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Les cartas, planches, tableaux, etc.. peuvent itre filmto A des taux de riduction diffArents. Lorsque ki document est trop grand pour Atra reproduit en un aeul clichA. 11 est fiimA A portir • ds I'sngis supArieur gsuche. de gauche A droite, et de haut an bas. en prenant le nombre d'Images nAcsssaira. Las disgrammas suivsnts illustrent la mAthoda. J 2X 1 2 3 1 2 3 4 5 6 I & s J iS ( : 31 feHR>^-v^5>(R)^r4^',-^-. •'ftKrr^'^-:-^^' PACIFIC BAILWAY. (^^tTOfir Silf^/ey op GKNERAL INSTRUCTIONS TO ENGINEERS IN CHAHffB OF ?mm. TRiNSlT-MEN iNB lEVgLERS. i-i 1 'ii , f 1 i>.sgxfs^:(^-s^i%^^=s^: '*'. M^ 4 (|j«j*H<*iW»*>f^-^^ ■►■»*■«■■' ■''-"^.''■'^'T**" ^5)^" umm I f'oy^jp'oj «^x3 8VI()ITr)IIflT8t^l JAHai^^O in mmu m myrimm Mimi 10 mm m mimm > ^($a^55>;2:3xF^<^ — £!J^F^-(^(f^^^^^: CANADIAN PACIFIC RAILWAY. ExpLoi^^TonY SUf^/Ey of J87l. GENERAL INSTRUCTIONS TO ENGINEERS IN CfliRGE OF PARTiES, TRiNSlT-MEN iND LEVELERa :'i\ CAN^DIAN PACIFIC E\AILWAY- EXPLORa^TOftY SURVKY OP 1871. Oppice op the Bnginbbr in Chibp, Ottawa, May 24rh, 1871. • h . '^h ^^"'^•ernan placed at the head of a party virill be re- quired o take general charge of it, and the Oh ef BngTneer w n look to h„T» for the propor and faithful execution of llUnlt^nc- tions. whether general or special, .vhich may be gi^en f om time Ihe'^rty" '''" '' ^"' '''' maintenance ofVoper disdpHne "n •- «K^' ^^T' "'*'™^er ot the party will be under the Kneineer ip charge, and must obey his orders. The Commissariat Officer m charge of the transport of provisions, will consult with and be ?„t''f.^ ^^ '^' Engineer it charge, and in the a bsence of the for mor, the packmen will obey the orders of the latter ft,n ^' . ^'^®° "!® Engineer in charge finds it necessary to leave the party or ,n the event of illness, he shall nominate the peSo! to act in his p^^ace for tl.e time being; in the event of hi« Sjr lu dy so, ine Transit-man shall take charge. ^ • ^1 1 ■-' 4. Arrangements will be made for forwarding supplies to a general depot aj or near the point of commencement of each Division of the Survey, and when practicable, to certain interme- diate points . this will be done by the Commissariat Department, but the Engineer in charge must, before starting for his field of operation, obtain a'coinplete list of all supplies intended to be forwarded, and if any article appears to him to be wanting: or superfluous, or if nny change in the proposed arrangement re- specting the mode of supply appears advisable, he shall at once confer with the Commissariat Officer, and before leaving for the survey he shall arrive at a perfect understanding with respect thereto. 5. The Commissariat Officer is instructed to procure and forward the verv best of each article required, and to use everv means in his power to maintain a sufficient supply of provisions and stores. The Engineer in charge mu«t, however, look suffici- ently far ahead with reference to the movements of his party, to be able to advise thnt officer as to the nature and quantity of ptores required, and the place where they must be delivered, and there must be a clear and distinct understanding between them that they will he delivered at the time and place required. The Engineer will also see that proper care if* taken of the supplies, and that there is no waste. (^. As the season for field operations is limited, the Engin- eer in charge is expected to see that every member of his party performs his duty with dilligence, and that every effort is made to carry out the whole of the work in a satisfactory manner. 7. Each exploring party shall bo designated by a letter of the alphabet, and all articles of equipment, supplie?, books, papers and records, belonging to the partv shall be marked with and known by that letter. 8. In conducting the survey the Engineer of a party is ex- pected to be at Us head every day, exploring in front, "and to the right and lett of the lino, in order to see what obstructions may be in the way of the same, and if seriou:^ decidin'>' as to the best manner of avoiding them. '^ ipplies to : of each interme- artment. 1 field of led to be intingr or ment re- at once ? for the respect cure and se every •ovisions k snffici- jarty. to intitv of red. and en til em d. The mppliep, J Bnj2fin- lis party is made ler. eiter of i, papers ith and ty is ex- and to ructions iS to the 3 9. It is not expected that the first survey through wooded districts, will, as a rule, be the best position lor the milway ; it will, however, be the aim of the Knginec-r in charge to have the ' Transit Line" not very fardistiuit from a practicable railway line. The ♦' Transit Line " on whicii the measurements are taken will form a base on which to project an approximate section, and the Engineer iu charge, by noting tlie features of the country, on both sides of the line, will be able to make an approximate section as the survey proceeds. 10. In many cases it will be desirable for the Engineer in charge, while making his daily eApiorations. to lake barometric eleyatioiis oi the ground, noting by estimation the approximate position of the points of observation i.i relation to the " Transit line " These elevations should be reduced afterwards to the da- tum of the survey, and marked upon ihe plan in their proper po- sition. This, as well as the generul features of tlie country, should be marked upon the plan every day, while tlie whole is fresh iu iho memory. The barometric elevation will answer for rough cross sections, and be usefulia determining on the plan the position of the approximate location line, and also iu compiling an ap- proximate section of the same. 11. The engineer in charge must have two barometers, one to be carried by himself, the other to hang in camp ; the cook, if moderately intelligent can, in a short time be instructed to ob- serve and record its readings, and he should do so regularly at every hour in the day. By this means the Engineer in charge, (who will note the time when his own observa*'!ons are taken) will be able to correct roughly all hisobservai? / ;^, ascertain by comparison the height of each point above the camp (this being known), and thus be enabled to reduce all to the level above the datum of the survey. Barometers will be furnished by the Government. 12. The Engineer in charge will find it of great service while exploring, to carry with him light steel climbers, made to enable him to climb a tree with facility. By this means he will frequently be enabled to obtain a good knowledge of the to- pography of the surrounding country, and take such general ob- servation and bearings as may be useful in directing the survey. A pair of climbers will be furnished with the stores for each party. m\ 13. It may frequently be nece8sary to move came when circamstances will render the available force of packmen iimde qaate for this duty, at such times it will bo proporand expedient for all or as many members of the Staflf as the EnS h charge may direct, to assist in this work. The En"?n?eer &udTmen??T •' ^7-'^' ^^ «»«"'««tances. In'Tse h delaV theTurvey ^''°^ " '"''' * '"'°""' "' ^'" ''^^^^^ «..♦ *^ Instructions for the rn,strumentalists are printed on the first page of each of the "Field Rooks" (copies accompanW^^^^ thl V"^T-'^"'^ ^'^ ''^^^ '^ *^« Engineer in char^Je to ee these general instructions carried out. nfhJ'l; It is important that observations of th- pole or some other star should occasionally be made r^av oni. in eveTv ten miles) when the weather will admit of it's bcL done ^ order to check the traverse of the line. The latitude of ce,-t'a in points should also be determined approximately wheneve a eZpr'"?K'''PP'''"i'*^"^^"^^'''y ™^^°« ^^ an observation of either the upper or lower transit of the pole-star, or otherwise the Engineer in charge taking care, hoover, hZ ho h Tese objects are effected in such a manner and at sich times rs not in any way to delay the progress of the surveying "any. fKn «?* ^* J*" Starting point and termination of each Division of theSurvey, the Engineer in charge will see that con.nio„ous^Re ference J^takes"and "Bench Marks" are established wHhaTl neces- v w;u rtfe^rTh^^^^ ''T'-'^' and adopted datum.Ltrn - tCli!! ♦ I? . ''^". ^•^'''' I^'visions of tho SurvPv form a innr-- tion the two Ensrineer.. in chargo will see that the f.wot^a verges are properly connected, and the anffle formed bv thrf^n Hnl measured and entered in /\^ Lh J the'^ fed^Book "' The levels must also mon " Bench Mark vation of the same tive datums clear- thus: — party arriving at termination of ei on the next Divi.Mon will be the duty of the nection is made. B. M. 460.07 above Datum 371.40 above t>ATUM D. 1871. / / be connected, and a corn- established, with the ele- above the two respec- ly marked tl ereon, /^ In the '-vont of one / the generallr defined / Division before the partv has reached that point, i>. former to push on until a con- Dract Lnl. hnF '•^" opporiunity occurs, once a fortnight, if El * ' ^^ Enrrinccr m charge shall forward to the Head a^ou \ '^"'^ '°P^.«^ "^« f''*" "»d section, shewing with full details, the amount of work done to date. ^' ^..2^' ^^ ^* '^ probable that there will be occasions when earh draw5\ nnrnfP""; °^P^"^^' ^ coats. 3 flannel shirtrs pa rTf shoeVacks f towe '?!'' . P''7^"""«- ^ P^ir of strong bSotso MioepacKs 1 towel, 1 brush and comb, and a few othei- smftll articles; the whole personal outfit mo. to exceed 30 pounds The Rngmeorm charge will, upon his party arrivU at "he end of teamboat navigation, see that the ^personal bagfage belon^inJ to members of his party is reduced to the above^' Itron" canva! bags sufficiently largo to contain Ihe outfit and one nair of ." cad, party to one rifle and one double bar, elled gun. 1 St. The distinguishing letter of the Division of the Survey. !,.„ i"*^* '''he number of camp. TEach camp should be num. bered consecutively from the begining of the Division.) 3rd. The date of the removal of the camp. campbgg^S'nd!"""''"'"' *""""" '""' '""'*-'™ «» ">e next 5th The name of the Engineer in charge of party. 1:3 i 1 i 1 1 21. All field notfs must be clearly and distinctly made in pencil on the spot, no additional notes should be entered with the original notes after the day on which the latter are written Field notes should rtot be inked or changed in any wav ; copies of them may be made in ink and reduced levels entered" in ink. ':2. All plans and profiles must be plotted so that the endof the survey line ("whatever may be the direction of local sinuosities) nearest the Pacific Ocean shall be at the left hnnd of the paper, and the end of the survey line nearest the Atlantic at the right hand. 23. Horizontal scales must be 400 feet to an inch scales 80 feet to an inch. vertical 24 Without in the least desiring to dictate on the subject attention is requested to the suggestions regarding service on bundays. which have been placed in the hands of the Engineers m charge of parties 25. The Engineer in charge will be furnished with a diarv and a note book, in which he will enter daily, a record of the progress of the survey and every thing relating thereto. SANDPORD FLEMING, Engimer in Cl.i^. ly made in itered with re written, ay ; copies d in ink. D thut the u of local eft hflnd of Atlantic, at \ ; vertical the subject service on Engineers th a diary ;ord of the J, ^inuo«iiie.s) nearest the Pacific Ocean shall be at the lett hand of the paper, and the end u( the survey line nearest the Atlantic, at the riuhl hand. ti. Horizontal sca'es roust l)e 400 feet to an inch. Vertical, scales 30 leet to an inca. 7. Kvery member of the party will be under the Engineer ill charge, and must obey his orders. The Commissariat Officer in charge of the transport ot provisions will consult with, and be advised by the Engineer in charge, and in the absence ol thd former the packmen will obey the orders of the latter. 8. The Engineer in charge will name tfae person who is to take charge of the party during hie temporary absence or illness, in the event of his failing to do bo tiie Transit-man shall take charge. SANOFORD FLEMING, Engines in Chi^'. Ottawa, 24th May, 1871. ii I :\ :.* • • I- I