico. 1st. ed. 1^12, p. 
 In describing a number of mills, sar^plin^ is coverea. 
 
 550. McDerinott, Walter. Minin b repjrts ana. ulne salt in K Trans, Inst. Min. ana 
 Met., vol. 3, lc-^4-^5, pp. 10o-130. Describes experiences with frauds in 
 valuin.j, ore in place, op. 11-130. Discussion, po. 135-137, 140, 145- 
 146, I4r 
 
 551. McGillivray, J.D. Cc&stock ore sair.plin^ . Min. and Sci. Press, vol. 7^, 
 
 16i?6, p. 164. Evidence on ere sa^plin^ L ;iven in tne Hale ana Norcrcss 
 case. Discusses sampling uetnods in general and tn<-se used on the 6cu.- 
 stock in particular. 
 
 552. McGregor, A.G. Features cf the ne>- copper S:..eltin;_ plants in Arizona. 
 
 Trans. Ai.. Inst. Min. En,., vol. 55, l.,16, pp. 7 .,1-603. Describes con 
 centrate sampler, pj. . 7c3-7b4. 
 
 o53, McMillen, D.A. An autc-hudraulic sa^lin^ device used in Globe district, 
 
 Arizona. En t . and Min. J ur., vol. SO, 1^10, p. 9yb. Describes a machine 
 in which a teeter-box throws a valve and c-.a^its stea^i, or compressed air 
 to i^ove sampler. 
 
 >*. 
 
 -_ Sair.plin Icw-^rade and irregular orebodies. En^. ana iviin. 
 
 Jour., vol. 90, 1*10, pp. 750-751. Discusses errors in the usual methods 
 and describes the spiral ii.ethod. 
 
555. McNeill, V;.K. Notes en Cobalt silver ores. Can. Miin. Jour., vo?.. 3.- , 
 
 Jan. 1, 1-03. G-iveo s j-tgesticna for samplin; silver ^roo fro^ ucbul 
 Ont. 
 
 556. Megraw, H.A. Cyanidaticn at the Liberty Bell i-iill. En,-, ana. Min Jc-r. 
 
 vol. 95, Ibl3, pp. ;?- 13, Brief description and view cf -?.uton-.*. :ic ta 
 sampler. 
 
 557. _ . Calculation of extraction in cyanidation. En^, and 
 
 Jour., vol. 96, ls>13, pp. -<*l- *<**, discussion, p. 1230. Discusses 
 of correct sampling. 
 
 558. _ __. Cyaniamfe troubles and remedies, II. En.,, and Min. Jour., 
 vol. b4, 1:?12, pp. 360-364. Discusses inadequate sampling methods. 
 
 Mehrin fc , C.A. Treatment of boiler fesd water. Chen*, ^na Met . En^., vol. 
 21, Isli?, p. 630. Metnod of collecting ari^ samples. 
 
 560. Meiklejohn, C.A. Determination of available CaO in lin^e. fin,., and Min. 
 Jour., vol. 107, 191, p. 73^. Air ir.ust be kept froi- the sample 
 tested. 
 
 561. Mein, V/.?/. Sai^plint Icw-^rade ^ r deposits. Min. and En^. World, vol. ^2, 
 
 1915, p, 374. Methods at the Dome Mine, Ontario. 
 
 562. Meriwether, H.M, How mines should be examined. Sng. and Min. Jour., vol. 
 
 70, 1900, p. 514. Cou^ent on article by O.Ii. Packer. 
 
 563. Merrill, C.Y/. The alle b ect shortage in cyaniue bullion. Trans. Inst. Min. 
 
 and Met. , vol. 7, l-b-^9, pp. 223-226; uiscussicn, pp. 22o-228. De 
 scribes a straight slotted so-" op sailer for cyanide residue cf wet sand, 
 
 564. Merton, A.M. Specifications and tests for zinc aust . Min. and En^. World, 
 
 vol. 36, 1^13, pp. 1227-1226, Gives method for sa^plin^ ke L s of the dust. 
 
 565. Middleton, W.B. Prospecting tin land in Malaya. Min. Jour., vol. lOb, 
 
 lyl5, pp. 149-151; Trans. Inst. Min. and Met., vol. 24, 1^1^-15, pp. 300- 
 323. Discusses sampling, pp. 304-305, and describes sa^plin^ tne bore 
 holes, pp. 314-317, 324-3LJ6. 
 
 566. Miller, G.W. Mine sampling. Ores and Metals, vol. 13, Sept, 1, ls>C4, no. 
 
 17, p, 22-23; no. IS, pp % 23-25; no, 19, p, 22. Discusses principles ana 
 methods for sa^plin^ ore in place and ^akin fc oaps of mines ana gives table 
 for estiuiating, ^ross valxie of ere. 
 
 567. Millers, E.W. Sample reducing ii^chine. En^,. ana Min. Jour., vol. 3, lc/12, 
 p. 4-i4. Describes a uB-cnine especially designed for i^ixim, ana reducing 
 coal samples, but also prcvCtical for ether .id 
 
 567. (a) Minaret, F.H. Mine sacplin^. Eng. ana Mm. Jour., vol. 76, 103, p. 421 
 Sampling is a difficult job; no college graduate should ba in charge of 
 such work. Quartering, numbering, and calculating. 
 
 565. Mines and Methods, Sampling "joker" at Daly-V/est and Daly-Jud^e. Vol. 1, 
 1909, p. 156. Describes a crude and inaccurate sampler at the Daly-V/est 
 mill. 
 
 -45- 
 
563. __ _. Ohio copper mill, Utah. Vol. 1, 10, ^. 16*. De 
 
 scription of tester-box sampler. 
 
 570. Ivlines and Minerals. Automatic coal sampler. v ol. 31, 1^10-11, p. ot>. 
 
 571. __ ___ . Mechanical laboratory sampler. Vol. 35, 1*11, p. 
 
 Describes a machine h?.vin fe a series of hoppers. 
 
 572. _______ . Scientific study of copper deposit s. Vcl. 31,. 111, 
 
 pp. 6o*-6oS. Describes graphic method for deducin t wnether work in 
 progress is a true drift cr is crosscut tin tne vein. 
 
 573. Mining, and Engineering V/orld. An Oregon s....-ple grinder. Vol. 3a, lsO.3, p. 
 
 21. Description ana drying cf s. simple ore ^nndin L device used in 
 Oregon. 
 
 574. ___ . Cliffs automatic ore s^ler. Vol. *2, 115: 
 
 p. 93. Description and view cf machine for crushing ana sampling ore. 
 
 575. Mining and Scientific Press, (anonym. us). Apparatus for sampling ores. Vol, 
 
 31, 1575, p. 12. 
 
 576. ______ ____ _ _, Autonatic ore sampling. Vol. 7o, 
 
 , p. 521. The Bridgman ^achinB. 
 
 577. _____ | Coloraac Pitchblende Co. Vol. 
 
 llo, li?l, p, 412, Selection or accurate sampling? 
 
 578. __________ _. Todge sampling i_achine, Vol. 62, 
 
 , p. 1^3. Illustrated description. 
 
 579. _ ________ . Flow-sheet of Independence 
 
 ...ill, Cripple Creek, Cclo. showint sampling plant. Vcl. llo, 1^1^ 
 
 . Foster-Coclidge autoccatic 
 
 ri __ 
 
 saaoling machine. Vol. 64, 1902, p, 337. Apparatus described couipared 
 with hand sampling,. 
 
 . Good fonn of sauiplint pick. Vol 
 
 b2, 106, p. 21. Brief description and drawings. 
 
 582. . Hints to speculators and mine 
 
 investors, vol. 123, Ib21, p, 127. Hint 14, as given in a Cornish publi 
 cation of 1657, warns people that samples submitted may not be from the 
 mine under discussion, 
 
 583. . Idlewild sampler. Vol. ?4, Io97, 
 
 p. 432. Gives brief description and drawings of a tailings sampler used 
 at Idlewild or Taylor mine, Cal. 
 
 . Improved automatic tailin^ sample 
 
 Vol. 84, 1902, p. 317. Description of device for cutting cut samples of 
 tailings that are sluiced from the 
 
^ ^ . In?.ccuracies in inill sauiplint. . Vol. 
 
 91, 1905, p. 20. ris cuss ion . f causes of errors. 
 
 . Lead sr.eltin^,. Vol. 52, Ido6, p< 7. 
 
 Discusses sa^plin^, and buyin^ of ore. 
 
 Method of arran!/.,in_ u.ine sa 
 
 Vol. 79, l.-.^af, p. 4. Criticizes Bancroft s "foot-ounce" uethoci of val 
 uation. 
 
 , Methods at a Colorado sampler. Vol. 
 
 76, 135*8, p. 564, 
 
 Discusses methods 6f sailing silver ore. 
 
 samples. Vol. 4o, Ic^b4, p. 352. 
 
 
 p. 234. Condetans inaccurate sampling by raine-o wners. 
 
 ine oircners 1 sa; r plim , Vol. 73, lo6, 
 
 vol. b2, 1^06, p. 102, I iscusses ti.ethods of 
 
 Mine Siu-plin^, Vol. 37, 1>03, p. 78; 
 
 Mine sai^plin^ av.ain. Vol. 116, 
 
 p. 44o, General discussion of subj-jct, and conclusion that uininn is 
 selective, but s^i:.plin^ is non- selective, 
 
 _____ __ _ . Notes on i:rine sacplin^. Vol. dfe, 1904, 
 
 . 55. Gives advico and su^Kestions on oine saaipling, 
 
 
 , Permissible explosives. Vol. 122, 
 
 1^21, p. 96, S^ -ples submitted to Bureau of Mines for test ijust be 
 . r eptfe sentat ive * 
 
 ] . Prospecting, Vol. 123,. 121, p. 82, 
 
 Editor s note in discussi.cn su^ests that a sau-pie ! be tc.ken, not a 
 specimen 1 . 
 
 , Sailing of L,inos. Vol. 121, 1920, 
 
 p, 163, How or* entire mining town aided in salting an engineer s samples, 
 
 ID lint a drill-hole by dynaoiitin^. 
 
 Vol. Ill, la15, p, ?75, Brief description. 
 
 , Sampling and assaying. Vol. 94, 1907, 
 
 pp, 336, 461, 452. Letters discussing errors in r&ine valuation. 
 
 , Sampling and avera^in^ ores. Vol. 67, 
 
 .1903, p, 414, Advises aaily sampling an working a a^ine ana the keepin L 
 of sample records. 
 
 . Sampling lar^e lov;- t rade orebodies. 
 
 Vol. 114, 1917, pp. 2*3, 469, 719, 7i,l, 792 } 90o; vol. 115, 1917, pp, 5, 
 113, 115, 30.1, 379, 451, 453. Editorials and discussions of methods of 
 mine sampling, and of mines tnat cannot be 
 
 -47- 
 
5d % ________ . Sailing auriferous quartz. Vol. 60, 1690, 
 
 pp. 261, 267. Describes methods of sampling and testing told quartz. 
 
 502. ______ . Saar.pl ing, auriferous concentrates. Vol. 63, 
 
 " 1691, p. 2347" 
 
 603. ___ . Sampling gold quartz. Vol. 71, I-y o, p. 
 
 117. Describes test for determining quantity of gold iLechanically ccm- 
 ijined with auriferous vein matter. 
 
 604. ____ . Testing ores. Vol. 72, lc^6, p. 1<*5. De-1 
 
 scribes crushing and quartering iuethoo. at mines. 
 
 605. _____ __ . Two styles of tailing samplers. ?cl. t>6 
 
 190s, p. 37^. Describes briefly two automatic samplers, 
 
 606. _ _ ; _____ < ____ . A neat device for sainplint screenings. 
 
 Vol. 103, Isll, p. 595, Below a screen is a slotted one-inch pipe which 
 catches some material passing thru the screen. 
 
 607. _ __ ____ __ _ . Valuation of mines; editorials, vol. 
 
 1921, pp, 37i> and 4:86, Sampling 7 old Coinstock uj.nes and 1 proposed oper 
 ations; ana difference between sampling, and mining. 
 
 606. Minin b Journal. Robeson s continuous autoajatic sailer for sta^p batteries 
 Vol. 75, 1904, p, 475. Description of sampler , 
 
 609, Mining Magazine, Sampling and esti natin L Messina copper ore reserves. 
 
 Vol. 13, IS 15, pp. 320-321. Describes face sauiplin^ and car sampling in 
 the Transvaal, 
 
 610. _______ . Selling, tin concentrate. Volt 6, lc?12, pp. 2o-26. 
 
 Mentions some peculiarities of the Cornish system of saiuplint. tin or3s. 
 
 611, Mining Reporter* Notes on saiiplin^.. Vol. 44, 1901, pp, 315, 423, *47, 
 
 465, 4oc, 513; vol. 45, li/02, pp. ^, 117, 156, 206, 24^, 372, 3K, 337, 
 362, 408. Discusses methods of sampling and describes in detail several 
 s amp 1 i ng 
 
 512. ___ . Procedure to be used in s?.mplin and settling ores shipped 
 to the U.S.R . Go, Vol. 53, May, 31, 1906, p, 533. Gives copy of sampling 
 regulations issued by the company, 
 
 613, Mining Science, Fairchild tailings sacqpler. Vol. 6-*, 1^11, pp. 279-2cO. 
 
 Describes a s-iiLplor v/ith vertical axis rotated by pu&p. 
 
 614. Mixer, C.T, Methods of sampling iron ore, Proocoed. Lake Superior Min. 
 
 Inst.., vol. 4, Ic96, pp, 27-33. DescriDes a^thods of sau.plin 6 used by 
 four companies. 
 
 61-4. (a) Moline, A.H.P. Calculating percentage of racovery in concentration. 
 Min, and Sci, Press, vol. 117, 11: , p, 1;?2. Accuracy of calculations 
 depends upon reliable sau-v.-lin_ of feed and 
 
.5, Monahan, F,Y/. Device for sampling zinc-box solutions. Eng, and Min, 
 
 Jour. , vol. 39, 1910, p. o51. Dascrioes siphoning a sample of cyanide 
 solution witii a bottle and a cotton wick. 
 
 6, Montanistischen vereinirn Erz^ebir^e Geitscnrift. Musterentnahme von 
 Erzen, (Taking samples of ores) Dec. 1, la!2, p. ^61. 
 
 . Moore, M.S. Report on the Blue Tier tin-field, T^si^ania. Suppl. No. 1, 
 Proc, Australia Inst. Min. Enr,., Dec, 30, 112, 
 
 ,8. Morgan, J.C. and Barrett, E,P, A chemical laboratory. Min. and Sci. 
 
 Press, vol. 120, 1920, p. 300. Plan of Bureau of Mines laboratoiy at 
 Salt L-^ke City, showing place for samples. 
 
 L9, Morgan, P.G. Difficulties and errors in sampling ores of gold and other 
 cetals. New Zealand Mines Record, vcl. 6, Oct. 16, 1902. Gives di 
 rections for sa 
 
 20. Moses, F.G. Soling of churn- drill prospect hc>les. Eng. and Min. Jour., 
 vol. 100, 1915, pp. 301-30*. Discusses difficulties with dart-valve 
 boilers, .through foreign rock getting into sludge, and precautions to 
 be observed in drying sacples. Describes splitter for reducing samples 
 automatically. 
 
 Mess. H.W. Sampling and weighing lead ores. Trans./ Inst ., vol. d, 1^01, 
 p 92. Describes methods in use at Broken Hill, Australia. 
 
 33. Muir, D.D. Sampling low-^rade ore on a large scale. Min. and Sci. Press, 
 
 vol. Ill, 1915, pp. 737-741, cogent p. 730. Describes and compares au 
 tomatic sampling and the concentrate method used on gold ore in Alaska, 
 
 34. Munroe, H.S. Losses in copper dressing in L?.ke Superior district, Trans . 
 
 Amer. Ins,t. Min. Eng., vol. 6, 1579, pp. 409-451, "Sampling of sands, 
 assays, etc"., p^^20, 
 
 Mine samplin b ana valuation. Min. and Met. Soc. Am, , Bull. 
 
 44-45, 1912, pp. 116-122; Min, ana Sci. Press, vol. 1Q5, 112, pp. 16- 
 Enfe. and Min. Jour., vol. 93, Iyl2, pp. 1276-1277. lyi-^cusses methods 
 and problems. 
 
 26. __. Sampling hdne dunps. School of Mines (Columbia) .Quarterly, 
 
 " vol. XXEX, April, 1906, p. 233. The natural sizing of ore on dumps, 
 and sinking samplint shafts lined with corrugated iron. 
 
 7. Murray, C.3. Meed of uniform methods of sampling Lake Superior iron ore. 
 Trans. Am, Inst. Min. Eng., vol. 50, 1914, pp. 204-210, discussion 210- 
 230, Describes various methods and surest s a method for sanplin^ cars. 
 
 e. Myers, 7, ilber. Grading iron ores. En^. and Min. Jour., vol. 97, 1914, 
 pp. 1203-1205. Describes d,*;ily sampling of ore at the ^ice, 
 
 9. Nae thing, F.S. Diamond drillin e at the Miaiu mine, Arizona. Eng. and Min. 
 Jour., vol. 97, 1^14, pp. lC3^-104l. Describes s^Jipling and recording 
 methods . 
 
 -49- 
 
63C. Nagel, 0. Layout, lesion, and construction of chemical and metallurical 
 plants, 1911, 2C6 p^. Describes sampling nill, pp. 63-64^ and dir- 
 cusses layout, design and construction of sampling plant?, pp. c2-co . 
 
 631. N^son, A. A. Sampling ores from Cobalt nines, En^. . and Min, Jour., vol. ; 
 
 1911, p. 114^; vol. b2, 1911, p. ol. Criticizes article by F.Y, . Pugsle; 
 
 632. Newberry, A.V.- . Drill-hole samples in raising. Eng. and Min. Jour., vol. 
 
 97, 1914, p. 709. Describes r:.othods in sapling a mine by drilling intc 
 a raise, 
 
 633. Newhourse, E,L. Ore sampling and buying in Mexico. Eng, and Min* Jour*, 
 
 vol* 49, 1890, p. 535. Describes rtethod of saiLpling. at nines. 
 
 634. Nichols, H.G. A pulp-stream sampler. Ent. and Mm. Jour,, vol. 97, It>l4, 
 
 p. 19. 
 
 635 _ Treatment cf tin ores in Cornwall. Trans. Inst, ivdn. and 
 Met., vol. 25, 1^13-14, pp. o5-100. Describes an improvement on the 
 Elinore sampler, p. b : 5-i>6. 
 
 636. Nicholls, fi.E. A method of testing alluvial deposits. Trans. Inst. Min. 
 
 and Met., vol. U, 1*05-06, pp. 195. Describes method of testing lar fe e 
 alluvial flats for gold. 
 
 637. Nissenson, - Bleierzbemusterwit . (Sampling lead ore) CheiJiker-Zt fe . , 
 
 Jahr. 37, 1913, p. 1136. Describes methods of reducing size of samples 
 for different kinds of ore. 
 
 633. North, Vv .O. Milling at United Eastern, Arizona. Bull, 152, Au b . 11, 
 
 A.I. M. & M. E,, p. 1189. Sampling methods from feed to residue. Cost 
 is 4/10 of 1 cent per ton. 
 
 639. Dates, J.H. Battery feed sampler. En . and Min, Jour,, vol. 69, 1910, p. 
 
 1005. Describes a tLachine with a sheet-iron box on a swin^in^ arm, and 
 hinged bottom opened by tripper at receiver. 
 
 640. O Brien, T.F. The Koerin^ process. Min. and Sci. Press, vol. 122, 
 
 p. 523. gamplos of fe old ore said not to yield gold by assays. 
 
 641. Oke, A.L. A crude but efficient sampler, Eng. and Min. Jour., vol. 87, 
 1909, p. ^0. Describes and gives views of i-a 
 
 642 * ; Cutti ng floor s-.r.ples. En;,, and Min, Jour., vol. *7, 1^14, pp. 
 b50-^51. Describes and gives figures showin. device to catch flyin, 
 pieces, 
 
 643 - Keeping records of nine sa^plin, . Mex. Min. Jour., vol. 19, 19] 
 pp. 213-215. Describes ii.etliods ad -p ted to ScULplin t vein formations. 
 
 New samplin.;. device. En . and Min. Jour., vol. 66, IcJOc, p. 12< 
 
 . ., . , , 
 
 Describes a device with - set of sloi. ms, rifflos, like H&ultain s. 
 
 -oC- 
 
Office records of alne s^x-plin^. Mex. Mi n. Jour,, 
 
 _ __ _____ , 
 
 12-13, li;ll, p x .-. 50-61. Describes for-s and ^etnoas used v.lch native 
 assistants on silver ana gold-silver veins in Argentina, 
 
 ___ _ _ Riffle for reducin^, samples. En^. and Min, Jour., vol. 
 97, 1914, p. 620. Describes a portable sampling riffle. 
 
 647. _ . Sample catcher for backs. Eng, and Min. Jour., vol. 9o, 
 
 1914, pp. 1096-10:77. Describes canvas ba t used when sampling tne back 
 of a working, in order to prevent loss of any material broken, 
 
 648. __ . A sample crusher. Eng. and Min. Jour., vol. ?1, 111, 
 
 p. 55, Describes and illustrates ho^-made crasher for mine s 
 
 64i>, _ . Aids to the Engineer. Min. Mag., vol. 10, 1914, p. 370. 
 Discusses sailing fetcpes in South America. 
 
 650. Oldfield, F.7/. A s-mpler. Min. and Sci. Press, vol. *5, 1907, p. 807. 
 
 Describes a sampler for wet s^jnd. 
 
 651. Olver, J.S. Rand s?ji.pling practice, iibstr. fdn, and Sci. Press, vol. 97, 
 
 1908, pp. 674-675. Describes various methods. 
 
 651. (a) Odernheir^er, E. Sampling calcium carbide. Checker Zeitung, vol. 
 
 26, 1902, p, 703. The compusition is variable, due to unconverted liiae 
 and coke. A drum should be emptied on a metal plate, and after the dust 
 is distributed evenly, take two 1-lb samples. Lots of 100 drums. may be 
 sampled by drawing from each tenth drum. A respirator should be worn 
 during this work, 
 
 652. Orthey, Max. Probenahme and Analyse der Proben auf Eisenhuttenwerken, 
 
 (Sampling and analysis of iron samples in blast-furnaces) Metallurgie, 
 vol. 4, 1907, pp. 265-277. 
 
 653. Pacific Coast Miner. An automatic sand sampler. Vol. 15, ly09, p. 96. 
 
 653, (a) Packard, G.A, Sampling and estimation of ore, vol. 76, 1^03, p. 116. 
 
 Effect of high and barren assays upon averages. 
 
 654. Packer, .O.K. How mines should be examined, En^. and Min. Jour,, Vol. 70, 
 
 1900, pp, 457-458. Discusses sampling methods and tsives instructions 
 for examining and sapling a mine. 
 
 655. Palmer, C.S. An experience in sampling. Mining Reporter, vol. 50, July 
 
 28, 1904, p. 65. Discusses effect of fineness of sample. 
 
 656, _ . Notes on sampling. Eng. and Min. Jour,, vol. t-0, 1905, p 
 
 405. Presents difficulties of 
 
 657. Park, Jaues. Mine- sampling and ore- valuation. New Zealand Mines Record, 
 vol. 8, Mar. 16, 1S05, p. 32?. Discusses equipment, record of samples, 
 sampling ore, assaying, sampling dumps and tailings, < ?nd salting cf 
 
 -ol- 
 
658. Parker, E.ft, Holmes, J.A, , and Campbell, M.P. Report on operations of the 
 
 government coal-testing plant at the Louisiana Purchase Exposition, St. 
 Louis, Mo. 1904. U.S. Gaol, Surv. Prcf . Paper 4o, 1906, 3 vols. Dis 
 cusses commercial value of coal-mine sampling* pp. 142-155. 
 
 659. Parker, R.A. Mine sampling. EI%. and Min. Jour., vol. 76, 1^03, p. 4. 
 
 Danger in mixing damp samples on canvas; a specific instance of wide 
 difference in assays, Discussion of W.L, Austin en same point, p. 116. 
 
 660. . Sampling large low-grade orebodies. Min. and Sci . Press, vol, 
 
 114, 1917, p. 03, Gives suggestions for sampling gold deposits. 
 
 661. Parmelee, B.C. Cyanidation of low-^rade sulphide ores, in Colorado. Met. 
 
 and Chei... En*,., vol. 13, 1^15, pp. 421-425. Describes samplim plant. 
 
 662. . Some assay results from re-samplea cres. Western Chem. 
 
 and Met., vol. 1, 1905, pp. Io2. Ascribes the lowering of value in re 
 sampling to loss of dust carrying high metal content. 
 
 663. Parr, S.W. Chemical study of Illinois coils. 111. Geol, Surv., Bull. 3, 
 
 1916, c<6 pp. Gives methods of field samplin bj pp. 11-26. 
 
 664. . Principles of coal sampling. Sci. Am, Suppl. , vol. -0, 1*15, 
 
 pp. 15-16. 
 
 655. Parsons, A.B. Nevada Consolidates Copper Co.. Min. and Sci. Press, vol. 
 122, 1921, p. 525. Sampling and estimating the deposit fron churn- 
 drilling. 
 
 666. . Operations of the En^els Copper Mining Co., Calif. Min. 
 
 and Sci. Press, vol, 123, 1^21, ,;p, 189 and 193. Flow- sheet cf call 
 shows position of three samplers, which are described as bein^ autOLoati 
 cf the swinging type. They take samples of feed, concentrate, and tailin 
 and are very reliable. 
 
 667. . Sampling at Garfield smelter, Min, and Sci. Press, vol. 122 
 
 1921, p.. 17, Description of how concentrate is sampled. 
 
 667, (a) Parsons, L.A. Mill-tests v. hand- samp ling. Min. and Sci. Press, vol. 
 
 115, 1917, pp. 781-752. Discusses advisability of of usinr Webber s plan 
 fcr checking hand sampling by udll-test. 
 
 667. (b) . Sampling an erratic orebody, Min. Mag., vol, 13, 1915, 
 
 pp. lol-154; Min. and Sci. Press, vol. 114, 1917, pp. 724-726, 903-910. 
 Describes methods and discusses principles. 
 
 668. Paterson , G.S. Prospecting for alluvial tin in Nigeria. Min. Mag., vol. 
 
 12, 1915, pp. 33-41. Discusses pit and drill sampling and gires figures 
 showing sampling method and apparatus. 
 
 669. Patterson, B,G. and Thomas, G.A. Mount Morgan (Queensland) practise of 
 
 estimating ore reserves. Trans. Aust. I. M. E., vol. 15 (l), 1911, p. 
 301, gampliiig of certain blocks of grouncd done at night, and assayed 
 next day, thus keeping a close check on nailing. 
 
 -52- 
 
670. Poad, O.K. An autota?tic sampler for tailing, sand, and slime. 
 
 Chen., Met, and ton. Sec. S. Africa, vol. 3, 1902-03, pp, 360-361; Min. 
 
 and Sci. Press, vol. 66, 1903, pp. <*10-411 ; Min. Jour., vol. 73, 1903, 
 p. 766. Describes a sampler run by water. 
 
 671. Pearce, J.A, Ore sampling at a custom call. Eng, and Min. Jour,, vol. 
 
 104, 1917, p. 66. Describes methods at the Argo iid 
 
 672. Pearce, S-.H. gotno notes on nine surface sampling,, Min. and Sci, Press, 
 
 vol. 79, 1899, pp, 515, 549; Mines and Minerals, vol. 20, 1900, pp. 3*1- 
 394, Discusses methods. 
 
 G7P-. (a) Peele, Robert. Mining Engineers Handbook, 1st. ed. 1*18, pp* 2375. 
 In 7 sections, by 7 engineers, are -notes on sampling, orebcdies and mill 
 products, 
 
 673. Pelton , E.F. A system cf mine sampling. Eng. and Min. Jour., vol. 94, 
 
 1912, pp. 403-404, Describes method cf close sampling in use at Morenci, 
 
 Ariz, 
 
 673. (a) Percy, John, Metallurgy - silver and gold, part I, 16bO, pp. 696. 
 ing of silver ores described, p. 241. 
 
 674. Perret, L.A, Russian placer mining. Min, and Sci. Press, vol. 122, 1921, 
 
 p. 457. Pit and drill sampling. 
 
 675. Peters, E.D. Modern copper smelting,. 1695, 642 pp. Discusses sampling, 
 
 pp. 3Q-<1, 
 
 676. ___ . The practice of copper smelting 1*11, 693 pp. Discusses 
 
 sampling of copper ores, pp. b-20. 
 
 677. Pierce, A.R. Sampling large low-grade ore bodies, Min, and Sci. Press, 
 
 vol. 119, 1919, p. 396 and 553. Discussion of mill tests and hand 
 sampling. 
 
 67b, Pope, G.S. Directions for sampling coal for shipment or delivery. Tech. 
 Paper 133, U.S, Bureau of Mines, 1917, 15 pp. Summarizes U.S. Bureau 
 of Mines Bull. 116. 
 
 679. _ , Methods of sampling, delivered coal and specifications for the 
 purchase of coal for the Government. U.S. Bureau Mines Bull. 116, 1916, 
 64, pp, Describes nacre fully the methods given in U.S. Bureau of Mines 
 
 gall. 63 - 
 
 660. ___ , Sampling coal deliveries , and types of government specifica 
 
 tions for the purchase cf coal. U.S. Bureau Mines Bull. 63, 1933, 66 pp. 
 Describes in detail the methods of sampling and the reasons therefor; 
 gives new specifications for the purchase bf coal by the Government. 
 
 681, Poston, R.K. Carrier for nill sample pans. En^. and Min. Jour., vol. 10<J, 
 I9l, p. fc02. A wooden cabinet 2* in, high with 9 shelves is used. 
 
 -53- 
 
6^2. Power, F, Danvers. Sa^lint ores on the west ccast of Tasmania. Trans. 
 Australian Inst. Min.. Eng, , vol. 3, 1395, p. 237. Describes business 
 c&fclwfcfs, 
 
 683. Pew?,r, Collecting and preparing Camples of coal deliveries. Vol. 43, 
 1916, p. 864, DA scus?es and illustrates quartering. 
 
 664. Power and the Engineer* Sa^plin^. and analysis of coal. Gives methods of 
 sailing and ts^tiiie- Msed by the technologic branch of the U.S. Gecl, 
 Survey. Voil . Jl, .V.-./09, pp. 477-480. 
 
 * 
 
 655. Pries, G,W, The Cananea ore-bedding system. Min. and oci . Press, vol. 
 11^, 1*19, p. 66.:. Sampling axed copper ores, and the cost. 
 
 6-6. Prutzr^n, P.W, Petrcleuu in Southern California. State Mining Bureau 
 Bull, 63, 1913. Selection and analyses of Sc 
 
 637. Paisley, F.W, Samplin^, ores frorr- Cobalt rones. Eng, and Min. Jour., vol. 
 
 91, 1*11, p . 776; vol. 92, Ibll, p. 5. Discussion, vol. 91, 111, p. 
 1144; vol. 92, 1911, pp. 5, 51. 
 
 666. Pulsifer, H.B. Ore- samp} ing in Montana. Min, and Sci . Press, vcl, 121, 
 1920, pp. 866, A study of custom ore-saiAplin^ plants in Montana, fully 
 illustrated. Editorial cogent on p. s60. 
 
 6c6. (a) Purinfcton, C.V/. Esti nates of ore in a iidne . Eng and Min. Jour,, 
 
 vol. 75, Ib03, p. 552. Discussion of G.E. Ccllin s note. Consideration 
 of tne systarn of ore-snoots in a mine, as opened, of importance. 
 
 638. (b) ____ . Gravel and placer rdning in Alaska. U.S. Geol, 
 
 Survey Bull, 263, 1905, p. 273. Necessity for sa^plin^ discussed pp. 
 42 and 53. 
 
 689. Pye, A.M. Methods of sampling. Australian Min. Standard, vol. 3^, l0o, 
 p. 24^, Describes rather crude net hods used in Australia. 
 
 6=0. Radford, W.J. Methods of testing placer ^ravels. Min. .and Sci. Press, 
 
 vcl. 109, 1^14, pp. 5 and 221. sampling by panning, shafts, and anils, 
 
 6S1. Raht, A. Distribution of silver in lead, oullion and the different methods 
 of sampling. Mic. Ind., vol. 3, 1894, pp. 414-41& . Describes methods 
 in the United States and advocates dip- sarnie s. 
 
 692. Ransou.e, F.L. Copper deposits of Ray and Miani, Arizona* U.S. Gecicgical 
 Survey P.P. 115, iil, pp. 122. Importance of correct sampling of dis- 
 sendn = ted copper ores (p.i2.) 
 
 6 93 , Rattle, W.J. and Son. Cargo sampling of iron ores received at Lower Lake 
 ports - including the methods used in the analysis of the Ea&e . L^ke 
 Superior Min. In si., vcl. 11. 1S05, pp.l *3-lSO; Eng. and Mm. Jour., 
 vol. 80, 1905, pp. 824-825; Mines and Minerals, vol. 26, 1906, pp. 316- 
 319; Iron age, vol. 76, 1905, p. 1162; Iron Trade Rev., vcl. 36, no. 42, 
 Oct. 19, 1905, pp. 23-29. 
 
 -*- 
 
, R&wlins, S.L. Samplin? cine duarps . Man. and Sci. Press, vol. 97, I-OS , p, 
 120. Describes methods used on old. Spanish dumps. 
 
 >95. Sajmond, R.E, Sampling, large 1 o .v- grade creb odd es. Min< and oci Prtss, 
 vol. 115, 1917, p 301, Describes mines in Juisbouir that can not be 
 sampled. 
 
 , (a) Read, T.T, The Mason Valley Copper .Shelter, Nevada, Min. and Sci. 
 Press, vol. 105, 1912, p. 267. Describes sampling cf ere, 
 
 6. Reed, S,A. More remarks on ore sampling. Sch, Mines Qaart,, vol.-, 3, 16b2, 
 p. 253; vo], 6, 1684-35, pp. 351-358; Min. and -Sci* Press, vol. -i5, 3.db<3, 
 p u 9. Illustrates split- shovel and riffle- shovel sampler with fi^ed 
 scoop and some types with moving scoops. 
 
 697, Reinecke, L, and Clark, K.A. Sampling deposits of stone and gravel in 
 the field. Proc, Am, Sec. Testing Materials, vol. 18, part 2, 1913, p, 
 393. Methods for sampling and testing rock for concrete. 
 
 693. Reyburn, S.tiT. and Zimmerman, S.B, Diamonds, in Arkansas. Eng. and Min, 
 
 Jour., vol. 109, 1S20, p. S53. In sampling Arkansas Diamond Corp. proper 
 ty in Pike County, 120,000 tons of rock and clay is to be milled and 
 washed. 
 
 699. Reynolds, O.J. Sampling a difficult ore. Cal, Jour, of ^Technology, vol. 
 
 vol. 5, no. 1, 1305, p. 39. Describes car load sampling of ore carrying 
 gold, silver, lead, and zinc. 
 
 r 
 
 700. Rice, C.T. Grab sampling in stopes. Eng. and Min. Jour,, vol. 92, lall, 
 
 p, 741. Describes accurate methods of taking grab samples. 
 
 701. . Sampling practice at Independence nill, Eng, and Min. Jour., 
 
 vol. 107, 1919, p. 641, Describes appliances used, 
 
 702. Rice, E.R. Churn-drilling of disseminated copper. Eng. and Min, Jour., 
 
 vol. Ill, 1921, p, 1058; and vol. 112, 1921, p. 11. Sampling and assaying 
 the sludge. 
 
 702. (a) Rice, G,S. and others. First series of coal-dust explosion tests in the 
 
 Experimental Mine. U.S. Bureau of Mines Bull. 56, 1913, p. 113. Method 
 of sampling afterdamp and other gases, pp. 36, 54, 107. 
 
 703. Rice, J.H, Methods of sampling ore in place. Min. and Sci. Press, vol. 
 
 97, 1908, p. 3d2. Criticizes inadequate methods and advises the sampling 
 of each streak. 
 
 704. Richards, R.H. Ore dressing, 1st. ed. 1909, 4 vols., 2052pp. "Samplers", 
 
 vol, 2,. pp. 643-852; vol. 3, pp. 1570-1573. 
 
 705. . Text book of ore dressing. 1st. ed. 1909, 702pp. Dis-- 
 
 cusses difficulties of sampling, compares hand ard machine sampling, dis 
 cusses taking pioicture samples, size of samples, limits to machine 
 sampling; describes and compares the Vezin, the Snyder and tne i>runton 
 samplers, pp. 430-435. 
 
 -55- 
 
705. (a) Rickard, Forbes, xina saiuplin^. En;., and ivftn. Jour., vol. ?ft, 190 
 
 p. 921. Sampling of a sampling. or checking the average of a nv. -.tc- c? 
 samples by s/amplirv the quartering. 
 
 706. Rickard, T.A. Bunker Hill enterprise, Idaho, Win. and Sci . Pres?, vol. 
 
 120, 12*20, pp. 489 and 527. Flow- sheets showing position of sample/? : 
 the load mill. 
 
 707. _ . Bunker Hill smelter, Min. and Sci. Press, vol. 122, 1921, 
 
 p, 47, Saripling mill at lead smelter, 
 
 708. __ . Old Mexican workings and some remarks on sampling. Min. ar 
 
 Sci. Press, vcl. 94, 1907, pp. 433-435. Describes methods of sampling, 
 buying, and selling among the Mexicans. 
 
 709. ___ . Re-openin^ clu mines en the Mother Lode, Calif. Min. and 
 
 Sci. Press, 113, 1916, pp. 238 and 240, Flow- sheet Shows position of 
 sampler in mill; and notes on sampling practise. 
 
 710. _ _ ., and Others, under own names. Sampling and Estimation of Oi 
 
 in a Mine. 5th impression, 1907, p, .222. A symposium oil mine sampling 
 by 27 engineers. Reprint fromEng. and Min. Jour., vols. 75, 1903; 76, 
 1903; 77, 1904. 
 
 710. (a) _ _ . Sstupling and estimation of ore in a mine. Eng. and Min. 
 Jour., vol. 75, 1903, pp. 213, 254, 290, 362, 438, 515, 555, 590, 626, 
 662; vol. 76, 1903, pp. 305, 345, 498. The whole subject lucidly dis 
 cussed. Following these were the views of 26 engineers, which were re 
 printed in Sampling and Estimation of Ore in a Mine, 1904, A review of 
 the symposium by T.Ai Rickard in vcl. 76, 1903, pp. 305, 345, 498, 730, 
 and also re-printed, 
 
 716. (b) __ _ . St imp-milling of gold ores. 2nd. ed., 1898, p. 260. Auto 
 rnatic sampler described on p. 50, and the lack of regular sampling dis 
 cussed on 94 and 241. 
 
 Utah Copper enterprise. Min, and Sci. Press, vol. 117, 
 
 1918, p. 477, sac-pie plan of ore deposit; p. 716, automatic sampler in 
 the mill; p. 853, sampling flotation concentrates, 
 
 712 ___ . Valuation of mines. Min. ana Sci. Press, vol, 106, 1913, 
 pp. 766-771. Gives advice to the young mining engineer. 
 
 713. Ricketts, L.D. Constant errors in sampling and assaying. Min. Mag,, vol. 
 
 4, 1911, p, 127. Eng. and Min. Jour., vol. 90, 1910, p. 316, Discusse 
 errors not dependent on the doctrine of chancs, in sampling porphyry 
 copper deposits, for instance. 
 
 714. Reifsnyder, S.K. Some experiments on sampling quartation. Jour. Am. Chem 
 
 Soc., vol. 15, 1893, pp. 260-265. Describes mixing shot, ore (magnetit* 
 and glass and dividing, after nixing by inquartation to determine the 
 error with both dry and wet material. 
 
 -56- 
 
715. Riley, L.F % New simple device for sampling. Jour. Soc, Chem. Ind., vol. 
 
 38, 11&. A tapered tube is used for -catching aust. 
 
 716. Bobbins, H.R. Chart for tonnage- samp 3. ing and dilution-control, Min, and 
 
 Sci. Press, vol. 116, 1918, p. 584. Gives chart for deiennining dry- 
 tonnage er 24 hours, percentage of solid in wet pulp and specific 
 gravity of dry ore in wet pulp. 
 
 717. Roberts, G.M. Experiments in sampling silver-lead bullion. Trans, An*. 
 
 Inst, Min. Eng,, vol. 28, 1899, pp. 413-427. Discusses sampling bars 
 
 from the liq-iation furnace and bars from the lead kettles, touge and 
 
 chip -sampling, distribution of silver in the bar, and loss of lead by 
 volatilization. 
 
 718. Roberts, H.M. Progress in methods of exploration. Min, and Sci, Press, 
 
 vol. 119, 1919, p. 55, A good diamond-drill sample is superior to any 
 other ore sample. 
 
 719. Robey , Llod. Methods of taking mill-head samples. Min, and Sci. Press, 
 
 vol. 109, 1914, pp. 183-184. Discusses difficulties. 
 
 720. Rogers, A.H. and Van Wagenen , H.R. Chilean nitrate industry, Trans. Am, 
 
 Inst. Win, Eng. , vol. 59, 1917. Discusses prospecting and sampling, p. 
 11-12, 
 
 221. Rogers, A. P. Dredging and the sampling of placer ground. Eng, and Min. 
 Jour., vol. 89, 1910, pp. 561-562* #ives details of sampling, geld ore. 
 
 722. Rogers, G.S. Helium-Bearing Natural Gas. U.S. Geol. Survey, P. P. 121, p.. 
 
 113, 1919. sampling and tests of gas for helium. 
 
 723. . Sunset-Midway Oilfield, California. U.S, Geol. purvey, P.P. 
 
 117, p. 103, 1919. Sampling oil and water, pp. 15 and 52. 
 
 724. Roller, A.H. and Curran, H.T. Cyaniding sulphide ores at the Ar t o id.ll, 
 
 Idaho Springs, Colo, Mex. Min. Jour,, vol. 18, 1914, pp. 204-208. De 
 scribes mill and sampling methods. 
 
 725. Rollin, G.S, Improved sludge box for diamond drilling. n , and .Yiin. Jcur., 
 
 vol. 97, 1914, p. 660, Describes and gives sketch of box for catching 
 samples. 
 
 726. Root, J.W. Sampling base bullion. Western Chem. and Met ., vcl. 1, 1905, 
 
 p. 221; Mining Reporter, vol. 53, 1906, p. 129, Discusses sampling base 
 bullion by punching, sawing, dipping from the kettle, and casting from 
 the melding siphon. The rate at which different sections of the bars 
 cooled, showed distribution of silver. 
 
 727. Roper, L.S, Valuing partly exhausted mines, Min. ana Sci. Press, vol. 122, 
 
 1921, p. 667. How sampling sometimes does not indicate value of a mine. 
 
 728. Rose, Hugh, Santa Gertrudis mill, Pachuca, Mexico, Bull. Am. Inst. Min. 
 
 Eng. 1916; abstr, Eng. and Min, Jour,, vol. 102, 1916, pp. 247-253. De 
 scribes sampling of ore, p, 2*7, and gives plan of breakinr and sampling 
 plant. 
 
 -57- 
 
7S8, (a) Rose, T.K, Metallurgy of b old, 6tti. ea., 1915, p. 601. 
 references to s^-plin^. 
 
 729. Ruhl, Otto. Rock-dust sampler, n^. and Min Jour., vol. 99, 191-0, p. 2Z 
 
 Describes apparatus used, by the Bureau cf Mines, 
 
 730. Rzehulka, A. samp.Un^ and valuation of crcs. Win, Jcur,, vol. =>7, 1912, 
 
 p. 668; abstr. f r bin Kent arils wi^sche Rundschau, April 16, 1912. Describes 
 
 methods of s*u~plin. ore in mines and in cai-ioaas. 
 
 731. Saint-Smith, E,C, Eij-, Wonder syndicate s auriferous lodes. Queensland 
 
 G-cv. Min. Jcurl, vol. 16, 19 15, pp. 211-215. Rspc rt of examination of 
 mire, Describes the saiplin^ of ore in. place. 
 
 732. t _ Mount Mascotte cold mine, Australia. Queensland Gcv. 
 
 Min n Jour., vol. 16, 1915, pp. 320-322. Report of examination .of mine. 
 
 733. Sale, A,J, Drilling and analysis of copper ores. En . ana Min. Jour., vol 
 
 102, 1916, pp, 87-90; criticise., p. 231. Discusses errors that may occur 
 from the usual methods of figuring averages f TOIL churn-drill hole samples 
 and the application of the lav of compensating errors. Comments en HS- 
 sayirij, of churn-drill samples. 
 
 733. (a) Sampling and Estimation of Ore in a Mine, "by T,A. Rickard and 26 other 
 
 1st, ed. , 3.90-i, p. 222. 5th impression, 1907. Reprint of articles in 
 Eng, and Min. Jour., vols. 75, 1903; 76, 1903; 77, 1904. Reference num 
 bers to contributors are 26 a; 40 a; 48: 90; 126; 128 a; 157; 167 a; 
 167 b; 184; 336 a; 342 a; 428 a; 499 a; 505 a; 513; 5^6 a; 567 a; 653 a; 
 658; 686 a; 705 a; 710 a; 773 a; 79<i a; 822 a; 862 a. 
 
 734. Sampling, definitions cf A.H. Fay, Bull. 95, U.S. Bureau of Mines, 1920, 
 
 p. 589, 
 
 735. Schuette , C.N, Sampling and estimation cf quicksilver ore, Min. ana Sci . 
 
 Press, vol. 122, 1921, p. 293. Ordinary groove samples unsuitable for 
 cinnabar, but pan samples are reliable. 
 
 736. Scientific American. Whjn cca! is not coal until it is analyzed, f el . 116 
 
 1917, p. 555. Describes and gives view of a irachine for pulverizing coal 
 and taking a sample. 
 
 737. Scobey, Jesse. La Luz and Los An^.elss mine, Nicaragua. Eng. ?.nl Min, Jour 
 
 vol. 110, 1920, p. 6. Sampling a peculiar told, ore deposit. 
 
 Ore sampling without machinery. Met. and Chem. En fc . , vol. 
 
 11, 1913, pp. 83-86. Explains and illustrates hand sampling. 
 
 739 ____ . Sampling mill work. Min. and Sci. Press, vol. 83, 1901, 
 
 p. 119. Discusses methods for determining the per cent of extraction in 
 which samplers are usei, 
 
 740, Scott, C.E, Commercial sampling of coal. Mine s and Minerals, vol. 33, 
 
 1912-13, pp. 199-201. Discusses precautions necessary to secure an ac 
 curate sample. 
 
 -58- 
 
41, _____ . Itfecnanic&l coal sampler. Mines and. iviinerals, vol. 3T 
 
 1910-11, p. 169-170. Describes and giires plan of sampler. 
 
 42. Semple, C.C. A Steaa Sample -arier, Eng, and Min. Jour., vol. ^1, 1211, p. 
 
 799. Describes a stecua-J acket sample drier. 
 
 43. _ _. Dewatering slime sables, Eng. and Win, Jour., vol. bl, 1911, 
 
 p. 407. Describes a small wooden filter for dewatering slime samples. 
 
 44. ___ _. Samplin^ ores containing metallics. En L . and Miri. Jour., vol. 
 
 82, 1906, p. 362, Discusses method. 
 
 45. Sen, Janshi. Valuing placer ground. Min, and Sci. Press, vol. 122, 1921, p. 
 
 704. Discusses placing of drill-holes and calculating results. 
 
 86. Separk, E.A. Some aspects of the analyzing and grading of iron ores of the 
 Gogebic Range. Trans. Lake Superior Min, Inst., vol. 10, 1904, pp. 103- 
 117; discussion, pp. 117-126. Describes methods of sailing, used, 
 
 47. Seyler, C.A. Composition and analysis of coal. Practical Coal Mining . 1908, 
 
 vol. 1, pp. 72-73. Discusses sampling coal at a mine or in trucks for 
 analysis. 
 
 48. Sewell, F,W. Mining and metallurgy of copper, silver, lea.i, and zinc. Trans. 
 
 Aust. Inst. M. E., vol. XII, 1907, p, 108. Flow-sheet of Wallaroo and 
 Moonta mill sh<~ws position of sampler. 
 
 49. Sharpless, F.F. Mill-tests v, hand- samp lint. Min. and Sci, Press, vol. 115, 
 
 1917, p. 638. Discusses methods. 
 
 50. Sharwood, W.J. A note on sampling. Jour. Ini. and Eng. Chem. , vol. 4, 1912, 
 
 pp. 227-229. Discusses possible errors in sampling. 
 
 51. __ . Measurement of pulp and tailin^. Min. Mag., vol. 1, 1909, 
 
 pp. 226, 297; vol. 2, 1910, pp 45-53. Discusses measurement of sand in 
 vats, capacity of filter-presses. Measurement of tonnage crushed in mills 
 and flow measurements* 
 
 52. Shaw, A.M. A tailin^ sampling device. Eng. and Min. Jour., vol. 101, 1916, 
 
 p. 223. Describes and illustrates an augur for sampling, dry tailings, 
 
 53. Shaw, E.N. Discrepancies in cyanidation. Min. and Sci. Press, vol. 113, 
 
 1916, pp. 92-94. Discusses errors in sampling and in assaying. 
 
 54. Shaw, S.F. Combination method, of mine sampling. Min. and Sci. Press, vol. 
 
 120, 1920, p. 629. Eight specific comparisons of mill tests with hand 
 samples. 
 
 55. __ . Mine sampling. Mm. Mag., vol. 5, 1911, pp. 457-<*60, Describes 
 
 method used in Costa Rica and gives stope assay-map of gold vein, 
 
 -59- 
 
756. Sheldon, G. L. Salted ^ines. JEng. ani Min. Jour., vol. 96, 1*13, pp. 11] 
 
 1114. Describes some unusual methods, 
 
 757. Shellshear, W Flotation of gold-copper ore at Mt. Morgan, Queensland, 
 
 Proc. Aust. I. M. E., No. 22, 1918, p. 58. Sailing 1< sections of proc 
 ucts from a Wilfley table. 
 
 758. Shepard, F. E. Progress in mill design. Eng. and Min. Jour., vol. 93, 
 
 1912, pp. 543-547, Discusses automatic sampling. 
 
 759. Shimer, P. W. Device for sampling iron andother metals. Trans, Am. Inst, 
 
 Min. Eng. , vol. 30, 1901, pp. 321-323 , Describes ana rives figures 
 showing device for taking samples from a pile of pig-iron. 
 
 760. Shimmin, J. T. Re-modeled Arizona Hercules concentrator. Eng. and Min. 
 
 Jour., vol. 109, 1920, p. 1116. Flow-sheet shows position of 3 samplers 
 which have 3 minutes between cuts, 
 
 761. Shiras, Tom. Bauxite mining in Arkansas. Eng, and Min. Jour., vol. 107, 
 
 1919, p. 1074. All crebodies are sampled as soon as found, 
 
 762. Simmons, Jesse. Trojan milling practice, South Dakota. Min. ana Sci . 
 
 Press, vol. Ill, 1915, pp. 707-710. Describes method in automatic 
 sampling and causes of error. 
 
 763. Simons, E. H, The accuracy of commercial samples and assays. Calif. Joui 
 
 of Tech., vol. 2, Nov. 1903, pp. 8-14; abstr, in Min. and Sci. Press, 
 vol. 88, 1904, pp. 9 and 27, Discusses accuracy attainable in everyday 
 sampling, 
 
 764. Simpson, G. Calculation of extraction in cyaniiation. Eng. ana Min. Jour 
 
 vol. 96, 1913, p. 1230. Discusses accuracy of motor-discharge sample 
 and crushing in cyanide solution. 
 
 765. Simpson, Duncan, Sand sampling in cyanide works, Trans. Inst. Min. ana 
 
 Met,, vol, 16, 1906-07, pp. 30-39; discussion, pp. 38-41. Describes ana 
 discusses eight methods used at the New Goch Gold Mine. 
 
 766. Sleeman, H. R. Mill tests v. hand sampling. Min. ana Sci. Press, vol. 11 
 
 1919, p, 415. Discussion of Morten Webber s paper in same Journal in 
 1918. Also vol. 119, 1919, p. 143 and p. 701, bulk v. hand samples; ana 
 in vol. 115, 1917, p. 563. 
 
 767. . Sampling of mines, Min. and Sci. Press, vol. 12],, 1920, 
 
 p. 405. Sampling errors. 
 
 768. Small, F. H. Sampling and preparation of leather for analysts; Am, Leathe 
 
 Chem. Assoc. Chem. and Met, Eng., vol, 24, 1921, p. 1095. Methods de 
 scribed are applicable for sampling leather belting deliveries at mines 
 or metallurgical plants. 
 
 768. (a) Smart, R, C. Coal-dust sampling and methods adopted in practice, 
 
 South Wales (England) Inst. of Eng. March 1921, abstr. in Iron and Coal 
 Trades Review, vol. 102, 1921, p. 753. Discussion of sampling coal aust 
 in mines, with sketches, A vacuum cleaner is used in some cases to cleai 
 out crevices. 
 
 -60- 
 
Sruith, C.A South-western Pert land, cement works; En b . aria iviin. ocar,, vo, 
 96, 1913, pp. 719-723, Describes hourly saaiplin L of all the limestone 
 crushed . 
 
 Smith, C.E". . Some sources of error in the iodoinetric determination of copper, 
 Met. arid Chem. En b ., vol. 14, 1916, pp. 379-380. Discusses methods to 
 obtain accurate samples, 
 
 71. Smith, E.A. Note on the sampling of geld alloys. Chemical News, vol. 93, 
 1906, pp. 225-226. Discusses scraping and cuttin 6 samples of go la alloys 
 used by jewelers and goldsmiths. 
 
 Sampling and assaying the precious metals; in ores, oullion, 
 
 and products. Discusses sampling of go Id- silver alloys. 1913, <60 pp 
 
 73. Smith, E f A.Coppelen. Sampling and testing the Chuqui cairata oreboay, En 6 . 
 
 and Min, Jour,, vol. 97, 1914, pp. 1015-1016. Describes testing of drill 
 hole samples and selection of large samples for leaching tests. 
 
 (a) Smith, E,C. Mine sampling. Eng. ana Min. Jour., vol. 76, 1903, p. 61*. 
 Claimed that hand sampling does not serve for mines, but taking out 
 wheelbarrow loads ana mill-tests will. Assaying is discreditea. 
 
 Smith, F.D. Sampling ores for assay. Min. and Sci. Press, vol. 76, 1898, 
 p. *92 , Discusses inaccuracies of hand sampling. 
 
 775. Suiith, H ,D. Sapling lcw- b rade ore bodies. Min. and Sci. Press, vol. 114, 
 
 1917, p. 293. Discusses practicability of runnint mill tests en lar^e 
 boaies of }.ow- grade O olo. ere. 
 
 776. Smith, M.B. Sampling coal deliveries. Elect. Ry. Jour., vol. 42, 1913, pp. 
 
 1242-1243. Compares five methods of R.O.M, sampling. 
 
 777. Smith, W.A.G. Sampling at Great Coban, Australia. Proc. Aust, Inst. M. ., 
 
 No. 36, 1919; p. 75; abstr. in Min. Mag., vol. 23, 1920, p. 48. Twelve 
 nen, in six sets of two each, used a 7-lb, hammer and chisel-pointed steel 
 to sample the copper ore. Two pounds per foot was taken. The paper cov 
 ered sampling in all classes. of workings, reduction of samples, recording, 
 and plans. 
 
 i\v* t & 
 
 778. Siacct, A.M. Mathematics of copper samplin-,. Eng. and Min. Jour,, vol, 93, 
 
 1912, p. 1213, Comments on article by Edward K&ller, 
 
 f . * < fV*99vQ " V 
 
 Sampling silver ore, Trans. Can. Min. Inst., vol. 17, 1914, pp. 
 
 239-250. Describes methods of sampling and assaying crude silver ore at 
 Cobalt, Ontario. 
 
 780. Snelliru , W.O. and Storm, C.G. Analysis of black powder and dynamite. Bull. 
 
 51, Bureau of Mines, 1913, How to sample sticks of dynamite and grains of 
 powder, pp. 12 and 68. 
 
 781. Bohnlein, M.G.F, Amari can tin-slag analysis, En^, ana Min, Jour., vol. 107, 
 
 1919, p. 576, Steps in ass^yin^ a sample of sla t . 
 
 -61- 
 
782. Someriasir, . Moisture in coke. Mines anc. Minerals, vol. 28, 1907-03, 
 
 pp. 430-431. Discusses importance of proper care of samples for an^ly-oi 
 
 783. Sorley, D. Notes on sauzplin^. Jour. Sec. Chem. Ind,, vol. 13, 189-i, pp. 
 
 975-976; Glasgow City Analysts 1 Soc. 1893-94, no. 4. Gives directions 
 for samplin^ iron ore, pyrite residues, basic slat;, Pi& iron, wood pulp, 
 and sulphate of arnaionia and of potash. 
 
 784. Spaulding, E.P. Mill-tests v. Hana-saqplin. , Min, and Sci . Press; vol. 1 
 
 1917, pp. 301-302. Coui~ent on article by Albert Burch. 
 
 785. Speak k S.J. Lead-zinc deposits at Broken Hill, northern Rhodesia. Min. 
 
 Mag., vol. 21, 1919, p. 203. Sauiplin^ peculiar deposits by diamona-cLnl 
 
 885. (a) Sperry, E.A. Invest i^atioi of Feather River BldCk sands, Calif ornii. 
 Min. and Sci. Frees, vol, 105, 1912, p. 624. S-^d bars or beaches were 
 saiopled by shoveling or puupin^, and samples assayea in the field. 
 
 786. Stadeler, A. Sr,mplin L - of ores and coal. Stahl and Eisen, vol, 38, 1918, 
 
 pp.25 and 51. Methods used in Sweden and United States. 
 
 787. Staley, H.F. and Beecher, M.F, Practical handling of IOWA clays with appli 
 
 cation of ceraoac principles. Iowa State College, Bull. 43, Oct. 10, 19] 
 48 pp. Describes proper way to sample prospects, pp. 6-7, 10. 
 
 787. (a) Stander, H.J, Mill and smelter raethods of samplim_. Arizona State 
 
 Bureau of Mines , Bull. 26, 1915-16, p. 12. Advice to producers wfco ship 
 ore to custon plants, and brief notes on hanl and mechanical sampling 
 methods. 
 
 788. Stanton, Horace. Mine samples as baggage. Min. and Sci. Press, vol. 114, 
 
 1917, p. 433, Argues that railroads should check mine samples as persons 
 baggage. 
 
 789. Stead, J.E, Gas- test ing and saoplin^ apparatus. Jour. Soc. Cheu* Ind., 
 
 vol. 8, 1889, pp. 176-178. Describes method and apparatus for testing ga 
 from fires for which coal or coke is the fuel. 
 
 790 __ New form of &as sampler, Ircn and Steel Journal, no. 1, 1884, 
 PP. 187-189. Describes device for sailing blast furnace bases. 
 
 791. Steel, Donald. Valuin^ placer ground. Min, and Sci. Press, vol. 109, 191* 
 
 p. 845. Drill-hole sample calculations. 
 
 792. Steele, J.H. A model tramway and sampler. En^. and Min. Jour., vol. 72, 
 
 1901, pp. 596-597. Describes mill and methods of saugplin^ lead- silver or 
 at Park City, Utah. 
 
 793. Steinem, C. A solution meter. Eng. and Min. Jour., vol. 92, 1911, p. 675. 
 
 Describes a oieter to measure solutions and .Uso in some case tailings and 
 
 concentrates. 
 
 -62- 
 
794. Sterner-Rainer, Roland. Mercury .production at Alaaden, Spain, Oster^einh. 
 Zeit. fur Ber^urrl Huttsn, vol. 62, .1914, p. 529. Abstr. in Chem. and // .it, 
 Ena,., vol. 20, 1919, p. 32. Su^plin^ cinnabar. 
 
 794. (a) Stevens, Blarney. Method of least squares as applied. to mine 
 
 En^. and Min. Jour., vol. 76, 1903, p. 265. Calculations cf ore reserves 
 based on s.vopling . 
 
 795. Stewart, J.B. Presenting assay results by ^rctphic ii-ethod. Min. and Sci. 
 
 Press, vol. 104, 1912, pp. 654-657. Gives practical advice on tne ior.ii of 
 reports of uine valuation. 
 
 796, Sticht, Robert C. Minin... ana salting at Mount Lyell, Tasmania. Min. Ind. , 
 
 vol, 26, 1907, pp. 385-442. Describes sanplin^ works and methods, p. 428. 
 
 797. Stockhausen, P. Liquation in cyanide bars. Proc. Chei^. Met. and Min, Sec. 
 of S. Africa, vol. 2, 1697, pp. 46-50, discussion pp. 50-52. Compares 
 dip, drilling and cutting sarrples and advocates dip. 
 
 797. (a) Storm, C.G. Analysis of permissible explosives. U.S. Bureau of Mines 
 
 Bull. 96, 1916, On p. 12 is described the method of sampling aynaxLite 
 cartridges. 
 
 798. Stores, W.H. Difficult mine saaplin^. Min. rud Sci. Press, vol. J.14, 1S17, 
 
 p. 361. In sampling soft and hard ore the former may salt the latter. 
 
 799. _ . Errors in mine samplin^. Min. and Sci. Press, vol. 103, 1911, 
 
 p. 112, Comments on article by Morton Webber, 
 
 800. Stowell, E,G. and Coghill, W.H. Flotation of low-grade <}uick-silver ore. 
 
 Min. and Sci. Press, vol. 120, 1920, p. 117. Preparing samples of cinna 
 bar for assay. 
 
 801. Strauss, L.W. Chilean nitrate industry. Min. and Sci. Press, vol. 108, 
 
 1914, pp. 972 and 1014. Sampling caliche deposits and finished product. 
 
 802. Stromeyer, C.E. Coal sampling. Coll. guard., vol. 102, 1911, pp. 112s- 
 
 1126. Discusses relation of size of .sample to lindt of error, 
 
 803. Stuckenberg, W.D. Triplicate sampling of "coal. Power, vol. *4, 1916, pp. 
 
 612-614. Discusses accuracy of triplicate sampler and gives proper 
 methods of fillint cans for sampling. 
 
 804. Swain, P.W. Commercial sampling and analysis of producer gas. Trans, Am. 
 
 Soc. Mech. Eng,, vol. 38, 1916, pp. 961-977. Describes methods and ap 
 paratus, pp. 963-968. 
 
 805. Swart, W.G. Marking samples. En t ,. and Min, Jour., vol. 79, 1905, p. 814. 
 
 Suggests cutting sample nuober on small pieces of wood and enclosing with 
 the sample. 
 
 805. (a) Taggart, A..F. Boring. Section 9 of Peele s Mining Engineers 1 Hand 
 book, 1918, pp. 307-376. Details of all kinds of drilling ana getting 
 samples. 
 
 -63- 
 
806, Taylor, J.E. Mechanical ore sampler. &i t . . ana Mi n. Jour., vol. 100, 1915, 
 p. 2/29. Describes a dsvice for daily ssv.plini. of s^-all au iounts of ore. 
 
 307. Taylor, L,H., jr. Salted drill samples of Ellipic Mine, En fe . and Min. 
 Jour., vol. 96, 1913, pp, 269-270. Describes tests tc discover 
 
 809. Taylor, V/.W, Sampling certain ores. ETU; . and Min. Jour., vol. 63, 1897, p. 
 160. Describes .r^thod used in sjuq>lini. jigged iron ore. 
 
 809. Text-bock of Rand Metallur t ical Practice. 1912, A vols. Treatises by 
 
 various nlnin& authorities; discusses "S?uilint,, ^rading and assays", vol. 
 1, pp. 79-61. "Sampling," vol. 1, pp. 168-170~ ^91-29^, 33<*. 
 
 810. Textcr, Oscar. Standard -etncds of saiiplin^ cargoes of iron ore. Proc. 
 
 Lake Superior tain. Inst. , ycl. 13, 1906, pp. 231-2-j>3. Describes ir.ethcas 
 
 311. The Tinies, London, EnGineerin^ Suppleiient* Fuel s u-plin^ Jan. 26, 1917. 
 
 812. Thesis, A.C. Ore ssu^plin .... Trans. Aust. Inst. Min. En.., vol. 10, 1902, p. 
 276; Australian Min. Stjjidr.rd, vol. 3c, ISO*, p. 265. Discusses princi 
 ples and suitable tools. 
 
 812. (a) Thomas, Kirby. Test drilling on the Me sab i iron ran^e. Sn^ . and Min. 
 
 jour., vol. 75, 1903, p. 896. Diamond-drilling , sa^pl in& the sludge, 
 placing holes. 
 
 813. Thompson, H. Notes on reduction of ^old ores. Min. and Sci . Press, vol. 25 
 
 1872, p, 274. Discusses sampling from stamps and 
 
 814. Thompson, R.W. Notes on sauplin t as practiced on the Rnd. C^n. Min. Jour. 
 
 vol. 32, 1911, pp. 307-308. Describes rsethods of sacplin^ gold ore. 
 
 815. Thoir^on, F.A. Metallics in sampling work. West. Chem. and Met., vol. 3, 
 
 1907, pp. 16-19. Abstr. in Eng. and Min, Jour,, vol. 83,. 1907, p. 645; 
 and Jcur. Chen. Met. and Min, Soc, S. Africa, vol. 7, 1906-07, p. 420. 
 Shows difficulties of sailing ore containing ^tallies. 
 
 616. Thomson, H.N. and Sicka, L.T. Tooele plant of International Smelt ing and 
 Refining Co, Trans, Am. Inst. Min. Eng., vol. 46, 1913, pp. 940-955; 
 abst, in Min. and Eng. World, vol. 39, 1913, pp. 291-293. Describes 
 sampling mill, p, 941. 
 
 817. Thome, W.E. Churn-drill saiLplin^. Min. and Sci. Press, vol. 98, 1909, pp. 
 
 358-359; consent, p. 549, Discusses precautions to prevent errors in the 
 samples; drill sr.mples are unreliable for indicating gold, ?.ncL should be 
 checked by shafts. 
 
 818. Thornhill, E.B. V*lue of dredging ground. Min. and Sci, Press, vol. 109, 
 
 1914, p. 105. Placing of drill-holes for sampling, and calculations. 
 
 819. Thornton, Edward. Sampling low-grade orebodies. Min, and Sci. Press, vol. 
 
 !!<*, 1917, pp. 469-470. Describes sampling with a stoper-drill. 
 
 -64- 
 
. Thunuand, F. LeRoi , The Swansea uill, Arizona. Min. and Sci. Prjss, vol. 
 120, 1920, p. 606. Sampling copper tailings, 
 
 21. Tracy, L.D, Mine-w, .ter neutralization plant at Calu.^t uine, P*. Min, d,r.d 
 
 Met., No, 161, 1920. p. 29. gaudies of water come from boreholes, 
 
 , Tracer, E-A. Laboratory metncd for examination of well cuttings, Econ. 
 eol,, vol XV, No. 2, 1920, p> 170. Samplin- drill cuttings from oil- 
 wells. 
 
 22. (a) :Treadv. r ell, J.C. Ore developed. En^ . and Mm. Jour., vol. 75, 1903, 
 
 p. 66C. Rich pockets in ore- shoots sometimes not revealed by sampling. 
 
 23. Trewart ha- James, V .H. Taylor s pulp sampler. Trans. Inst. Min. and Met,, 
 
 vol. 25, 1915-167 pp. 185-189; discussion, pp. lb9-225. Describes sampler 
 used in Ej.st Pod Tin Alines in Cornwall. 
 
 :~. TruscoU, S.J.- .The V/itv;atersrand fc cld fields. 1902, 517 pp. Sampling and 
 ore valuation, Chd.pt er XIV, pp. 304-334. Stope plans, Chap. XV, p. 364. 
 
 25. Tupper, C.A. Copper production of Great Ccbr, Ltd. Min< and -Rife. V/orla, 
 vol. 40, 191-,, pp. 363-366, Describes methods of sampling copper ore by 
 machine. 
 
 26. Turnbull, Thorns. Notes en samplinV fcr L cld. Trans. A^st . Inst, Min. 
 
 En b ., vol, 3, 1895, pp. 71-74. Discusses sampling alluvial gold ana 
 quartz ore and the merits of dish tests, 
 
 27. Tweedy, R,F, Saiaplin^ large low-grade orebodies. Efa. and Min. Jour., vol. 
 
 104, 1917, p, 522. "Discuss possibility of too low a valuation of ore in 
 a mine. 
 
 28. Tyrzell, F.G. Sar-.plin. s,nall lots. Min, and Sci. Press, vol. 114, 1917, 
 
 p. 251. Defends honesty of sirelter samplin^. 
 
 J29. Tyssowski, John. The new International Smeltery at Tooele, Utah. En^, and 
 Min. Jour., vol. 89, 1910, pp. 865-867. Describes sample mill of the 
 Bruntcn type. 
 
 330. Vail, H.H. New -smelting works of Arizona Copper Co, -I. Eng. and Min. 
 Jour., vol. 97, 1914, pp. 1279-1283, Describes sampling mills. 
 
 1. . The El Paso smelting works. En^. and Min. Jour., vol. 98, 1914, 
 
 pp. 465-68. Describes s?mplin, mills, pp. 466-467. 
 
 332. Van Zwaluwenber^., A. Principles of ore sampling. Mines and Methods, vol. 1, 
 
 1909, pp. 69-71, Discusses theory and machinery. 
 
 333. . , Sampling by machine. En^. and Min. Jour., vol, 87, 
 
 * 1909, p. 420. Discusses article by J.A. Church, vol. 86, 1908, p. 113. 
 
 334. Verschoyle, W,D. An emergency sampler. En^,. and Min. Jour., vol. 80, S905, 
 
 pp. 485-486. Describes a cheap and accurate device for small samples, 
 easily constructed and resembling the Jones sailer . 
 
 -65- 
 
835, Vogelstein, Ludwig, Sampling of spelter. En^. and Min. Jour., vol. 102, 
 1916, p. 432. Pleads for binding regulations governing sampling and 
 testing, coniLents on editorial on the subject, p. 108. 
 
 835. (a) von Bernewitz, M,W. Customs treatment at Kalgoorlie, Western Australia 
 
 Min. and Eng. Review, vol. VI, 1912, p. 229. Sampling oxide and sulpho- 
 telluride ores. 
 
 836. __^ . Filter-pressing. Trans. Aust, I. M, E. , vol. 15 
 
 (1), 1911, p. 153. Samp line ore residue in filter-frames. 
 
 836. (a) . Metallur L y of California Mother lode. Min. and 
 
 Sci. Press, vol, 108, 1914, p. 65, Sailing tailing at South Eureka mill 
 
 836. (b) . Present metallurgical practice at Kalgoorlie 
 
 Western Australia. Min. and Eng. Review, vol. V, 1911, pp. 13-19. Hew 
 12 different plants sample 140,000 tons of ore and residue monthly. 
 
 837. von Bernewitz, M.W. and Osborn, H.S, Prospectors Field-Book and Guide. 
 
 9th edition, 1920. Theory and practice of sampling discussed, 
 
 838. Wagner, W.H. Mine sampling. Min. and Sci , Press, vol, 120, 1920, p. 451, 
 
 Practice at North Butte mine, Montana. Editorial comment on p. 439. 
 
 839. Wallace, D. Tricks in ore buying. Eng. and Min. Jour., vol. 82, 1906, p. 
 
 1079 and 1128. Describes frauds chiefly in Mexico. 
 
 840. Walton, v;.L. Calculation of recovery in concentration. En L . and Min. Jour 
 
 vol. 90, 1910, p. 541. Criticises methods proposed by (F.J, Hoover and 
 R.S. Handy. 
 
 841. Ward, W.F, Preliminary sampling of placer t. round. Eng. and Min. Jour,, 
 
 vol, 95, 1913, pp. 702-704. Describes drilling outfit and its use. 
 
 842. Warwick, A,W. Hand sampling in small mills. West Chem. and Met., vol. 1, 
 
 1905, p. 138; Min. and Sci. Press, vol. 91, 1905, pp. 274-275. Argues foi 
 accuracy in sampling, and describes methods of hand sampling,, 
 
 843. . Notes on sampling. 1903, 41 pp. 
 
 844. . Ore in si b ht. Mining fieporter. Vol. 46, 1902, pp. 416, 43d, 
 
 460, 507; vol. 47, 1903, pp, 28, 54. Discusses principles and method of 
 valuing ore in place. 
 
 845. . Sampling of mine and mill dumps. Mining Reporter, vol. 47, 
 
 June 11, 1903, p. 540. Discusses difficulties in sampling. 
 
 846. . Sampling mill dumps or tailings ponds. Mining Reporter, vol, 
 
 50, July 21, 1904, p. 59. Describes the sampling of a mill dump, 
 
 847. Waterhcuse, L.V. Flotation at Mt. Lyell, Tasmania. Froc, Aust. I. M. E. , 
 
 No. 38, 1920, p. 117. Abstr. Min. and Sci. Press, 123, 1921, p. 87. 
 Sampling copper ore and concentrates, and drawings of apparatus. 
 
 -66- 
 
;48 . ^ . Flotation practice at Mt . Lyell, Tasmania, Min. 
 
 and Sci. Press, vcl. 123, 1921, p. 87, Sacplini. coarse ore, concent r?r:e, 
 tailing, and pulp in the copper mill, 
 
 49, Watson, E.G. Prospecting,. Min, a .id Sci, Press, vol. 122, 1921, p. 7*2. 
 Sampling surface dirt and costeans for gold. 
 
 $50, Watt, A. P. Concentration Practice in Southeast Missouri. Trans. Am. Inst. 
 Min, Eng., vol. 57, 1917, pp. 322-411. Criticizes sampling methods at 
 mills, p. 400. 
 
 }51. Watts, A.S. Fieldspars of New England and North Appalachian states. U.S. 
 Bur. Mines, Bull. 92, 1916, 131 pp. Gives results of examination of 
 deposits and tests of sample s. 
 
 352, Watts, W.L. Ex-jrdnation of prospects and mines. Min. ana Oil Bull,, vol. 
 
 1-2, Feb. 1915, p. 55. Discusses duties of examining engineer, principles 
 of sampling, and methods of estij.- ting values. 
 
 352. (a) Weather bee, D Arcy. Dred fc in b for gold in California. 1st. ea,, 1907, 
 
 p. 217, Appendix of 30 pages consists of contributions by J.H. Curie, 
 T.A. Rickard, G.L. Hola.es, and C.W. Purin&ton. Prospecting, "drilling and 
 sampling are fully covered. 
 
 353. Webber, Morton. Combination method of cine sampling. Min. and Sci. Press, 
 
 vol. 120, 1920, p. 303. Mill tests as a check on moil sampling. Editor 
 ial comnent in same issue, p, 203. 
 
 354, . Detection of salting. Min. and Sci. Press, vol. 11$, 1919, 
 
 p. 673. How salting cay be done, and how to circumvent it. 
 
 355. . Latent errors in mine sampling. Min. Mag,, vol. 12, 1915, 
 
 pp. 99-101. Discusses causes and means of avoiding, errors, 
 
 356. . Mill-tests v. hand - samp 1 i n , Min, and Sci. Press, vol. 115, 
 
 1917, pp. 125-129. Describes three methods used in sampling three dif 
 ferent kinds of mines. 
 
 857. 4 Mill tests v. hand sampling. Min, and Sci. "Press, vol. 
 
 118, 1919, p. 417. Discussion of H.R, Sleeman in same issue. 
 
 858. . Sampling an erratic ore body. Min. and Sci. Press, vol. 
 
 114, 1917, pp. 792-793. Criticizes article by L.A. Parsons. 
 
 859. , Sampling of mines. Min, and Sci. Press, vol. 113, 1916, 
 
 p, 846. Describes method in whi di mixing is timed so as to mix e^ch 
 sample thoroughly. 
 
 860. . Systematizing large mine examinations. Min, ana Sci. Press, 
 
 vol. 121, 1920, p. 233. First study the mine, then whitewash the places 
 to be sampled by the sampling crew. Checking assayers by false numbers 
 on similar samples. Editorial comment on p, 223. 
 
 -67- 
 
861, ____ _, Unavoidable errcrs in sampling. Min. and. Sci . Pres 
 vol. 102, 1911, p7 6<*6, comments, p. 636; vol. 103, pp. 51, 11^. Die- 
 cusses the causes of discrepancies between mill yield and average, 
 indicated by 
 
 862. __ ___. Valuin_ partly exhausted mines. Min, and Sci. 
 
 Press, vol 122, 1921, pp, 385 and 489. Although seldom mentioned, 
 sampling is inferred throughout these two articles, 
 
 662. (a) Weed, W.H. Mine sampling. En^, and Min, Jour., vol, 76, 1903, p. 80. 
 Assistance in sampling condition of face tc be sampled, catchin^. sample 
 quartering marking, where to s.mple, valuing a block of ore, dressing 
 and salting mines. 
 
 863. Weeks, F.D. The Salida Smelter, Colorado. Trans. As. Inst. Min. n t ., vol 
 
 52, 1916, p. 711-715. Describes methods of sju.-plin^ lea bullion. 
 
 664. Weigall, A.H. and Mitchell - Roberts, J.F. Operations on the Suan Ccncessi; 
 Korea. Min. ana Sci. Press, vol, 119, 1919, pp , 601 ana 609. San:plin b 
 underground and in the 
 
 864. (a) Westervelt, W.Y. Mine examinations, valuations, ana reports. Section 
 25 of Peele r s Mining Engineers Hand-book", 1^18; also numerous briefs 
 on sampling throughout the book. 
 
 365. Wet hey, A.H, Smelting plant of the Butte Reduction Works. Eng. ana Min. 
 Jour., vol. 66, 1909, pp, 1153-1155. Gives diagram of crusher-house 
 sampler. 
 
 b66. Whitaker, O.R. Report of Smelter and Ore Investigation Committee, Colorado, 
 .917. Abstr. in Eng. and Min. Jour., vol. 107, 1919, p. 66. The report 
 of 172 pages contains much on methods of sampling, assaying and settle 
 ment of ore shipments. 
 
 667. White, E.E. Surveying and Sampling diamond drill holes, Trans. Am. Inst. 
 
 Min, Eng,, vol. 44, 1912, pp. 69-90; abstr. En L . and Min. Jour., vol. 92, 
 1911, pp. 676-677, Describes saving of samples of sludge from diamond 
 drill holes in the L?.ke Superior iron districts. 
 
 868. White, Franklin. Errors in sampling and assaying ores due to the presence 
 
 of coarse gold. Trans. Inst. Min. and Met., vol. 22, 1912-13, pp. 620- 
 640; discussion, pp. 640-660; Min. ana Enr . World, vol. 38, 1913, pp. 
 1043-1047, 
 
 869. White, L.C. No. 1 concentrator of Mountain Copper 60., Calif. Min. and 
 
 Sci. Press, vol.- 119, 1919, p. 331. Flow-sheet shews position of tailin, 
 sampler. 
 
 670. Whitney, J.D. Ore in si.ht. Min. and Sci. Press, vol. 102, 1911, p. 596. 
 Discusses erroneous mine valuation. 
 
 871. Wiard, E.S. Ore dressing in the Coeur dAlenes. En b , and Min. Jcur., vol. 
 by, 1910, pp. 875-o77. Describes crude methods used, the Haul tain sample 
 or wet sands, assay methods, and fire-assay for low-grade ore. 
 
 -68- 
 
872. Wiley, W,j*. Sampling and preparation of raw material for analysis at 
 
 South Works, Illinois Steel Co. Jour. Inci. &:E,Chem., vol, o, 1911, pp. 
 103-108. Describes methods and gives plans of sampling house. 
 
 673. Williams, Albert, jr. Metal mining. Coll, Eng . and Met. Miner, vol. 15, 
 
 1894, pp. 1-3. Describes methods of obtaining and preparing ore samples. 
 
 874. __ .A .Popiilar fallacies regarding previous-metal ore 
 
 its. 1884, pp. 257-271; 4th annual report of the U.S. Geol. Surv., 1384, 
 pp. 253-271. Gives advice for mine 
 
 875. _ __ Public sampling works. Eng, Mag,., vol. 3, 1892, pp. 
 
 34-43. Gives procedure of sampling in public works. 
 
 876. v/illiams, D.J. Sampling the Main Reef series. Proc. Cheu. and Met. Soc. S. 
 
 Africa, vol. 3, 1902-03, pp. 160-171; Min. and Sci. Press, vol. 86, 1903, 
 pp. 165-166; discussion 171-177. Discusses problems of underground en 
 gineering and gives sectional drawing of reefs. 
 
 877. Williams, L.B. Importance cf efficient mine sampling. Monthly Jour, Cham. 
 
 of Mines, W. Australia, vol. ~, Nov. 30, 1914, p. 304. 
 
 878. V/illien, L.J. Coal gas candlepcrwer. Am. Gas Light Jour,, vol. 102, 1S15, 
 
 pp 219-220, discussion, p. 317. Describes methods of sampling gas in 
 order to test it for candle powers, 
 
 . 7/illis, Charles F, Selling a prospect. Ariz. Win. Jour., vol. *, Aug. 1920, 
 p 23. Importance of correct sampling of prospects. 
 
 660. Wilson, J.B. Mount Morgan, Australia, mine records and assay plans, Eng. 
 and Min, Jour., vol. 89, 1910, p. 710. Describes methods used. 
 
 860* (a) Winchell, N.H. and H.V. Iron ores of Minnesota. Geol. and Mat. Historj 
 Survey of Mines, Bull, 6, 1891, p. <*29. Sampling of tne ores pp. 186-188. 
 
 681. ?/ise, O.B. Duty and sampling of lead ores. Mining, vol. 1, 1896, pp. 298- 
 301; abstr. in Min. and Sci. Press, vol. 73, 1896, p. 132. Consents on 
 act of Congress on the sampling of lead-silver ore from Canada. 
 
 381. (a) Woakes, E.R. Highland ore dressing mill, B.C. En t . and Min. Jour,, vol. 
 74, 1902, p. 852. Lead-silver ore and tailing is sampled every 15 minutes. 
 
 882, Wolcott, C,E. Sampling ore in the Cripple Creek District. Mining Reporter, 
 
 vol. 50, Sept. 8, 1904, pp. 241-3*4. Gives methods of sampling with dia 
 grams of schemes for several companies. 
 
 883. V/olf, A.G, Flow-sheet conventions. Ewg. and Min. Jour., vol. 109, 1920, p. 
 
 380. Symbol for sample-cutter in flow-sheets. 
 
 844. _ . Sampling nine floors. Eng. nd Min, Jour., vol. 104, 1917, pp. 
 1111-1112. Discusses difficulties and water control in floor sampling. 
 
 -69- 
 
685. Wood, G.W. The Rochester mill. Nevada, Win. ana Sci . Press, vol. Ill, 
 1915, pp, 317-320. Describes takinj- of sa-ples of silver ore. 
 
 886. Wood, HdE. Separating metallics from Pacific Coast sands. Eng. and Min. 
 Jour., vol. 109, 1920, p. 398. In sampling several million tons of 
 beach sands, 14 ft. holes were drilled, and 200 samples, et.ch 200 Ibs. 
 were taken. 
 
 387. .Yocd, H.R. Notes on samplin^. Colo. Sch. Mines Quart., vol. 13, 1891-92, 
 pp. 364-568; En:-, and Mi n. Jour., vol. 54, 1892, p. 156; Jour. Soc. Chem. 
 Ind., vol. 12, 1693, p. 547. Discusses briefly vein and mine sampling, 
 duiup sampling, and slat, sampling. 
 
 888. Wood, J.E. A method of collecting gold from pannings. Trans. Inst. Min. 
 and Met., vol. 20, Oct., 1910-11, p. <4. Describes wrapping samples of 
 bold in lead foil for convenience and protection. 
 
 o39. Wocdbrid e, D.E. L?. Cananea mining camp. Eng. and Mm. Jour., vol. 82, 
 1906, pp. 623-62. Discusses method of sampling ore with an autoiDatic 
 sampler of the revolving barrel type. 
 
 Mesabi iron ore ranga. Ei%. and Min. Jour., vol. 79, 
 
 1905, pp. 466-^69. Describes methods of sampling ore in place. 
 
 891. Woodbrid t e, T.R. Ore sampling conditions in the West. U.S. Bur. Mines 
 
 Tech. Paper 86, 1916, 96 pp. Discusses conditions affecting ore sampling 
 and the methods used. 
 
 391- (a) _ . Ore samplin b . Section 29, of Peele s Mining Engineers 
 Handbook;. 1918. Notes on mill and l?.t>. samplers, with flow-sheets ana 
 costs. 
 
 832. __ _ t Sampling by machine. Enj. . and Min. Jour,, vol. 86, 1908, 
 p. 917; vol. 87, 1909, pp. 269-272. Discussion of article by J.A. Churcn. 
 Vol. 86, 1908, p. 113. 
 
 893. Woodman, J.E. Coal sampling. Can. Min. Jour., vol. 28, 1907, p. 112. 
 
 Discusses principles. 
 
 894. Worcester, S.A. Co lour n-Aj^.x mill, Victor, Colorado. Em,., and Min. Jour., 
 
 vol. 93, 1912, p. 753. Describes Scunpling methods. 
 
 89-i. (a) Wraight, E.A, British- America Nickel Corporation. Min. Jour., vol. 
 
 134, 1921, p. 526. Nickel ore nt the main shaft is sampled by a traveling 
 car which takes a sample from the ends of 7 sorting belts. 
 
 895. Wraith, Williara, Sampling anode-copper with special reference to silver- 
 
 content, Trans. Am, Inst. Min. Eng. , vol. 41, 1910, pp. 318-323; dis 
 cussion, vol. 42, 1911, pp. 905-908. Give smelter, refinery, and ladle- 
 shot methods of sampling and comments on them. 
 
 -70- 
 
896, Wright, C.A. lining and milling lead-zinc ores in the Mis sour i-IIancas- 
 Oklahoma ditrict. Bureau of Mines Bull. 154, 1918. Importance of 
 sampling emaasized, p. 123. 
 
 : 697. _ . anin b and milling lead-zinc ores in Wisconsin. Bureau of 
 Mines Tech. ^aper 95, 1915. Methods of prospecting and sampling ere 
 foi ven. 
 
 v 693. Wright, L.T, Element of chance in sampling of ores. Min. Mag., vol. 3, 
 1910, pp. 33-358. Discusses application of mathematics to determine 
 errors of cance in sampling, especially Vezin s principles of safe 
 weights. 
 
 : 399. Wright, . S.B. Smelting and refining of Cobalt silver ore. Eng. and Min. 
 Jour., vol. 107, 1919, p. 263. The silver - cobalt - arsenic - nickel 
 ores and cc.centrates are first crushed to 20 mest, and cut by Snyder 
 machines. 
 
 900. Wybergh, Wilted. Estimating and sampling ore reserves as practiced on the 
 
 V/itwatersrad. Trans. Inst, Min. and Met., vol. 4, 1896-97, pp. 261-27<. 
 Gives detals and data on sampling both undeveloped mines and ore already 
 blocked out 
 
 901. Yancey, H.F. nd Fraser, Thomas. Sulphur in coal beds. Bull. Uni . of 
 
 Illinois, 121. Abstr. in Jour. Ind. and Eng. Chem., vol. 13, 1921, p. 
 35. Sempl:^ coal seams 
 
 . 902. Young, G.J. ontrol of ore-dressing operations. En b . and Min. Jour., vol. 
 107, 1919, . 907. systematic sampling at each stage is hi t hly important 
 
 903. _ ___. .laments of mining . 1916, 628 pp. Discusses mine sampling, 
 pp. 584-60. 
 
 _ . .nyder ore sampler. Eng. and Min. Jour., vol. 70, 1900, p. 
 
 905. _ _ _. flection of a method for ore treatment. Met. and 6hem. Eng., 
 
 vol. 15, 116, pp. 297-299. Gives principles of sampling, 
 
 906. Young, L.E. Bibliography of mining. Min. Ind., vol. 20, 1911, Gives 
 
 bibliograpy for 1911 on sampling and valuation, pp. 775-776. 
 
 -71- 
 
PA^ETTS. 
 
 Allen, Charles. Automatic ore and. puJp sampler. U.S. patent 754,912, March Lv, 
 190 1. A spout cscilXates through tne ore stream collecting a sample. 
 
 Andrus, Gr.S. Samp?.ing apparatus. U.S. patent 260,994, July 10, 1283. 
 
 Backus, G.S. Sampler, U.S. pa ent 3,238 058. August 21, 1917. Cuts out J of 
 tho renter 3 ai by tne cone and chute method. For pulverized ores. 
 
 Badger, E.S. Ccnbines measuring and sampling machine. U.S. patent 725,915, 
 
 April 21, 1903. A spout, that is attached to a measuring device that tilts 
 mechanically from on--? side to the ct,:cr alternately dumping its contents 
 front e-ibhor end, passes through the ore stream falling, into the device ana 
 samples it at each movement. 
 
 Bardill, J,0. Autoi^atic sampling machine. U.S. patent 1,063,494, June 3, 1913, 
 A circulating sweep -arm with a s?jr:pl bcr att-fhod passes through the stream 
 of falling ore at regulated intervals and catches a sample. 
 
 Beeken, L.L. Coal sampling machine. U.S. patent 1,186,646, June 13, 1916. 
 Automatically samples a large body of coal and reduces the samples. 
 
 Behr, H.C. and Schmidt, C.F.S.O. Apparatus fcr sub-dividin_, stream of pulp and 
 other liquids. U.S. patent 1,020,251, March 12, 1912. Apparatus includes 
 a swinging spout that moves in a circle and passes periodically through a 
 falling stream of liquid catting out a sample each revolution. 
 
 Boener, E.G. Device for sampling, mixing and blending granular substances. U,S 
 patent 1,160,036, November 9, 1915. The material falls over a cone into 
 ducts and intervening spaces. The material led off by the ducts and that 
 falling between them is led off in both cases by two different spouts, di 
 viding both of the previous divisions. 
 
 Bradford, Allen, Automatic sampling apparatus. U.S. patent 384,420, June 12, 
 18SS. A vibrating sampling-cup passes through launder containing pulp or 
 tailings and cut out sample, 
 
 Bretherton, S.E. Ore sampler. U.S. patent 704,853, July 15, 1902. For ccarse 
 ore. Buckets suspended en a rotating arm pass through the stream, catch 
 samples and en pas-sin^ beyond the stream are tripped and their contents 
 dumped into a sample box. 
 
 Bridgrnan, H.L. Ore sc^mpler. U.S. patent 433,7?.4, August 5. 1890. The mass 
 of ore is automatically split in passing through chutes rotated by hand. 
 
 . Sampling machine. U.S. patent 457,145, August 4, 3891. A 
 
 large mass of ore is passed through chutes with spiral blades, 1/8 being. 
 taken out in each chute and passed on to the next, until the sample is 
 reduced to two samples each l/128th of the mass. 
 
 Brunton, D.W. Device for sampling. U.S. patent 454,120, June 16, 1891. A 
 
 riffle shovel divided in three parts, the outer two without backs, so that 
 when the shovelful of ore is tilted backwards one-third the contents remains 
 in the shovel and the other two-thirds fall out. 
 
 -72- 
 
runt on, D.W. Ore sampling ^chine. U.S, patent 304,359, August 15, 
 
 The stream is cut by a vibratim spout attached to a bar on a rotating wheel 
 
 _. Or sampling machine, U.S. patent 553,503, January 23, 1896, 
 
 A spout swines across the ore stream and deflects samples. 
 
 uskett, E.W. Multiple riffle sample. U.S. patent 6<1,928, January 22, 1907. 
 The sample is cut out and reduced by p?.ssa,e of the ore through three sets 
 of riffles in an inclined shaft. 
 
 yrnes, 0. Sampling machine, U.o, patent 608,634, August 9, 1699. The pulp 
 
 is dropped over a rotating wheel with spiral ribs* One rib with a projecting 
 spout on the end carries off a sample and drops it into a receiving spout that 
 leads to the exterior of the machine.;- 
 
 alkins, A.C. Apparatus for separating material. U.S. patent 850,293, April 16, 
 1907. The material passes, through lateral, openings of reflated size in the 
 side of the hopper into rotating buckets. One half the material passes on^ 
 and the other half is retained in the buckets, one eighth of the material in 
 each bucket , 
 
 . Atfcahhment for ore sampling machine. U.S. patent 663, a44, October 
 
 1, 1901. Device to control agitation of hopper independently or rotation of 
 the sampling buckets. 
 
 Ore sampling machine, U.S. patent 682,528, September 10, 1901. 
 
 Mechanically quarters pulverized ore by hand power. 
 
 Clarkscn, Thomas. Sampler for grain, minerals, etc, U.S. patent 518,915, April 
 24, 1894. One- tenth of the mass is obtained as a sample by passing through 
 an annular rotating hopper with chutes. 
 
 Clift, A.S. Plant or apparatus for aamplinr ore. U.S. patent 1,062,636, May 
 27, 1913. A series of b rinding and deflecting devices for automatically 
 sampling ore. 
 
 Cheesman, D.J., Moore, J.A. and Snyder, C,A. Ore sampler. U.S. patent 621,771, 
 March 21, 1899. The stroam is mechanically mixed by rotation and a rotating 
 bucket cuts the stream taking two samples. 
 
 logswell, S.E. Automatic sampler. U.S. patent 1,241,196, September 25, 1917. 
 A series of empty tubes pass under a hole in the bottom of an inclined shaft 
 down which ore is falling. As the tuba directly, under the hold becomes 
 filled, its weight causes it to pass on admitting the next tube beneath the 
 hole. Designed for crushed or granulated rr^terial. 
 
 Colby, F.J. Sampler. U.S. patent 1,133,933, March 30, 1915. A series of rif 
 fles through which the mass of ore falls, part bein L deflected in each set 
 and sent on to the next set for further reducing. 
 
 Collom, J. Machine for sampling ores and othor metals* U.S. patent 146,167, 
 January 6, 1874. 
 
 -73- 
 
Condi, J.C. Liquid sampling device. U.S. patent 569,733, October 20, 
 
 Constant, C.L. Ore sampler. U.S. patent 868,471, May 26, 1908. The ore falls 
 vertically over a drum rotating horizontally, & sample falls into the drum 
 through two openings in its sides and passes out through opening at tho ends 
 of the drum. 
 
 Damm, J.M. Ore mixer and sampler. U.S. patent 655,478, August 7, 1900. Ore is 
 rotated in the hopper and falls into spouts, one of which leads to the sample 
 box. 
 
 Dodd, W.G. Ore or pulp sampler. U.S. patent 693,690, February 18, 1902. A 
 rocking trough cuts through a falling ore stream and samples it at each 
 movement. The samples flow out through a pipe and are outside the launder. 
 
 Dodds, R.D. Sample-taking device. U.S. patent 1,235,883, August 7, 1917. Obtai 
 sample of formations through which the drill bit passes , Designed particu 
 larly for drilling oil wells. 
 
 Drawe, J.J. Oil and liquid sampler. U.S* patent 892,944, July 7, 1916. 
 Dyer, G.S. Liquid samplsr, U.S. patent 732,059, June 30, 1903, 
 
 Eyre, T.E. Ore sampling machine. U.S. patent 299,920, June 3, 1884. A grooved, 
 conical divider in the hopper cults out a sample which is removed by a cylinde 
 with a screw thread and vertical shaft, journaled to rotate within the hopper 
 
 Fairchild, O.H, Ore sampler. U.S. patent 1,001,129, August 22, 1911. Takes a 
 sample transversely across a sliding stream of ore, splits it in two parts, 
 and distributes the reserve sample in itwo or more compartments, 
 
 Fanderx, H.D. Ore-sampling machine. U.S. patent 649,288, May 8, 1900. Divides 
 25 to 100-ton lots and takes a small sample by mechanically splitting the ore 
 stream, 
 
 Fensterrcaker, Abraham. sample-taking machine. U.S. patent 887., 615, May 12, 1903 
 A turn-table with sample box comes under a deflecting spout at given inter 
 vals. The spout deflects sample from the ore stream and automatically re 
 leases it as the box passes under Designed for granular or pulverized mater 
 ial. 
 
 Flood, J.N. Automatic electric sampler. U.S. patent 1,010,032, November 28, 
 1911. A moving deflector, actuated by electricity automatically takes a 
 cross section of the entire stream of pulverized ore at given intervals. 
 
 Foster, C.R. and Coolidge, Winthrop, Ore sampler. U.S. patent 694,734, March 4, 
 1902, Wet or dry ore is divided by gravity in passing through a hopper con 
 taining dividers. 
 
 Geissler, Carl. Automatic sampler for grain, etc. U.S. patent 632,713, Septem 
 ber 12, 1899, A series of rotating drums cuts out part of a falling stream 
 of granular material* 
 
 -74- 
 
Jullberg, A.G, Ore sampler. U.S. patent 782,235, February 1-.., 1905. A 
 
 to adjustment of p .rt the cutter takes from 5 to 6070 of ti^e whole stream of 
 ore, 
 
 laggstrom, C.J. Liquid sampler. U.S. patent 1,296,79-*, March 11, 1S19, 
 
 lallett, S.I. Ore sampler. U.S. patent 566,169, August 18, 1896. Automatical 
 ly divides the mass into four, retaining one quarter as sample, which is 
 put through the machine again until the sample is the desired quantity. 
 
 Robert. Automatic sampling device. U.S. patent 1,151,682, Axigust 31, 
 1915. A series of buckets are arranged on concentric wheels rotating verti 
 cally. As the grain passes over the wheels the first set of buckets catches 
 samples, a part of which falls into the second set and a part of that sample 
 filling .into the third set until 1/96 th of the original sample is obtained. 
 For granular material. 
 
 aultain, H.E.T. Sampling apparatus. U.S. patent 680,526, August 13, 1901. 
 Sets of troughs inclined and spaced to catch part of a falling mass. Each 
 set reduces the size of the sample. 
 
 awley, R.C, Ore sampling device. U.S. patent 463.509, November 17, 1891. 
 Hoppers arranged one above tho other and containing oscillating dividing 
 win & s thc.t halve tne entering material. 
 
 _____ Ore sampling device. U.S. patent 475,557, May 2fr, 189*;, The 
 
 stream is divided in half in the first hopper and each half passes tnrough 
 a, series of - hoppers containing oscillating wings where they are reduced, 
 resulting in two identical samples. 
 
 opper, G.L. Ore sampler. U.S. patent 523,664, July 31, 1694. A swinging spout 
 passes through the stream of liquid, catches a sample and discharges it to 
 one side of the launder. 
 
 ngoldsby, F.S. Automatic sampling mechanism, U.S. patent 1,024,13ft, April 23, 
 1912. A pocket to be attached to a scoop th^.t automatically takes ?. sample 
 of each scoopful of ore, 
 
 ones, L.E. Sampler operating device. U.S. patent 1,079,010, November 18, 1913. 
 An electrically actuated cutter takes samples at intervals of a stream of 
 fluid or powdered ore. 
 
 ones, William. sampling apparatus. U.S. patent 359,156, M^irch 8, 1867. A 
 
 stream of ore passing down an inclined- chute passes over riffles, the re 
 
 tained ore passes on and over a second set of riffles ana so on until less 
 than ljs% of the origin?.! mass is obtained, 
 
 awton, C,L. Tailing sampler. U.S. patent 1,188,794, January 27, 1916. Samples 
 are lifted from tho stream by a fluid-pressure jet pas sing -back ^uid forth 
 across the main launder, 
 
 cCone, A.J. Ore sanpling apparatus. U.S. patent 9*9,234, February lo, 1910. 
 The ore falls on a traveling carrier on which are -a series of- pans spaced so 
 that the intervals are in any desired proportion to the pans < The ore falling, 
 through the spaces is tne sample. 
 
 -75- 
 
McDermott, Walter. Ore saL .plin fc ui?.ciiine. U.S. oaten t ^54,203, December 1*, ]6> 
 Designed to be attached to .-. crushing aill. P. spout projects into tno stre : 
 of dry or wet ora arid deflects a sample into = pail. 
 
 McGregor, A,G. Sampling apparatus. U.S. patent 1,155,670, October 5, 1915. A 
 carrier on chains passes through a falling stream at regular intervals, 
 catches a sample, and automatically dumps it into a sample pile. 
 
 Moore, C.C., jr. Sampling machine. U.S, patent 573,610, December 22, 1896. 
 The ore falls through a series of conical hoppers containing deflectors. 
 The first hopper deflects -$ the mass, which passes to the secona hopper 
 where -J of the sample is deflected, &. through as many hoppers as is desirec 
 
 Morehouse, W.L. Ore feeder and sampler. U.S. patent 1,079, 164, November 13, 
 
 1913. A tube revolving within tne hopper nixes tne ore with an external 
 screw, takes samples through openinings in its sides, and passes them to its 
 ends by means of .-ji internal screw where th^y are discharged, 
 
 N%el, C-irl. Weighing or measuring apparatus. U.S. patent 1,092,741. April 7, 
 
 1914. Includes a device to take samples of liquids from weighing or measur 
 ing apparatus opened by valves. 
 
 Newhouse, R.C. Sampling device. U.S. patent 1,170,842, February 3, 1916. Part 
 of the material p-.ssing through a screw conveyor is automatically released 
 as sample. 
 
 Overstrom, G.A. Sampler, U.S. patent 674,096, May 14, 1901. The entire strean 
 is mechanically deflected at regular periods. 
 
 Palmer, C.E. Apparatus for sampling ores. U.S. patent 398,275, February 19, 
 1899. The ore falls over a conical surface and one- third is caught in a 
 pocket as a sample. 
 
 Peterson, George, Apparatus for takin b samples from grain and tne like. U.S. 
 
 patent 1,063,725, June 3, 1913. Cuts many small samples froa either an un 
 interrupted or an intermittent stream of pulverized ore. 
 
 Pott, F.B. Ore sampler. U.S. patent 1,215,988, February 13, 1917. A rotating 
 drum containing buckets that open into the base of a cone, catches samples, 
 and discharges them through tne cone. 
 
 Potter, G.D* Automatic ore sampl .r. U.S. patent 679,574. July 30, 1901. 
 Periodically cuts part of the mass. 
 
 3re sampling machinery. U.S. patent 523,731, July 31, 189*. De 
 signed to sample 5 car-load lots at a time. The weight of the sample is 
 proportional to the weight of the car-load, about 50 Ibs. Each car is 
 sampled separately. 
 
 Rant, W,L. Ore sampling machine. U.S. patent 751,340, February 2, 1904. Ore 
 passes down chute screw conveyor, and over E. rotatin^ drum that catches sam 
 ples through openings in its sides. 
 
 -76- 
 
lamsay, JErskine. U.S. patent 1,249,4:*!, December 11, 1^17. A sample pocket 
 
 timed to move transversely across chute ana cut a stream of falling ere. De 
 signed chiefly for coal. A screen below the pocket dump divides tne slate, 
 slack, and lumps. 
 
 lorrison, William. Liquid sampler. U.S. patent 166,717, January 4, 1916. 
 
 tossberg, F.W. Pulp and ore sampler, U.S. patent 580,303, April 3, 1897. A 
 cup cuts the stream mechanically at ; regular intervals. 
 
 Scobey, Jesse, Ore sampler, U.S. patent 684,314, October 8, 1901. Periodically 
 diverts a part of the stream into a trough. Designed for tailings but 
 can be used for 
 
 Sheridan, L*M. Ore-sampling device. U.S. patent 1,031,365, July 2, 1912. Cutter 
 intermittently deflects part of the stream 
 
 Snyder, F 4 T. gamplfcr, U.S. patent 773,819, November 1, 1904. Gravity conveyors 
 from which samples are deflected. 
 
 Stephens, Will and Munger, J.P. Automatic tailing sampler, U.S. patent 665,620, 
 January 8, 1901. Journaled drum dips sample from the current. 
 
 Stratton, J.H. Sampling mill. U.S. patent 599,649, February 22, 1898. A con 
 centric series of wheels carrying buckets spaced equidistantly. T* 16 to P cl " 
 the buckets is proportioned to the intervening spaces as the amount of tne 
 sample is to the mass. 
 
 fagliabue, G. Liquid sampling device. U.S. patent 540,121, May 26, 1895. 
 
 Dopham, T.A. Ore sampler. U.S. patent 563,101, June 30, 1896, A rotating wheel 
 with a chute cuts? sample from stream of ore. The number of samples taken is 
 regulated by the speed of the wheel. 
 
 ruesdell, A.E, Recording sampler. tJ 4 S. patent 1,228,078, May 29, 1917. Pockets 
 rotating on wheels patch samples from the ore stream. The pockets .re timed 
 to cut the stream in, say half hour intervals, ana are labelled with their 
 scheduled time. 
 
 Jrquhart, C.H. Ore sampler. U.S. patent 1,008,638, February 24, 1914. Period 
 ically diverts the entire stream; operates by gravity, 
 
 n Mater, J.A, Ore sampling apparatus. U.S. patent 946,744, January 18, 1910. 
 Sampling buckets pass automatically on chains through the stream of falling 
 ore . 
 
 Wallace, J.M. Toller for grain or ore. U.S. patent 240,344, /y?ril 19, 1891. 
 
 Sampling spouts around the periphery of a conical, rotating hopper carry off 
 
 samples. 
 
 lifare, W.B. Sampling machine. U.S. patent 1,274,962, August 6, 1918. A 
 
 fitting wheel rotates against an exposure of the ore stream ana carries off 
 a sample in an open pocket. For powdered or granular material. 
 
 -77- 
 
Wendell, C.A. Automatic sampling device. U.S. patent 1,223,544, April 2<t, 1917 
 Selects samples autom-.tics.lly from a stream of ore and reduces then, in 
 geometrical prograssion. 
 
 Wsymouth, T.R, Thief for testing oils. U.S. patent 844,433, February 19, 1907. 
 
 Williams, C.J. Apparatus for sampling streams of weV bre and the like. U.S. 
 
 patent 1,235,090, July 31, 1917. A scoop is n^echanically tipped at regular 
 intervals to deflect tha stream at a fall in a stepped launder. 
 
 -78- 
 
U. S. Bureau of Mines Publications Containing Notes On Sampling? 
 
 In the preceding text, these same references are listed alphabetically by author fei 
 jinss, but are grouped here for convenient reference. 
 
 Bulletin 12. 1913. Apparatus and methods for sampling and analysis of furnace 
 ases, by J.C,V. Frazer and 3.J. Hoffman. 
 
 Bulletin 23, 1913. Analysis of coals in the United States, with descriptions of 
 ine and field samples collected between 1904: aad 1910, by N.W. Lord ana others. 
 
 Bulletin 28, 1911. United States fuel- test ing plant at St. Louis, Mo., 190o to 
 906, by N, W. Lord. 
 
 Bulletin 42. 1913. Sampling and examination of mine gases and natural gas, by 
 , A. Burrell and F. M. Seibert. 
 
 Bulletin 51. 1913. Analysis of black powder and dynamite, by W. 0. Snelling ana 
 
 . G. Storm, 
 
 Bulletin 56, 1913. First s.ries of coal-dust explosion tests in the Experimental 
 ine, by G. S, Rice and others. Methods of sampling after-damp and other gases, pp. 
 8, 54, 107. 
 
 Bulletin 63. 1913. Sampling coal deliveries, ana types of government specif ica- 
 ions for purchase of coal, by G. S. Pope, 
 
 Bulletins 85 and 125 (1914 and 1917) Analysis of mine and car samples of coal 
 ollected in 1911-13 and 1913-16, by A. C. Fieldner and others. Methods of collect- 
 ng and analyzing samples. 
 
 Bulletin 93, 1916. Feldspars of New England and North Appalachian States by A. 
 i, Watts. Testing of samples described. 
 
 Bulletin 963 1916. Analysis of permissible axplosives, by C. G. Storm. Method. 
 f sampling -dynamite is described. 
 
 Bulletin 97. 1915. Sampling and analyzing flue gases, by Henry Kreisinger and 
 ,K. Ovitz. 
 
 Bulletin 98. 1915. Report of the Selby Smelter Corgis si on, by J. A. Holmes, 
 1, C. Franklin, and R. A. Goula. Sampling the atmosphere near the shelter. 
 
 Bulletin 103, 1917. Mining ana concentration of carnotite ores, by K. C. Kithil 
 ind J. A. Davis, Descriptions and illustrations of samplers. 
 
 Bulletin 112, 1920. Mining and preparing domestic graphite for crucible use, by 
 }. D. Dub and F. G. Moses. On pages 36-36 is described and illustrated the jnethoa 
 ind apparatus used in sampling sacked graphite. 
 
 Bulletin 116, 1918. Methods of sampling delivered coal, 5y G. S. Pope. 
 
 Bulletin 12^, 1916. Principles and practice of sampling metallurgical materials 
 vith special reference to sampling copper bullion, by Edward Keller. 
 
 Bulletin 127, 1918. Gold dredging in the United States, by Charles Janin. 
 Sampling and calculating placer ground. 
 
 -79- 
 
5-l-l^fiHLA^-L -iii. Dining and idllin^ leai-zinc ore in tna Mp.ssouri-Fansas- 
 Oklahoma district, by C. A. Wright. Lrqpcrt^nce cf sf^iplinj emphasizes. 
 
 Bulletin 191, 1920. Quality cf ^.scline marketed, in hhe United States, by 
 H.H. Hill and E.W. Dean. Methods of collecting samples. 
 
 Bulletin 195, 1921. Underground conditions in oil fields, by A.V. . Ambrose. 
 Sampling drill-cores, 3aa.pl e containers, e aac.i nation of samples. 
 
 Bulletin 201. 1^21. Prospe ctint and test ire oil, gas, end water-bearin^ stra 
 By. R.E. Collom. Sampling and identifying drill cuttings from oil-wells. 
 
 Bulletin 210. 1921 . Oil-shale: history Juid technology. By M.J, Gavin. 
 Sampling and testing shale discussed, inclauint a hint to taks samples from bcslo 
 exposed surfaces. 
 
 Technical P-per 1. Sauplin fe of coal in a ,uine , by J .A. Holr.es. 
 
 Technical P^per 3 f 1911. Purch se of fuel-oil for the Government, with di 
 rections for s^plink oil and natural gas, by J.C, A llen. 
 
 Technical Pf.jer l^^JL^lg^ Apparatus for ^as-analysis laboratories at co?J 
 mines, by G.A. Burrell and F.M. Seibert. Apparatus for collecting, s angles is in 
 eluded. 
 
 Notes on s^jcipUng and analysis of coo.l, by A.C. 
 
 Fildner. Discusses factors affecting accuracy of sampling, and methods used by 
 the Bureau of Mines. 
 
 Technical Paper 83. 1S15. Buyin^ and sellin ores and metallurgical products 
 by C.H. Fulton, Brief disc\ission of sampling methods, 
 
 Technical Paper 95, 1915. Minin & and udllin^ lead-2inc ores in Wisconsin, by 
 C.A. Wright. Prospecting by drilling discussed. 
 
 Technical Paper 109, 1915. Composition of natural ^as used in 25 cities, by 
 G.A. Burrell and G.G. Oberfell, Samples were collected in 300 cc, bottles. 
 
 Technical Paper 133. 1919. Directions for rampling coal for shipment or deli\ 
 
 , by G,S, Pope. The complete operation of sampling is graphically set forth 
 in a series of 34 sketches. 
 
 Technical Paper 143, 1917., Determination of moisture in coke, by A.C. 
 Fieldner and W.A. Selvig. Method of handlint samples during tests. 
 
 Technical Paper 11 6, 1918. Methods for routine work in the explosives physi 
 cal lab. cf Bureau of Mines, Pittsburgh, Pa,, by S.P. Howell and J.E. Tiffany. 
 Regulations re e Hrdin t submitting samples of explosives. 
 
 Technical Paper 261, 1921. Ventilation in ...etal uj.nes; a preliminary report, 
 by Daniel Harrington. How samples of mine air are taken. 
 
 Serial 2120, April, 3920. Oil thieves, by A.R. Elliott. Description of in 
 struments used in sanplin^ oil in tanks cr reservoirs, A piece of pipe or bottle 
 is lowered to the desired depth, and a sample taken; or a set of 5; to 1 inch 
 valves are fitted at certain intervals on tne outside of ?. tank, allowin e samples 
 t o b e drawn off . 
 
 -60- 
 
Serials No. 2202 and 23S, 121. Properties of typical crude oils .froa 
 astern producing fields of the Umted States, by E.W. Dean. Brief inert ion of 
 ethod of sampling . 
 
 Notes on the oil-shale industry, by M.J. Gavin, H, T I, K 
 nd V/.E. Perdew. Considerable care is needed in s^mplin^ snale clrioc c i . .^ . 
 
 Serial No. 3352. June 1921. Gases produced by carbon tetrac:Ucr ..c.e C ld :: O&TI- 
 to i.lre eztinsui shei s in mines, by A.C, li ioldnsr and 8,H. Katz. PJ.an c.r ir.ins 
 hows positions for taking gas samples. 
 
 report. F. Form 6 - 138. A blank for report on a coal seam and samplas 
 aken therefrom. One page. 
 
 Sampling report. Form - - - . A blank for report on shale deposits. One 
 
 -dl- 
 
Acid, water, ate. --- 
 
 350; 3b9; -*39; 559; 615; 723; c^l. 
 
 Air, dust, and 
 
 11; 22; 23; 63; 75; 87; 106; 107; 10 v, Kb ; 116; 15b; 1*8; 216; 227; 2*3; 
 299; 30*; 316; 3*5; 3-*6; 350; 355; 359; 376; 377; <1*; <75; 4o9; 702 a; 
 715; 722; 72*; 769; 790; 604; 676. 
 
 bauxite --- 
 
 486; 761; Bureau of Mines (see list of U.S. Bure-u of Mines publications, 
 which precedes this subject index) 
 
 Calcium carbide --- 
 651 a. 
 
 Carnotite ---- 
 
 435. 
 
 CeiLent , clay, concrete, etc. --- 
 
 15; 347; 353; 697; 769; 767. 
 
 Chroinite - 
 
 19^ a; 372. 
 
 Goal 
 
 17; 19; 42; 43; 61; 72; 89; 110; 111; 112; 121; 122; 135.; l4o; 14*; 155; 179; 
 
 206; 209; 296; 2*7 ; 296; 301; 302; 315; 332; 334; 350; 375; 3d7; 393; *16; 
 
 440; 459; 477; 460; 527; 529; 530; 570: 655; 663; 66*; 676; 679; 6cO; 633; 
 
 6o4; 736; 740; 7*1; 747; 766 a; 776; 786; 602; 503; 811; 693; 901. 
 
 Coke 
 
 13; 43; 120; 123; 135; 199; 300; 337; *6? ; 521; 762. 
 
 Copper --- 
 
 2; 3; 4; 8; 11; 28; 36; 36; 40; 50; 59; 65; 99; 103; 147; 166; 176 ; 167; 
 
 189; 197; 212; 213; 214; 236; 260; 270; 276; 265; 269; 321; 354; 365; 456; 
 
 *6o; 469; 470; *71; 472; 473; 474; 499; 5o2; 5o3 ; 515; 516; 516; 522; 52*; 
 
 537; 545; 5*9; 552; 569; 572; 609; 624; 629; 66^; 673; 675; 676; 685; 692; 
 695 a; 702; 711; 713; 733; 746; 757; 760; 770; 773; 777; 796; 620; o25; 833; 
 
 647; 646; 669; 880; 86*. 
 
 Custom samplers --- f 
 
 33; 35 a; 40; 81; 97; 114; 12*; 212; 2*6; 251; S&*\ 436; 4*3; 4*0; 501; 
 526; 5*3; 5**; 5S6 ; 612; 633; 671; 688; 704; 705; 708; 739; 767 &; 816; 3^9; 
 835 a; 865; 666; 875; 891, 
 
 Diaircndif ercus ground --- 
 547; 698. 
 
 Drilling --- 
 
 1; 6; 13; 68; 73; 74; 76; 173; 163; 192; 210; 230; 260; 3^1; 327; 328; 335; 
 353; 360; 362; 37< ; 360; 3*5; 397; 403; *16; *21; 437 a; *50; *53; *65; -92; 
 528 a; 597; 620; 629; 632; 663; 672 a; 674; 668 b; 690; 702; 718; 725; 735; 
 745; 785; 791; 805 a; B17; 318; 841; 852; 867; 886. 
 
 DuiLps (ore and tailings) --- 
 
 69; 370; 383; 412; 426; 433; 525; 5*0; 5*1; 626; 6S4; 845; 846; 886; 887. 
 
 -82- 
 
6; 65; 05; 73; 74; 126; 128; 129; 157; 159; 131; 158; 176; 176; 133; 192; 
 SIC; 230: 283; 290; 295;. 321; 354; 357; 362; ^74; 378; 330; 595; 672; 713; 
 837; ?49; 852; 879 4 
 
 59*; 780; 797 a. 
 
 351. 
 
 Id 
 
 5; 31; 3*; 44; 45; *; 61; 57; 6*; 77; 1<55; 126; 138; 143; 161; 172; 176; 
 
 177; 133; 184; 136; 168; 191; 192; 201; 202; 205; 205; 213 a; 266; 236; 313; 
 
 314; 323; 331; 335; 341; 360; 366; 378; 385; 395; 3*7; *C3 ; 416; 423; 426; 
 
 &27; 437; 443; 4*8; 4*9; *50; 451; 453; ^5* ; *55; *62 a; 464; 465; 466; *70; 
 
 432; 506; 508; 511; 523; 553; 579; 601; 602; 619; 623; 638; 640; .60! ; 660; 
 
 669; 701; 709; 721; 723; 731; 73.3; 737; ?65; 757; 752; 809; 813; 81*; 815; 
 
 82*; o36 a; 836 b; 864; 876; 880; 882; 883, 894; 900. 
 
 aphite --- 
 196 a. 
 
 on and steel --- 
 
 37; 39; 54; 56; 88; 115; 118; 119 a; 151; 162; 164; 165; 230; 305; 306; 338; 
 373; 411; 428; 431; 495; 534; 614; 627; 625; 652; 6*3; 7*6; 759; 808; blO; 
 812 a: 867; 880 a> 390. 
 
 iboratory methods --- 
 
 26 a; 32; 33; 40 a; 46; 54; 65; 82; 91; 92; 93; 95; 96; 127; 134; 137; 145; 
 
 152; 172; 177; 191; 202; 213; 216; 222; 228; 229; 229 a; 232; 237; 245; 250; 
 
 25*; 269; 271; 279; 298; 303; 323; 324; 354; 359; 365; 363; 371; 372; 385; 
 
 386; 387; 411; 414; *34; 435; 444; 445; 4*7; *52; 450; *76; 47y; *81; *o7; 
 
 491; 505; 509; 520; 528; 533; 536; 639; 560; 567; 571; 573; 574; ; 575; 576; 
 
 578; 580; 533; 604; 606; 611; 615; 630; 637; 644; 645; 646; 643; 65b; 606; 
 
 681; 696; 70*; 705; 714; 742; 743; 7*4; 750; 763; 77*; 806; 815; 522; 835- 
 
 834; 859; 868; 873; 391; 691 a; 398, 
 
 ead --- 
 
 9; 29; 34; 142; 180; 161; 194; 200; 217; 265; 370; 392; *20; 430; *90; 500; 
 586; 521; 691; 706; 707; 785; 792; 850; 663; 671; 861; 631 a; 896. 
 
 eather --- 
 768. 
 
 ietals (copper, ^cla, iron, lead, silver, steel, zinc) --- 
 
 64; 67; 1*2; 186; 137; 194; 196; 200; 217; 262; 273; 27b; 305; 366; 373; 383; 
 387; 429; 430; 431; **64; 468; 469: *70; 471; *72; 473; 493; 501; 502; 503; 
 505; 506; 515; 516; 518; 522; 52*; 53*; 564; 691; 717; 726; 771; 772; 778; 
 797; 895. 
 
 !ill products 
 
 6; 41; 69; 90 a; 166; 173; ^06; 221; 231; 370; 410; **!; 461; 462; 512; 525; 
 540; 541; 556; 563; 56*; 602; 605; 613; 634; 650; 653; 66-*; 670; 751; 752; 
 757; 764; 820; 836; 340; 648; 869. 
 
 -83- 
 
Mill sau-pling,, ^nerOL (see also patents) 
 
 ?; 7 a; 34; 25; 25; 27; 30; 35; 41; 44; 52; 53; 56; 60; 70; 71; 76; 79; 80 
 62; 83; 93; 94; 95; *7 > ^6; 101; 117; 131; 132; 139; 13* a; 140; 141; 1*5; 
 150; 153; 171; ISO a; 1*3; 207; 211; 221; 2<;3 ; 22*; 225; 23-*; 235; 236; 23; 
 240; <;*9; 255; 259; 262; 263; 267; 275; 276; 277; 281; 29* ; 307; 303; 309; 
 317; 319; 340; 363; 36i?; 361; 382; 386; 390: 406; *13; 415; *32; 442; 510; 
 51-*; 533 a; 542; 5*8; 549 a; 553; 557; 558; 579; 585; 608; 61* a; 615; 630; 
 539; 661; 70*; 705; 716; 719; 724; 753; 75*; 758; 765; 766; 793; 842; 856; 
 633; 691; 831 a; 902; c 5. 
 
 Mine sarr.pl ing, ^ensr-^1 
 
 21; 25; 33; 46; 47; 48; 55; 65; 77; 91; 102; 10*; 105; 128 a; 129; 130; 13c 
 143; 156; 157 a; 157 b; 163; 167 a; 169; 170; 162; 190; 20*; 226; 229; 2*1; 
 2*2; 2**; 256; 257; 258; 259; 261; 26*; 266; 266; 27-*; 232; 283; 267; *y3 
 310; 314; 320; 326; 329; 330; 351; 356; 356 a; 3*2 a; 3*9; 356; 36*; 367; 
 379; 364; 365; 391; 394; 398; 399; *00; *01; <*C2; *05; *0s; *2c; *26 a; < 
 454; 483; *99 a; 505 a- 507; 513; 513 *; 532; 046 a; 546; 554; 561; 562; 56 
 567 a; 577; 561; 567; 590; 591; 5i?2; 593; 596; 599; 600; 607; 611; 616; 6^5 
 626; 633; 642; 643; 647; 6*9; 653 a; 654; 657; 65s; 662; 667: a; 672 a; 677; 
 682; 688 a; 700; 703; 705 a; 710 a; 712; 713; 727; 730; 733 a; 7**; 754; 
 766; 767; 773 a; 775; 78*; 788; 79* a; 7*5; 798; 799; 805; 612; 819; 822 a; 
 627; 344; 653; 855; 656; 857; 858; 660; 361; .262; 862 a; 86<* a; 868; 870; 
 373; 874; 877; 864; 867; 903; 906. 
 
 Molybdenite 
 
 494, 
 
 Nickel 
 
 894 a,v 
 
 Nitrates - 
 
 7 b; 327; 336; 720; 601. 
 
 Oil 
 
 1, 10; 12; 13; 14; 16; 20; 123; 175; 284; 407; 723; 822. 
 
 Oil-shale 
 
 163; 174; 332 a; 333; 455 a; 686. 
 
 Placers 
 
 126; 161; 176; 183; 192; 210; 328; 335; 360; 395; 397; 403; 416; 423; 426; 
 437; 437 a; 448; 4-*9 ; 450; 453; 465; *34; 436; 492; 523 a; 636; 672 a; 674 ; 
 636 b; 690; 721; 745; 785 a; 791; 617; 816; 626; 841; 852 a. 
 
 Pyrite 
 
 195; 246. 
 
 Quicksilver 
 
 78; 160; 196; 205; 342; 735; 794; eOO. 
 
 s.qples 
 
 21; 49; 252; 253; 268; 4*6; 496; 519; 531; 550; 532; 596; 667; 756; 798; 
 607; 839; 854. 
 
 -3*- 
 
Silver - 
 
 34; 67; 100; 119; 124; 125; 137; 145: 152; 154; 205; 242; 247; 2-i* ; 313; i 
 35o; 368; 420; 42^; 451; 504; 551; 555; 539; 651; 673 a; 657; 72o; 779; 635; 
 399. 
 
 2; 11; 29; 32; 58; 50; 67; 79; 60; 32; 33; c4; d5; 66; 92; 93; 94; 95; 6; 
 97; 98; 117; 139 a; 153; 195; 196; 216; 233; 251; 322; 343; 34*; 353; *25 ; 
 456; 457; 463; 497; 546; 667; 6^9; 82e; 631; 891; 
 
 Soil 
 
 318 a. 
 
 Tin --- 
 
 136; 144; 203; 219; 220; 291; 292 a; 565; 610; 617; 635; 663; 731; 823, 
 
 Tungsten --- 
 
 404. U.S. Bureau of Mines publications --- (see list wnich precedes this 
 subject index) . 
 
 Zinc --- 
 
 62; 69; 70; 113; 114; 165; 272; 662; 333; 493; 564 ; 695; 7o5; o35; d96; 897. 
 
 -85- 
 
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