UNIVERSITY OF CALIFORNIA PUBLICATIONS. COLLEGE OF AGRICULTURE, AGRICULTURAL EXPERIMENT STATION, BERKELEY, CALIFORNIA. ANALYSES OF PARIS GREEN AND LEAD ARSENATE. By GEORGE K. COLBY PROPOSED INSECTICIDE LAW. By C. W. WOODWORTH. BULLETIN No. 182 (Berkeley, Cal., December, 1906.) SACRAMENTO: W. W. SHANNON, '. '. '. '. SUPERINTENDENT STATE PRINTING. 1906. BENJAMIN IDE WHEELER, Ph.D., LL-D., President of the University. EXPERIMENT STATION STAFF. E.J. WICKSON, M.A., Acting Director and Horticulturist. E. W. HTLGARD, Ph.D., LL.D., Chemist. W. A. SETCHELL, Ph.D., Botanist. ELWOOD MEAD, M.S., C.E-, Irrigation Engineer. C. W. WOODWORTH, M.S., Entomologist. [ on i eave .) R. H. LOUGHRIDGE, Ph.D., Agricultural Geologist and Soil Physicist. (Soils and Alkali.) (Absent M. E. JAFFA, M.S., Nutrition Expert, in charge of the Laboratory of Agricultural Chemistry and the Poultry Station. G. W. SHAW, M.A., Ph.D., Agricultural Technologist in' charge of Cereal Stations. GEORGE E. COLBY, M.S., Chemist. (Fruits, Waters, Insecticides.') RALPH E. SMITH, B.S., Plant Pathologist, and Superintendent of Southern California Pathological Laboratory and Experiment Stations. A. R. WARD, B.S.A., D.V.M., Veterinarian and Bacteriologist. E. W. MAJOR, B.Agr., Animal Industry. F. T. BIOLETTI, M.S., Viticulturist. (Grapes, IVine, and Zymology.) H. M. HALL, M.S., Assistant Botanist. H. J. QUAYLE, A.B., Assistant Entomologist. JOHN S. BURD, B.S., Chemist, in charge of Fertilizer Control. C. M. HARING, D.V. M., Assistant Veterinarian and Bacteriologist. , Assistant Plant Pathologist. E. H. SMITH, M.S., Assistant Plant Pathologist. R. E. MANSELL, Assistant in Horticulture in charge of Central Station Grounds. G. R. STEWART, Student Assistant in Station Laboratory. , Assistant in Soil Laboratory . RALPH BENTON, B. S., Assistant in Entomology. LUDWIG ROSENSTEIN, Laboratory Assistant in Fertilizer Control. ALFRED TOURNIER, Assistant in Viticulture. HANS HOLM, Student Assistant in Zymology. A. J. GAUMITZ, Assistant in Cereal Laboratory. J. C. BRADLEY, A.B., Assistant in Entomology. D. L. BUNNELL, Clerk to the Director. JOHN TUOHY, Patron, ) r Tulare Substation, Tulare. J. T. BEARSS, Foreman, ) J. W. MILLS, Horticultural Assistant in Southern California, Riverside. J. W. ROPER, Patron, University Forestry Station, Chico. E- C. MILLER, In charge, ) ROY JONES, Patron, ) r University Forestry Station, Santa Monica. N. D. INGHAM, Foreman, ) VINCENT J. HUNTLEY, Foreman of California Poultry Experiment Station, Petaluma. The Station publications (Reports and Bulletins), so long as avail- able, will be sent to any citizen of the State on application. ANALYSES OF PARIS GREEN AND LEAD ARSENATE. By GEORGE E. COLBY. The present bulletin is a report upon the operation of the follow- ing' law : AN ACT To Prevent Fraud in the Sale of Parts Green Used as an Insecticide. The People of the State of California, represented in Senate and Assembly, do enact as folloivs: Section 1. It shall be the duty of each and every manufacturer of paris green (commercial aceto-arsenite of copper) to be used as an insecticide within this State, and of every dealer in original packages of said paris green manufactured outside of this State, before the said paris green is offered or exposed for sale, or sold within this State as an insecticide, to submit to the Director of the California Agricultural Experiment Station at Berkeley, samples of said paris green, and a written or printed statement setting forth : first, the brands of said paris green to be sold, the number of pounds contained in each package in which it is put on the market for sale, the name or names of the manufacturers and the place of manufacturing the same ; second, the statement shall set forth the amount of combined arsenic which the said paris green contains, and the statement so furnished shall be considered as constituting a guarantee to the purchaser that every package of such paris green contains not less than the amount of combined arsenic set forth in the statement. Sec 2. Every purchaser of said paris green in original packages, which is manu- factured outside of this State, who intends to sell or expose the same for sale, and every manufacturer of said paris green within this State, shall, after filing the statement above provided for, with the Director of the California Agricultural Experiment Station at Berkeley, receive from the said Director a certificate stating that he has complied with the foregoing statement, which certificate shall be furnished without charge therefor ; said certificate when furnished shall authorize the party when receiving the same to deal in this State in the said paris green. Any person who fails to comply with the terms of section one of this Act shall not be entitled to such certificate and shall not be entitled to deal in said paris green within this State. Nothing in this section shall be construed as applying to retail dealers selling said paris green which has already been labeled and guaranteed. Sec 3. Paris green, when sold, offered or exposed for sale, as an insecticide, in this State, shall contain at least fifty per centum of arsenious oxide and shall not contain more than four per centum of the same in the uncombined state. Sec 4. The Director of the California State Agricultural Station at Berkeley shall examine or cause to be examined different brands of paris green sold, offered or exposed for sale within the State, and cause samples of the same to be analyzed, and shall report results of analyses forthwith to the Secretary of the State Board of Horticulture and to the party or parties submitting said samples, and such report shall be final as regards its quality. 178 UNIVERSITY OF CALIFORNIA— EXPERIMENT STATION. Sec. 5. Any person or persons, firm, association, company or corporation violat- ing any of Hie provisions of this Act, and any person who shall sell any package of paris green or any part thereof which has not been labeled as la-rein provided, shall be guilty of a misdemeanor, and shall be fined not less than fifty dollars nor more than two hundred dollars, together with the costs of the suit in an action caused to be brought by the State Board of Horticulture through its secretary in the name of the people of the State of California. Sec. (>. The Attorney-General of the State of California is charged with the prosecution of all such suits. Sec. 7. This Act shall take effect immediately. [February 28, 1901, became a law by constitutional limitation.] In accordance with the requirements of the law above quoted the Station has examined, during the years 1904 and 1905 and 1905 and 1906, a total of sixteen dealer's lots of paris green, nine for 1904-1905 and seven for 1905-1906; comprising a total of 43,070 pounds paris green tested for the two years in question. The dealers to whom certificates were issued during the two years are as follows: Bean Spray Pump Co., San Jose, Cal.; AV. P. Fuller & Co., San Francisco, Cal.; Western Drug Co., Los Angeles, Cal.; Alack & Co., San Francisco, Cal. ; Langley & Michaels Co., San Francisco, .Cal.; Yates & Co., San Francisco, Cal.; Kirk, Geary & Co., Sacramento, Cal. The names of the manufacturers of these goods are given in the table of results of examination of samples. One certificate was denied, viz., that relating to 2,000 pounds of "Lion' brand of paris green, manufactured by James A. Blanchard & Co., New York, offered to W. P. Fuller & Co., San Francisco, Cal. Bulletin No. 151, "Arsenical Insecticides,' contains information regarding the composition of paris green and other arsenicals tested here up to the year 1904. The following table shows the quantity, in tons, of paris green tested since the law of 1901 went into effect; also, the quantities found passable and the amounts rejected: First Seeond Third Fourth Year. Year. Year. Year. Number of tons examined .- 19 29.5 14.2 7.6 Number of tons refused 5 1.5 None. 1.0 Number of tons passable (for wbich certiticates wereissued) ...14 28.0 14.2 (5.6 It appears from the above statement that up to the end of the third year of the operation of the California law governing the sale of paris green great improvement was had in the quality of greens offered for sale through dealers here, and shows how care in the manufacture of this article in New York prevailed as against the loose methods followed in earlier times, where we found only about 20 per cent of their goods passable. But in the fourtli year of the ANALYSES OF PARIS GREEN AND LEAD ARSENATE. 179 life of the law nearly one seventh of the whole of the paris green sub- mitted here in accordance with the law had to be refused. Thus, the necessity for the law of 1901 becomes emphatically proved, and it should be upheld. The dealers have, in the last year, not ordered from New York as much paris green as formerly ; this may be explained by the fact that certain large districts of the State have, upon the recommendation of this Station,* been ordering and using large ship- ments of lead arsenate as a preferable article to destroy the codling- moth. Composition of Paris Green. — Pure paris green is a compound of verdigris (18 parts) and arsenite of copper (82 parts), so combined as to form aceto-arsenite of copper, which may be best represented by the following components: copper oxid, 31.29 per cent; arsenious oxid (As 2 G..), 58.65 per cent; and acetic acid, 10.06 per cent, since so far a chemical formula for it has not been accepted. Pure paris green does not contain arsenious oxid as such; i. e.. in a free condition it is combined with copper, and a microscopic examination of paris green should not show that the particles of green have any projecting crystals of free white arsenic (As 2 3 ) or even remnants of octahedrals scattered through the material. Sometimes a little sulfate of sodium (glauber salt) is left in paris green, but this is simply due to poor work in manufacture— it was not washed out. I aspect ion of Invoices of Paris Green. — The lots or shipments tested for dealers here have been carefully examined as to weight by compe- tent representatives of the Station, and in no case were there any dis- crepancies found. The buyer, however, has to satisfy himself that he gets full weight, especially of small packages, which we have many times found to be a little short in weight ; but, like anything put up in containers, the shortage usually comes to nothing more than the weight of the paper or wood. The chemical tests made at this Station comprise those relating to the total poison (As 2 ;? in all forms) and the free, or uncombined (water-soluble), arsenious oxid. * California Station Bulletin No. 155, Directions for Spraying for Codling-Moth. 180 UNIVERSITY OP CALIFORNIA — EXPERIMENT STATION. o CD to z o z HH p 55 to < to ►« to a H O 5 o Q to > 1— I u o to 0= w to cc C5 en OS -H s X w to X H fa O CO H & C/5 to 03 4-3 CO \ CD* CD £ j iO iO iO iO OOO i IO LO CO 1 1 , 1 > 1 1 CO +H co ! I 1 1 Q S? £ 1 1 K £? o 1 1 ► o S-( i ' 1 1 rj- i i W CJO CD s .s rP ! , 1 CO > 1 i CO I Oh "5 CO 03 ' ' ! o||; S ! PLE AS o proje pie.) CD O ' '< 1 f-l Sh 03 (H eg IB o ° ! w CD C CO CO q O C g T3 1 1 > CD i i < ; 03 j ; ; T3 c? ft ft G ! G ' ' ! ' o ' ! G ! O , CO ■" == G ■N OF arsei any CD 43 J— > 03 a o i-i CO — <-" ' O o o O ' ^ Q t_ U < H3 ^_| rj-J i-Q 2 S 2 >s?- l> CD > & i 03 O « ^S a ^ ^ G O _ o CD CD q CD CD CD CD i G O W o ^ O ft>cOi ft O&nft ; O JZ5 2 60 Cm c :J 1 ( 1 i i'ii S £ [3 ° CD g CD^I ' i i > i i CD CD i CD i G CD X 1 co O OB — ' CO CO bo tE 03 &J3 bJD > &C ' fcO &£ "!ct — ' ^ Sh ^-i 2 s- t, cr; ^h S- !- 2 Eh 2$* 8-1 Sh "-" 03 03 « i — i CO ' 03 03 s+_i 03 ^ tut \ C3 03 «4H 0[iH ; ft ft co ; ^H o £ _H a Sh" 1 6 ' 6 ' 6 \ 6 •i—i CD IO ! o lo !o G <-| £ :^ : =3 !o^ log o S3 mh fee*-; be Sh &C ^ C5C £H ° to fc, CJ ^ CD in CD ^h G T3 tn 3 345 P 45 C45 345 C G S3 42 CD' G 43 G^Q G 03 42 05 > r- > o3 ^1 03 ft e P* i-i pq h4 m J PQ »H G O .03 O o^ ? ft 2 ft T5 <1 ft cn CD ^ o ! o 1 ! ;o ! : : \ 6 J ; +J ; 50 ; ' . • bJD &fl i -a 05 C3 s- C (A : :mw O ! ^i , PhO'OOQ cor 5^ °^ ^oW CD 03 ' — ' « H ^ft1Tr fe 3 1 ,' O :£ : : Q ; I l— ' , , CO "S ; ; s « rrt 03 , i 03 _ ^ CO i i x: M Cg , its o 03^ ^- C - ) 03 dS W ^ CD^ 2 s ftQ : CD CD i SS'ss ! 5° CO i G CD i o o ' CD as as co Oh W 0) - 1 G 03 (h o G 45^^ ^ r* tl CO W ft 03 ."d r-H +H Oj M b£k> rj CO +-. O r^ l-H a^CK 03 g . fH o ft G G . CO CO CO Number o —1 CN CO •<* CD ^H -h ,— I ^H t— oo as o 1— 1 CN CM CO CN CN I— t^ 1^ t^ t^ i^ t^ r~ t- t^ l^ l^ ANALYSES OP PARIS GREEN AND LEAD ARSENATE. 181 CD O 05 O CO w z B o Q 55 fa CC < fa = H O OS Q Q w > w o w b S5 fa w cc o (/I B < 0- fa o o I— I H < 55 >— < S < X w w B H fa O CO H -J B CO w B S3 orQ 3 «- CD O &~ a o c C B cu H co •< 1-1 CJ CO ;_ co £ SO £ *■ fa to -^ csS S3 cc^ O co g X GO CO GO CO .OX £>£> •& 05 CO vO NH O t- H00 CO i—l CN CO (M — I CD C— i o c 3£ "CO ^J oo O TlJ Oi . CO CO oo vo Oi OS OO CN rf< CO CO CO CO o CO CN Cj CD CO . CDCO S- vO VO Oh CD O 00 vo t— CD vO vO CD o CD O CN CD VO GO o o o o I> vo CN VO vO £ o W be co .CD w 1-1 - CO o c H C X >H O GO O r=*T3 Orrt O _ CD CD c — c3rD! co g o3 a cs3 O « c 'Lo O >. CU "co O CD^ M " GO fl o CD GO 4G fl o3 O a ^ ° CD o « So c o c3 CD S3 go PI ° S3 O ^ CD £ FJ CD O GO r; O rG 03 a O O CD CD &C50 ^i s-, c3 c3 t £ £J CD CD c3 CD CD CD o CD 3 CD O O S bC becuo i- tn f-( S3 p S3 S3 S3 S3 c3 cS s3 > > > c3 CJ oJ faifa,'fe bD . O o o CD a o3 CB J4 O CD 6 o o3 "o e3 j >» CO - oj Jaj S3 "S^h 03 03 -i-c CD o : O o bcO S3 S-, CO Q « CD o3 03 rj CO .C. a; i«h © ^ , C3 ^CQ^ Sh CD W CD^^ Sh CD 3 . s o CD C O Q w r^ o V w >H o3 ^i CD o u ^ ec ~ ►~. TO X O fai Ph' §3 r ^^ Number vO 00O CN CN CN t— t- t- CO -^ CD CO CO CO CO vO CO 1S2 UNIVERSITY OF CALIFORNIA —EXPERIMENT STATION. Total Arsenious Oxid. — All of the samples examined (representing, as above noted for 1904-1906, 20.8 tons green) showed upwards of 50 per cent of total arsenious oxid — the range being from 53.5 to 57.8 of tin 1 material— not as great as formerly, but it is to be noted that one factory turned out a major part of the goods sent to California. However, it appears from this standpoint that we have not been receiving any better goods than those last reported, and certainly not up to those offered to New York and New Jersey horticulturists. Water-soluble Arsenious Oxid (common white arsenic). — The method of determining this ingredient is given on page 19 of Bulletin No. 151 of this Station, and in some respects differs from that followed at the New York and New Jersey stations ; but, as far as practical results go, serves what was intended, viz., to show with accuracy what might be expected as regards effect on foliage. It seems fair yet to compare again the water-soluble arsenic com- pounds found in paris greens offered for sale in the samples examined before the law went into effect with those tested afterwards. Before the law was made we found only one fifth of the greens collected throughout the State to be satisfactory, passable for use in this State ; since then they showed a wide range in this impurity, or from as little as 4.14 per cent to as much as 29.40 per cent. After the law became operative this range in difference immediately lessened, so that only 10 or 11 per cent was determined to be the maximum quantity, and latterly this has fallen to 7.7 per cent, and nearly 95 per cent of the goods tested at this Station do not reach the maximum amount per- missible, viz., 4 per cent of water-soluble arsenious oxid. SUMMARY RELATING TO PARIS GREEN. The quality of paris green offered by dealers and examined at this Station during 1904-1906 is slightly better than that received in California for insecticide work in former years. But at no time since the law went into effect has any gross adulteration been detected. Every dealer in paris green has received (as far as has been ascer- tained by examination) from the manufacturers during the last two years the required amount of poison (As 2 :! ) in these goods offered as insecticides. The water-soluble arsenious compounds in the goods tested in the third year did not amount, in any invoice of paris green, to enough to cause the refusal of the article, and of 20.8 tons tested during 1904-1906 only one ton was refused on account of containing over 4 per cent of water-soluble arsenious oxid. That the law is not stringent and does not work any hardship upon any one concerned is proven by the facts above stated, also by reason ANALYSES OF PARIS GREEN AND LEAD ARSENATE. is:; of the fact that no complaints have been lodged against it since it went into operation. ANALYSES OF COMMERCIAL LEAD ARSENATES. A few samples of these excellent spraying materials have been tested, and all have been found to contain very little, if any, water- soluble arsenions compounds, i. e. leaf-bnrning compounds. They are true to label, none having any arsenites in them. The following table gives the results of the chemical tests: Chemical Examination of Commercial Lead Arsenates 2 f > O 3» r= > C 2 c cd Sender, Brand, etc. Manufacturer. CD P- O X pi a pi QTCjCT? 3 3 O O CO ^ - P CD rt- n cd P <-+ cd — ft- CD ^ 3 W o& ■ 2^ CD B. cd 50 r+3" >-> 1— 1 PS O ft ►* go O - ID CD- 1904-1905. Pr. Ct. Pr. Ct. Pr. Ct. Pr. Ct. Pr. Ct. 711 W. T.Clark Swift's Arsenate Lead . . 35.60 14.00 9.15 41.25 Trace. None Chlorids, small. 715 Mack&Co Adler Color and Chemical W'ks. 37.63 10.60 4.57 47.20 Trace. None Chlorids, 1905-1906. small. 794 Mack & Co. A. B. Ansbacher & Co 39.60 *12.30 None A. B. Ansbacher's Chlorids, 781 small. Eagle Brand... A. B. Ansbacher & Co. 26.70 9.40 12.70 51.20 Trace None Chlorids, small. 79,6 A. Block. Not given . 49.80 13.40 9.20 27.60 0.14 None Chlorids, small. 727 A. Block • Not given 47.00 13.00 1130 28.70 0.16 None Chlorids, small. 730 Braun & Co. Not given 27.20 8.30 9.80 54.70 None . None Chlorids, and Ni- trates, small. * Manufacturer claimed 13 00 per cent. These Eastern-made lead arsenates come into this market mostly in the form of pastes, which are easy to make up into sprays. They remain long in suspension in the spray-tank — very much longer than paris green. However, the transportation of so much water as they ordinarily hold makes them expensive. It is said that certain districts here have undertaken on a large scale to provide themselves with this valuable material, but none of their output has as yet been sent to or obtained by the Station for chemical examination. 184 UNIVERSITY OF CALIFORNIA. — EXPERIMENT STATION. PROPOSED INSECTICIDE CONTROL LAW. By C. W. WOODWORTH. The preceding article by Professor Colby has shown very conclusively the necessity of some legal regulation of the sale of insecticides in this State. This is in the interest both of the honest dealer and of the grower. The present law is intended to regulate the sale of but a single in- secticide, paris green, and this substance is becoming less and less important, being now so largely replaced by lead v arsenate. The writer wishes, therefore, to present the following proposed bill for consideration, and solicits comments, suggestions, and expressions of opinion of all parties interested in this measure. The bill is based on that now in operation for the control of commercial fertilizers, and is indeed the same bill with only the verbal changes necessary to make it applicable to insecticides : AN ACT To Regulate the Sale of Insecticides, or Materials Used for Insecticidal Purposes, and to Provide Penalties for the Infraction thereof, and Means for the Enforcement of the Act. The People of the State of California, represented in Senate and Assembly, do enact as folloics: Section 1. Every lot, parcel, or package of commercial insecticides, or materials to be used for insecticidal purposes, sold, offered, or exposed for sale, within this State, shall be accompanied by a plainly printed label, stating the name, brand, and trade mark, if any there be, under which the insecticide is sold, the name and address of the manufacturer, importer, or dealer, the place of manufacture, and a chemical analysis, stating the percentages claimed to be therein, of the substance or substances alleged to have insecticidal properties, specifying the form or forms in which each is present, and the materials from which all constituents of the insecticides are derived. All analyses of substances for which methods have been agreed upon by the American Association of Official Agricultural Chemists, are to be made by such official methods. In the case of those insecticides the selling- price of which is less than one cent per pound, said label need only give a correct general statement of the nature and composition of the insecticide it accompanies. Sec. 2. The manufacturer, importer, agent of, or dealer in any commercial insecticide, or materials used for insecticidal purposes, the selling price of which to the consumer is one cent (1 cent) per pound, shall, before the same is offered for sale, obtain a certificate of registration from the secretary of the Board of Regents of the University of California, countersigned by the said university, authorizing the sale of insecticides in this State, and shall securely fix to each lot, parcel, or package of insecticide the word "registered," with the number of registry. The manufacturer, importer, agent, or dealer obtaining such registry shall pay PROPOSED INSECTICIDE CONTROL LAW. 185 to the said secretary the sum of fifty (50) dollars, to be applied as provided in section eight of this Act ; such registration shall expire on the thirtieth day of June of the fiscal year for which it was given ; provided, the provisions of this section shall not apply to any agent whose principals shall have obtained a certificate of registration as herein provided. Every such manufacturer, importer, agent, or dealer, who makes or sells, or offers for sale, any such substances, under a name or brand, shall file, on or before the first day of July, in each year, a statement, under oath, with the Director of the Agricultural Experiment Station of the University of California, stating such name or brand, and stating the component parts, in accordance with the provisions of section one of this Act, of the substances to be sold, or offered for sale, or manufactured under each such name or brand. Sec. 3. The said director shall annually, on or before the first day of September, take samples in accordance with the provisions of section five hereof, of the substance made, sold, or offered for sale, under every such name or brand, and cause analyses to be made thereof in accordance with the provisions of section one hereof, and said analyses may include such other determinations as said director may at any time deem advisable. Dealers in or manufacturers of insecticides must give free access to the Director of the Agricultural Experiment Station, or his duly authorized deputy, to all the materials which they may place on the market for sale in California. Whenever the analysis certified by the said director shall show a deficiency of not more than five per cent of the substance alleged to have insecticidal properties, the statement of the manufacturer or importer, as required in section one of this Act, shall not be deemed to be false in the meaning of this Act ; provided, that this Act shall not apply to sales of insecticidal materials made to a registered manufacturer of insecticides or to sales for export outside of this State; provided further, that the said Director of the Agricultural Experiment Station of the University of California shall, upon the receipt of a sample of insecticide, accom- panied with a nominal fee of two (2) dollars, furnish to the user of said com- mercial insecticide such examination or analysis of the sample as will substantially establish the conformity or non-conformity of the said insecticide to the guarantee under which it was sold. Sec. 4. The Director of the Agricultural Experiment Station of the University of California, in person or by deputy, is hereby authorized to take a sample, not exceeding two pounds in weight, for analysis by the said director or his deputies, from any lot, parcel, or package of insecticide or material, or mixture of materials, used for insecticidal purposes, which may be in the possession of any manufacturer, importer, agent, or dealer ; but said sample shall be drawn in the presence of said party or parties in interest, or their representatives. In lots of five tons or less. samples shall be drawn from at least ten packages, or, if less than ten packages are present, all shall be sampled ; in lots of over five tons, not less than twenty packages shall be sampled. The samples so drawn shall be thoroughly mixed, and from it two equal samples shall be drawn and placed in glass vessels, carefully sealed, and a label placed on each, stating the name or brand of the insecticide or material sampled, the name of the party from whose stock the sample was drawn, and the time and place of drawing ; and said label shall also be signed by the said director or his deputy making such inspection, and by the party or parties in interest, or their representatives present at the drawing and sealing of said samples. One of said duplicate samples shall be retained by the party whose stock was sampled, and the other by the Director of the Agricultural Experiment Station of the University of California. Sec. 5. The Director of the Agricultural Experiment Station of the University of California shall publish, in bulletin form, from time to time, at least annually, the results of the analyses hereinbefore provided, with such additional information as circumstances may advise. Sec. 6. There is hereby appropriated for the use of the Agricultural Experiment Station of the University of California at Berkeley, Alameda County, as set forth in this Act, out of any moneys in the treasury not otherwise appropriated, the sum of eighteen hundred (1800) dollars for the equipment of a laboratory, with the 186 UNIVERSITY OP CALIFORNIA — EXPERIMENT STATION. chemicals and apparatus, and other incidentals necessary to the successful prosecu- tion of the work. Sec. 7. In order to further provide for the necessary expenses of this work, there shall be paid by the manufacturer, importer, agent, or dealer, ten cents for every hundred pounds of insecticides sold, the selling price of which to the consumer is one cent (1 c. ) or more per pound. A statement, sworn to by the manufacturer, importer, agent, or dealer, of such sales shall be rendered quarterly to the secretary of the Board of Regents of the University of California, accompanied by the corresponding amount of the special license fee, as above specified ; provided, that whenever the manufacturer or importer shall have paid the special license fee herein required, for any person acting as agent or seller for such manufacturer or dealer, such agent or seller shall not be required to pay the special license fee named in this section. On receipt of said special license fee and statement, the said secretary shall issue to the manufacturer, importer, agent, or dealer, a certificate of compliance with this section. Sec. 8. All moneys, whether received from registry and analytical fees or special license fees, shall be paid to the secretary of the Board of Regents of the University of California, for the use of said board in carrying out the provisions of this Act. Sec. 9. Any party selling, offering, or exposing for sale, any commercial insecti- cide, without the statement required by section one of this Act, or with a label stating that said insecticide contains a larger percentage of any one or more of the constituents claimed as having insecticidal properties than is actually contained therein, except as provided for in section three, or respecting the sale of which all the provisions of this Act have not been fully complied with, shall be deemed guilty of a misdemeanor, and upon conviction thereof, before any court of competent jurisdiction, shall be fined in a sum not less than fifty (50) dollars and costs of action for the first offense, and one hundred ( 100 ) dollars and costs of the action for each subsequent offense. Said fines to be paid into the school fund of the county in which conviction is had. Sec. 10. In any action, civil or criminal, in any court in this Stace, a certificate, under the hand of said director and the seal of said university, stating the results of any analysis purporting to have been made under provisions of this Act, shall be prima facie evidence of the fact that the sample or samples mentioned in said analysis or certificate were properly analyzed as in this Act provided ; that such samples were taken as in this Act provided; that the substances analyzed contained the component parts stated in such certificate and analysis ; and that the samples were taken from the parcels or packages or lots mentioned or described in said certificate. Sec. 11. This Act shall take effect and be in force from and after July first, nineteen hundred and seven. STATION PUBLICATIONS. '18' STATION PUBLICATIONS AVAILABLE FOR DISTRIBUTION. REPORTS. 1800. Report of the Viticultural Work during the seasons 1887-93, with data regarding the Vintages of 1894-95. 1897. Resistant Vines, their Selection, Adaptation, and Grafting. Appendix to Viticultural Report for 1896. 1898. Partial Report of Work of Agricultural Experiment Station for the '.cars 1895-90 and 189(5-07. 1900. Report of the Agricultural Experiment Station for the year 1897-98. 1902. Report of the Agricultural Experiment Station for 1898-1901. 1903. Report of the Agricultural Experiment Station for 1901-1903. 1901. Twenty-second Report of the Agricultural Experiment Station for 1903-1904. TECHNICAL BULLETINS— ENTOMOLOGICAL SERIES. Vol. 1, No. 1. Wing Veins of Insects. No. 2. Catalogue of the Ephydridae. BULLETINS. Reprint. Endurance of Drought in Soils of the Arid Region. No. 128. Nature, Value and Utilization of Alkali Lands, and Tolerance of Alkali. (Revised and Reprint, 1905.) 131. The Phylloxera of the Vine. 133. Tolerance of Alkali by Various Cultures. 138. Citrus Fruit Culture. 139, Orange and Lemon Rot. 110. Lands of the Colorado Delta in Salton Basin, and Supplement. 111. Deciduous Fruits at Paso Robles. 142. Grasshoppers in California. 113. California Peach-Tree Borer. 144. The Peach- Worm. 145. The Red Spider of Citrus Trees. 146. New Methods of Grafting and Budding Vines. 147. Culture Work of the Substations. 148. Resistant Vines and their Hybrids. 149. California Sugar Industry. 150. The Value of Oak Leaves for Forage. 151. Arsenical Insecticides. 152. Fumigation Dosage. 153. Spraying with Distillates. 154. Sulfur Sprays for Red Spider. 155. Directions for Sp raving for the Codling-Moth. 150. Fowl Cholera. 158. California Olive Oil : its Manufacture. 159. Contribution to the Study of Fermentation. 100. The Hop Aphis. 101. Tuberculosis in Fowls. (Reprint.) 102. Commercial Fertilizers. (Dec. 1. 1904.) 103. Pear Scab. 164. Poultry Feeding and Proprietary Foods. (Reprint.) 165. Asparagus and Asparagus Rust in California. 166. Spraying for Scale Insects. 1(57. Manufacture of Dry Wines in Hot Countries. 108. Observations on Some Vine Diseases in Sonoma County. 109. Tolerance of the Sugar Beet for Alkali. 170. Studies in Grasshopper Control. 171. Commercial Fertilizers. (June 30, 1905.) 172. Further Experience in Asparagus Rust Control. 173. Commercial Fertilizers. (December, 1905.) 174. A New Wine-Cooling Machine. 175. Tomato Diseases in California. 170. Sugar Beets in the San Joaquin Valley. 177. A New Method of Making Dry Red Wine. 178. Mosquito Control. 179. Commercial Fertilizers. (June, 1900.) 180. Resistant Vinevards. 181. The Selection of Seed-Wheat. 188 UNIVERSITY OF CALIFORNIA— EXPERIMENT STATION. No. 1. Texas Fever. 2. Blackleg. 3. Hog Cholera. 4. Anthrax. 5. Contagious Abortion in Cows. 7. Remedies for Insects. 9. Asparagus Rust. 10. Reading Course in Economic Entomology. (Revision.) 11. Fumigation Practice. 12. Silk Culture. 13. The Culture of the Sugar Beet. CIRCULARS. No. 15. 16. 17. 18. 19. 20. 21. 22. Recent Problems in Agriculture. What a University Farm is For. Notes on Seed- Wheat. Why Agriculture Should be Taught in the Public Schools. Caterpillars on Oaks. Disinfection of Stables. Reading Course in Irrigation. The Advancement of Agri- cultural Education. Defecation of Must for White Winp. 23. Pure Yeast in Wineries. Copies may be had on application to Director of Experiment Station, Berkeley, Cal.