is ae Vo wt, oS e 2 rs ae! ae Precise Level curvcy of Lansin;, ichi-an. a ‘ bY Cs a i - Q/ H.Jolmson e |! 4 ‘ .* i, This tnesis was contributed by mur, O. H. Johnson. under the date indicated by the department stamp, to replace the original which was de- stroyed in the fire of March 5, 1916. THES!S Oi oe Precise Level Survey of Lunsing, Inghan Co., KAichisan. Tho reason for taking uron oursolves a task of this. Mapmituce wan te find out the difficultios encountcred in the ‘ field of actial work,and to goin a facility in the use of the “; instruments of curvoring. The object in fiver is to establish a eyston of procise lovels around the City of Lansins, ichican, ers! to iccate by moans of tris systom rolijeble Eenck \'arks at various points,upon which accurate work mey be besod.’ rior to thio tino the City of Lansing di4 net roneese such ea eveton. burther,tho city !s growins so rapiclz thet such a svetem @8 rrecice levolsitnuch Marks 4s absolutly neceacary for further work Guch as road bullding, paving, sewer construction, shdcwalka, ana the extension cf the watcr works system. the difficultica encountered were muserous,the main ono Sor us boing to obtain rosults which are reliablo. “his moans putting cursolvos on a plaw cqusl to that of t':e U.S. Coast and Ueocotic Curycy,witen consists of men woo aro Ofe Ployod by tne U.e.i.uovemp-ont as jiavin.; larse experiance and tooriloal trainins alon; this line cf worke “he alfficulties cnoo.mtercd in hanélin; tho trociso lsvel,and tie errors causcd by tnoose ca4frficultios wilh bo ctcoussed later. Tho 4nstruent used in tite works wea t.. Voast end Geodotic curvoy 1200 Dreciso Lovel ownod by tn: Civil Lepartront of the Lialtican Acrioultural Colle se. “ho maker was !.G.Frisher of the 'iehn Cpe, it.Louis,: oO. she mekak used for the castinss is @ composition of Co parts of soft cast iron,end J4 rerts of rrain 1 Fie. 2.—THE COAST AND GEODETIC SURVEY LEVEL OF 1900. Fig. 1.—TuHE COAST AND GEODETIC § URVEY LEVEL or 1900. a na *% y= .% a ~. . as +o 2? 2 _ ae om wo yey ° 4 “er é. rt -. /) me 4 . + . & we C.o 4S ~ - Tha G28 e o! al es an van ~* sory ce % ee! i" ‘ we 2 04 C. eng we oe wl - . > ww £. u a en * . a . ry » , tos C ‘ £ ‘ ‘ = .s aA a ws ae oa ee ‘, ot be eee, ~ Pa f 7 - ~ . a bh ad * “~ & . 3 1 “ nor docrcso oF! ee ye ef a oe i . {- “pw m tb ts vy. ee Re T 4 ro te wr OQ Ut fe TOC O 9 - . vO 5 AN £“-. - ~. 3 : . .* 2 « 3. ’ = at ve ys, ? ot 4 san ; c CVO] wv. BTN we : 7. 1 Oe o* Fase teow eye aojustt ic tecttiss ef t.. 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A «iW. ~N pw ee a: m4 ary? \ -@° { i . 0 , & - 4 ‘ "sn ad be a ‘ ob vy "Tr me we t 4 ~sr a eS w- ¢. ar) i oe: es ag tae a ‘ 24 -~/eee ce } we: aan ‘ - - ° i 3% ‘a f : v . . - . .. - 4 ope -.- ” : 6 “2 om - eo: . v8 . ae a ¢ # : al re": mn ¥ 44a 43 . mae, e - o. we rey 7 - ‘ oe. 9 we ° . i - @> €: { rp; Yo t net a & «a AG 4s Gr ae. NY A te wu a ee we wen i t, Le ee wes e. ove . 7 a “6 of “Ne . a r. . a ye 4 .& - 4 P, o- fA tT. “7 8 Te . . £2 NS n~ ‘ ° A a & a & ™ : , qen « ” as : % - s cr ‘ PrnP@y- vow rt . ‘ é ¥ oN Lie tue a! was OL - ely « Ad, Ol celle ou, ~ Ste eae. ha a! ‘. gvebh se LO . yay fe > Bw e foo, wees Dancy ~ 7 a +. Coes e ‘’ “oO LM ere We aL tute 69 I we a wkd & a») the. wy \ tnhad wf! C ae c - 7 4 ‘ wy om Hee an | + 4 . ‘. ,e@ toe * . * . > ~ ~ oy s 7. A. 7% , ‘ 84a eo & r as , wy wT eae rg “~ e. eg . oN a { “ae ewNoe quar on 12 ~oleor ED @- ow. 4 2 { Soe Sob. J. Y t eee ¢ . q@ a wa a: -? _ 8 - ° a . te - . e ° . ‘ eo . « > 3 e . oe 9 ere Pd o meal ot wen se we —rwo? ,% one Cv = “Mae we i* 72? arg. mf . J" 0 we wewen tas e ? wet ® , 1S Chen. bNte Ow ie od aL sas Cuil} oe : OL: - . tS «6 @ ‘ vo aoe 4S 4 be ‘ ~ » of or - tee tN de - ay - . ° “we - = , - - —a~* ws [ = 9. oe. FI ~.' ¢ 5 - eM 4a, +” 4, t ’ a ae, mw * 6 “ .h, at ey ee ry * 1” _ "yr. . m7 ECL 1 (0® a = wre nd wi! ah ote 3 wa as CNG ‘ -, YX ess -' we Le. vd aos fw be C . ' Rae ‘ ow ve wis oie ic 1 mm a7 ry e ‘ . ( , ‘. - ed Se se om my y* 7e oo f 0% .? ” ,’ % . * “~ , - 74 _ ~ - ¢ t s , los. 7 ‘ “e “sy : . > bene tw wet wee’ = & .- WV ? be. / ee ed \ +e wee Ve - ~ em ON et . ’ “- w ~ wpe ew 8S aw ;* . ag rawr st mote 9. te eM wa me % 2a oes oS yett $*.. “9 gate Loh aa 3. ts. ahs Gus ww te au: A. . e Lo — + at. tte ure ts 2. o . ow ~' 2 \e om! ~ oe oo... OO a e ry f--4 vet a : ts € 4 ~ a | , a4 ’ ad ° 3 » evs a we r a a t~ "3 e * om 2 . J Came ’ oe a ‘e @é » -@ ~=a% a I... a ‘ o Sop “4 « one . & , “és “0% 7 . ore . df. outer y= deovei wou. 4) 8 waver iis ihoans carrice ve Like. 62 tO Ff ett ere Owe tl A 8. aw 64 Ce Ste fastened to tio tube itself. the viel is confined longitudinally by cork rings. The level tube is fastened to the telescope at the objective end by means of a sqinro hrw.cd vertical clarrins sorew,whild two opposing sercivvs odiict tho lovel laterally. ‘vo slighily enlarscd pertirns of te telescope tubo, which are indicated in Fic. ,are turned to eonal dine moters,and are co-axial with tho objective head and draw head bearinc. Sy means or wene collars,e 4? suitabto shop contrivances the intersection of the vertical snidor trread and the midélo horizemtal threal ie so adjustod as t4 co-ineidoe with the veoretris avie or the instmment,thus avoldinf error “uc to tne divercence oF the line of sisht,and tho moticn of tho draw tube. tho Iectol vial is also placed parallol to tre line of sifht in the shop,before tio Inatmmrent 18 finally assorblod. ihe objectivo has oa focal longth of #11 ccntimecters. Two Steoinieil eyeplocos of ©.5 and 12.6 milimoters rocrectivelyz equivalent focus are provicod,liaving a macnifyires rover of 45 anc °° diarctors. “he srston of crider throanca consists of one vorticel ond ttree horizontal lines. Th: rpper end lowor threads embrace a distance ef 50 conti eters at a distance of 100 motors. 2ne Level readin> devicc, the cyo tube of rhich has been placed ct tinoculer distance from the ovo picce ef the telcsocre, tims cnebles toe chsorvor to centrole both tho rod end the ievel bubble at the e.ro timo. ano 23.es0 cf tho HeMEle and tho scalo adivisicns near tlio counter of tiie bubble run are refleoted by the nirror above tho oroning cf t!.o cuter level tube into two priers, gui ars Povlectced Ly tocr. Auto Win observer's evoe,in ea direction raralloi to tna ccletoors Tne prism has curved surfaces,anc toepotrer with a loms meuntind hetwoon then and 5 2 feo » 48 * 2 “. _ 7 ~ pt. “nt ys ~ the evc,reduce tito distanced betuesy t.:7 onds of tie bubble and tite co to tia normal @gisrtomea «cf Chettyes vigictie . ; - & 2 4 . 2 7% gt ly : ~ oy * 5 . ” auto CBLCNtLAL Teatures of breucrtunco of tio rrocise. . 280 irstrustont is irreverelbic,ard as ci rio as posulble, womee Lto momitulaticon is necesvarily a prepecan of oirrie observatios3 we stl GeOSion of t:.0 Llnsurument is euch thai a Giancc of tormore aturc wlll net intrceauce error. Oe the bubble reodgin;, devise cnables tis ecbserver to ctane erect and Wale very accurat: resciries of Lott) rod and bubble alrost sfiimiltancousl’. §. ic instrovoent bas a crall surfrce oxporco: to t o nind. GE. cho instrorent ic heavily acriemed, which alse becl:s to aveid wind troubisc as ruch aa rosaeiblce. 2>pe rods used are those of tea rosulation Csast an: eeodetico curvey type, boirs of the crossesection crown in Vice - they aro made of iwiito rinc, thoreurhly beilea in rarafe fis: and ere 3 1/3 metors Lore. The red is divided into retors, aoecti or+crs,and contireters,2rd malivetore oro cotiioateud. Gio red 23 waintod alternetlyv black anmicweite ver ooaccs of ono contie notoer a3 aham in fice 0 wO Lisures siovwin: tou cistances on the red are invorted go that they canis Ya. erect whon soen throurn the tolcsontiae Lhe ped is also ecuicmod uithi a scherical bubblo by [ | R s s & | = & “% & —. | | | hing H | ' z | \ Q | - o ® s 4 S f z g a > fs ° Zz ° a U.S.C. &.G.S. 1900 PRECISE LEVEL. “IRSA “AK | es e ; rn : oO . oes ie vy ee « wee Fw 4 te? - # “Ok a ‘ (8 7&8 Ot & «- 2 a & Lo. eee er o . ) eoee ” st é 2 Yor rocordins tiie tory CVA Liab" e » 4 ry « + es oe « * s =, tot "9 tC Can pw a er a.m Fe ¢ _ a 9 te pw TET ee 3 InAs ar ew C ih ht b ot Cy] trir Tl C2. 1 ee Fo Ne «20k 4.0.44 ha GS yy Qs Cw - Q a” oe oo — 7 +, . . + = . @e > o £ - - te . = . a) . - = @ 7 XN . “|” < 7 § 4 » tae D> o* 7 <% * we . os : “Nt . e=o4 om cof v: e 1°k% (.. + wt + - oP we s ave Cc. ee mm cu. CWT SA . . Hote : ‘ oe e . NA, . tT: en. - &: + ty ¥, owe £50 - . 4 . e e - Wb Mee t o.? e . . ‘geo. 6G Cure ¥ & 0% ‘ww yoy Ay od * py e* fee age , .| . £ ee ‘ i) ‘ ’ f » . . qo < Nae i 3 © oo - ° , vy, woe ‘fe ’ ar 24 £3 8 . . “4 . , een Gr peeeoecrme. ‘ . . f, * ‘ ae * ~~ 3 . ‘ ve A “ye 4 @ oS roots pew Pid w-tee ae teees SA {PPP Ayo ee ps Tang sami Ce SD acevo Pfs wee pow opeior digvfeorecna ateces heeta eeriisn Pe moro 32° a R me es gy 7 soma n ‘alt © hee dys. ~~ ty ty am vue LY q 4 a ewe ™ ‘ * ~~ >" s. nx .. 134A ~ Ss PNG} Se & ety a1. cr 4V og emwe en ye? ayes 7 Se wy wer way mg, EF. WN, meh ty a. . wa o QO . , ; C° >. > J ° : Mj tease ’ L . aA k &® wird ote eo w Ce Nat - ~~. sce - “ L Rw ~ ~ - tas ’ e cd ~~ we teehee ie «. . . & oe 0’ we j ao ° ve ’ ‘ * 7. - we BR" -- . * 9% = , eet’ ? e-em t ‘ f " “9 ae 73 py a . , @ £2 - , a 2 “oe : ith oe Fed 7 oe 4 vs a3 Soe 4. - 08 ri , Os one t_ a w~ Bw ae « é o> \ feos i rs fam |. mo -. va ’ *. .o+ we & wet che wwe \ 4 nae 4 » - 3 - a a @ ® . . yc: “gst st Cexey ® aed er%tse rege ™~ aes x a° 7 e- 4 , . ary ¥ ™ : qm 24 o ot - 2 ve Ji ‘ vy 4 PPC! ‘ _ 4 i 2 “E> Ji a2 8 *. oS of ) 9a “~ we eet Pty @ res % “= a Wey te WN -F* wae wre ES yy cee Ne Om a 143 saw « ‘ o ry “a5 { NS C),* q ‘ ast ‘ : . . wee + mae ve ° (Se * r ~~ * rye eee. - a. JZ - os : . q. =u 80 ge ‘ “4 oe ef £3”. 4 A. o fo. . et: ob Qyos Pye wv = Ur: r wore yt . an “~ ey 8 a8 _¢ lad met ty v ‘ : Me o? ae 4 (7%. . : a - = ot 8 o* LU . . . at oe “¢ 2) 5 ' 3 me . ee . siden wo Wyatt oT vernon 4 ; 3 1 ~ vlogs: fan Db eee oa 47 a. * 0 hee 4 al “ «4 ‘ wa? ~~ 1 7 : « ', wav a le t. ‘ e &tr vw we Ly e+ « ae Q aw) a. . by rozt3 of freamo Levelt cerrveonettr ovo ft. bo teers ern. Llevol eo oronir of toe ehercines bust bs: tutu em too ic. ort te no oN Fe me ae my a ae vad ‘ 6 Pos 00 Getrpcteste we af opts tomes foo vor yp oped, lta Ooaw tees hover wae Gre Meo otlaew roots *ebececrs to origi uvton .*. s tice A ee - aes -. 2 8 cS \ 2”. an 7 re i? . “ee te ° . -, oo SS LORCA OCG Gitte te Pom Vie oF Se shea ven Peoques sl ween too om Neale a . + eet 7 o. . en "tg - .F ° a 7. v " ¢ + é 7 5 my 8 Taye A eo CT net one gus bor ccc va obtndret po. 8 soot te tepble was on -- e " . . . . ae a 7 Ay a > -» oe 4 oe » acts a fv . brave, bow ovo eonmtor cf 4£t¢ run bros ecarc cPoa Por teers of t> < micrerotorm covee Woe tuble nom cote 2 Gleocly Ler a fov seecw . od vo og weg Se = ve Te ee tgee cee . as Gam to pee bool, oe eal om ed bag tape. gyyuc wipes hein: wet 4elio:: as rapidly as roscsibto.e At tho cond cP tho reacine: notice Ws boson. t a. * . _ ‘ . ~ ~- . en e | : . t @ » WF yrresy ye Ne ab y ar? ae ees ' ep; ‘ \ yrvae . aN o> dL ®, ® - “ ? x Se og f ~ 40 Ve ub tals wl WOO Eros Pl DMD. C Wee OV BYS Gil Cey or Oo 2tS rone om 46 wen net. toc St Cente was Gono over until i & tric i @ Bean eck de a VW eid rb &..-53 Osi hoe aco lee SO! raG aD L* oO Yr me —_ . 4 an . 4 2s : . . a mn ete IDC t wy Ors L778 VRC ES + oy we be wont ry tes > . * * +s FQ Eh epee gs - ans to NA | ow ye. uy A. wf ‘es . _ Oe ee te oe ‘ONG @ £5 £L oe .« +6 &' 4 - Vs ". ma 4 ~— ~ Ne wor ww Sw, .S, CO. é : £* u ms r» “~~ 4 73 _* . ty ” * ws . . 2 * = . . 2 . . ~ : - 33 yo Bp. f +l om eS 3 . - 4: ‘ ; mt ° . . . > , y ‘ » : 7 eer » . . vu 2 wie +h tw SN” Soa oe ae . LotG oe ' te f 77 , 4 “AN ow howe - a es a . Vow obs O84 - ". . - hd 4 ~ e e oa tee Og Sue yO awe ef bes ete ne iP Vee we mee i we we - w- oe oh & ° »e & she Oo OT aA * 7 so oe ea - -sh 8 oe oe ‘, tees =IUt. vA oo “4 5 ws a, , pS foo. oo. ~4 3. « a 7 O74 4: . ° 4 . os ‘ Pee 4 ope oP, . . ory- os ~ s ™ ¢ wd 0As ae ame oe x se » ms Ny? > 7. ra . +e f, “ . . bee . 4. Ste Nae - my . t + ‘ te 3 Be bd ‘oe “sy u. - » % .. ott y Hey v . 2 e : a - * : 2 “a lf . ¥ : af. - ¢ . ~ . , : ‘ ‘ _o ac etm, é. ~~ 9 os ’ ” ps . ‘> Ort iN tf f; ars t cl - boo a0 ’ a ss, 2 eeme 8 haa ° a es ' ~ e . “ Se hal S : fi . . 3 . ’ ,* - r, “ “. pes ~ «. . ue. .ed . . a: Q a sy ‘se y+ ? +e af 1B 2 Om wee a t mea, a, ‘ ~ «A 74° J. “ ~~. - “m™ 6 . . d& . he - rede a‘ hon. i Voto. ar ‘ eo» WwW. oo hs e's . ow 4 ‘ @ % ‘ , . *. ne ee. , f° 4. .o7: _ sf ; ‘ ot ci™ 2 x °.? | “ ~. * ~ a . pte et Ne* bee -- . a a \ et. Je av wa wack uw * . e - le . #).. on . & . . . ° < 7, J > . a | . ’ e.. . . - ‘ a’ : ° : aa me a we , e os “y* . 5 you , . '.. @ . - 4 a i ta oaee -* ” { “ My Gun Wee QC. on sy. oe \. se hoe { ‘ et mu ~ 3d: 7% “oe ., ’ meet wo teh @ . ; | : ” . a “2.8? ow} °° “ s . =e wn 2 Pay &. poe qQ~ oo 4 wnt . oe a) Pu ° 9 ¢ -.y 4 a fe me 8 o a» ade . whe TD «+ ad on @ ° ~~ . we chim we a x bo midocd tude . C4. , ‘- G, el “ee \ oe gh * amt a.' tor wo Loe 4 ted « ake i Me ae * “ . ~~ +. @ * aC. ea! oS. ’ Loo. - + 3 -% . 2? ~J e ab YUNG oe aq" +<,Y ory Berger sad “y? + , ag At hel oT wy eed eM ee > .|% : 4 ea ao z --% - -# *@ ar | Cs), VY \ Re 2. wir _— T20 . . a ‘ ry at . faem. Qe J we Ne \ * “4 ut Cc oO.t2. ww) o« ~ Ld 74 ao . . » wm S 7e~ 4 ‘ ~ WHrdg” SW “Yow oe Oo. {. we bd US wes @ . * “+ a . n ry — , "4 yer a nr aA 7% 3 yey re } ’ a ‘ * . . * 3 7 ° te. . y _ ° ‘ - % adi 4 “ _" . @ + Ok : sis ome > v. Ga. ‘ = we wen ee te wo Ss te a) ry wa. oe bs wo. ee ae rh : ors tates . a4 .. ° ~ . ~ . = r J ", oo , , . eo . a a : “~“ t ne . “yO ce? é: 4 Sa t nee fh fe , 7 we Oe wt \w ad sigur ? oy. wee 4 ot . = o ° a : 3 a . eo a 72 n~ ~ ‘ nm ; . wr river yy es oy vy | s. on , an . : eA ~ ake = om, vet ee - 4 ery * a &. | . _* & - ua he a tor wd &» ae “2 rte — ~~ 2 wd ¢ . we } A New fe ~ * ves, Ane - aw ‘>, . . La «we 6 * . e ~-% . ' ~& ue. ww w- | wy oe * ra eek os srt + «4 Tey ete oO lhl!l} le «.° ‘ae det sate we am bar @ ow . . . 2 . es eet tswsen ie aa \ eons is 7. .* ‘ é @ . ~ & f 4 ‘ “. -_— a ‘ tv) ua hae i. 74 e . . x . wy, e @ . - . 2, 8 »y mo ~~ gr » ~~ N® r * re f . r% ' > “~\ s : . . rt 3 “¢ 7 . . @ . oo t ‘s ~se 40 Roniw be te wee Vu So ohh OL. ’ we i . 4 @ i @ cf “ . e - ‘ ° 7 a: . we. & . . ae 6. « . - meee “4 Wt gt we Wee tt, feet - a. @ ’ t -°¢ a ¢ e. . al - "- . ‘ ‘’ wea ‘ a t, . “4 ate . ~ . 7 aa ° *! ae we 8 4 a ~ , 4 s eo ~ Mwy te Pag 4S re oy y FF uy om ~Ppn.. => oom eee ga ~ e - oN C, we ‘ ‘ - be we Bo aS ‘i wot A é - dE - a 3 "as - Oy , es 4 ” - a. 2. ev “be tr - OR ow “ «-@ ~ - om -* 3 a a -% _! x , -~” s. _ @ . : . . ° : ; r ‘ as » ' lf . q . T 4% . . - & . 1 -2«@- *. Tr voy ‘ ‘. ao .teme Oe Rew in asd ae? whe. z - vane bn | - - - & . 8 > - ws ao ‘ ,* i 5 , ‘ " yer Ow ea oer PN HM US Loe YOrP ON GO Wr. @rs , _ 2 - « m= . . dé 7 . a "Oe 89 - —% % ooh ec , mF 4 oe or) ~~ - : Nee ~ Soot + ‘ ay { J, - @.- e , ’ Cet’ ga cb! uu io ty. .) 4 a CO e- t ~ ed .} x a8 6 > , . . “4 & 2 7 4 oa af . % ar she to ’ 17 ve tesa ds ctl NYT weet dg tres et A ties Lie. DCE Nade Note O GLa Vacca. Tis GP 2h n SUC Gs ile rs ror aus we vo. ~ -3. Aa *., we e ae ; 16. OD Gt OD CO Bn oo an tompore Laave -iimninatior oF .orcrs. im to Piret placo,vee of to. abeve errera cxzist in tha distort. ore Gue to Roimretom worl umsiite. where aye Jes 4a s wry tasers wn Bee My ets ty Sewge “7 e, aan “SMOG at a Guo to nmaeturali rhone sn. ees ayo mere “d 1% is atrost Irregcibie to areld tuar,mebs 2.3 com tliat an, oumarleh ort bocries of cao lao ef lLocwbeloa conesinmiting thsir nasi tude POWOTSD, Wel oct Amroruat om bo coviasol,or Gore Ge 2G Lop inetoveoo, too erPoot ov sor pera b uroyit te. Suctiiv out va Plier bo a uinbwst,as teu: baci Lh. wes Boa dod witi. n large woborpolla wille boim: usede “Gara effoct os to2 Weodousse tho croavect Glollowity §5 LS overowuie, tie: OAly way out cf tic u1LDDiciity Was to curess a tiie Por tha aerk wron wie Wind was Lisite Shic leaves criy the crrer ovo te unemy bec: acd Tare cig;.ts t7 be taceon enre ef. Unio wavs aon by erortioning toe error accerdin.: te tos thuare reat «cf ina > on ry te Yoo OG bed. vot Ta add & . 2, » ae ook 83 icy rovarl to 44 oat m. a CONC UMN - oO} f-opiocw. ooebaty ot Civil coclincoerc cme cited. "this hovol not quo orkier ta a airy blevol,inm Tact oto in at oterde wnt ceorog ty morsoce toys virtuco ef 9a mrecite Lovell. rn coin dt §0 2 Oh Poeumt that som: wot ecm met bo dere woth ot tag Mmnb.bet Diet 22 290 citi lcult te ad-uem the 27 errers at a|cgucl cut,wd acyal exelownst bo taben fev crantod,wte tee posvolti cf oeureto@l werk beve tent ft tho cheorvers to revard with mucorieton. onn sat * mn mA et an, chan.:o in tho fi old. een bore] ram 4°. ~ 2 aa fe 2 a aa L..3 Geimton of digteront eutiert t4 te vords of or. Voliter,! erper - toe $e Eee henge we Te ata - to ‘> . pematndar and thn Prt erney 3 ee, So se chevldor Mon flso the lovel ttibo is not dai 7 ne zt & “ <«e oi F aa ry ade he a. t* 3 ‘. oP) tO oy orror 6 a a- . . oe, so oe . uy Teme 8 ‘ ..e wv .3 8 ; Uo --Q TU aw. wee Gs tt ce lel oe West wk we wee eo See = YS de AL he Rie wi wi. & be ta ome or Oe iu. G a. a . - . - 2 4 ae * ~-_,* ee ? ‘ *¢ a I % e po Peer te 7. 8 ye? “VWdrionwn ' . . . a - » a oe, .- * . ’ es facp (0.49 ur ae ha he yy ur oky L. ee. id rt oe , Neeley! Ge Wek whe bY. + realy new fa ee, ry ent, Se be pe 8 Soa St by te : Tan - a gd on Ae: 5 ”» ~ : e® ’ o . . . 8 re, were ? _ * % Med Oct, 2 i» Leyes yee +2 a: 7 avy . j he, ‘ be , ae Tasq ok Bon. a Tr ret OO @ The problem of adjusting the error of a line during the day is of great importance. Messrs J.EeJohnsén, H.M.Wilsom and F,J.Hayford have presented long technical discussions urom the subject of error. They all agree upon the following methods of — edjusting errors as given below in the order of importance. 1. By the method of Least Squares. 2. By the assumption that tho error is direetly propor-~- tional to the square root of the distance. S. By the acsumption that the error is dircotly pro- portional to the distance. the first method of adjusting errors is in use in a large n network of levols often several thousand miles in length. This method is the only reliable one for the case of extensive survoys,and for very precise worke The second method of adjusting errors is held by most authorities to be sufficiontly rigid for level lines of several hundred miles in length.This method is aleo usod for adjusting the error of closure accumilated at the end of a day's circuit. the third method of adjusting the errror, e.4. the error is directly proportional to the length of the clreuit is also commonly used to adjust the error of closure accumlated during the day. Results secured from the above rothod seem to stend the test requirod of them. Prof. J.B8.Johnson holds that this method is as reliable as any of the agove for short disstances. Then too, the matter of adjusting the error should bo a case of judgonent in some instances. «ith these idoas in view,and also the fact that with the instrumont usod,the only errors which are due to observations, umstable supports,and atmospheric Yy conditions aro apt to orcop in, this method was used. Any other source of error was not of sufficiont namitude,thorefore it was noclcctods the Intornational Coodotio Assoolation have Pized tho the following linits for probable error of tho moan regult as follows,per kiloeneter. ttl rm.per kilometer is vory good. +2 oe @ ° a fair. + 5 8 8 ” e ® tobdrable +5 e fF on @ ® to larce. fhe above results ere esteblished by mon of bread exporiance, toecethor with the best facilities for dobng work of tho extreanest accuracy. The limit of the U.S.Coast and Goadotic Survey is + 4 mm. per kilomotor,and that of tho Lissipri River Curvey was + 10 ra. por kilometer. While this last normed linit was cocidod upon as our critorion in accuracy,we have with throo exceptions, attainod the desree of accuracy equal to that of the U.S.Coast and Geodotio Survoy,as shown by the following tcble. " LINE. Kilonot. Act.Errer. E.por Ke Oe ea Belliel, to V.G.cor.NgBk.& Logon. 1.2275 0018 @.0014 20044 ¥.8.Locgan,noar Hyland to V.S. 1.6590 =. COBO #0050 eCCrn cor.tranklin & Wash. V.Sevach.& Franklin to Belied. 20402 @.0051 +.00355 eCOCEF B.li.B,and V.Geon cor.Sheridan C706 @,0021 @.0020 OCS & Ponnsylvania. V.eSeon Sheridan & Ponn.and 1.2405 #.CO58 #.0047 sea B.H.7,a8°O%0 S.Pomn. 1.0565 4.0019 +4,0010 .¢C41 O28 S.Ponn.& BelieB. 04725 #0042 o,0090 COz7 Delieh to Belle 2. 21.1599 =, 0040 0045 F045 Allowable Liétance Actual Lrror per Error for flo. Error. Kilo. US eCe&.GeSe B.el0, to Boel] 141299 #0051 #,0027\. | .0043 B.Mell, to V.S.cor. .7010 =,0044 @.CO80 20032 SteJoo & Logan V.S.cor.St.Joe & 07773, 003140 0085 Mich.e& B.tel. wi ose hake B.Mel, to Belie13, 1.2347 +.0045 +.0035 00044 mm, oes saw DESCLIPTION OF BLIGH MARKS. Me ie X P.Beiiel, soventh brick cast of north woot comer of ud ohi gan ave.,School,on corner of Michigan and Logan. P B.M.2 Top of the north east comer of bottom step of east entrance to main Blind SchoolrDullding. P.B.L.5, Top of south west corner of concrote foundation of bolow corner window of tho Walkor building,on corner of Franklin and Washington. PeBlied, Hole on top on north side of water trough on the north east eact cornor of Case and Franklin. P.B.ue5, mouth cact cornor of top step of south entsraece of tho Yranklin Ave. School,on corner of Franklin and New York. P.BelieG, On the south west cornor of the top of the stepping stone in front of 737 lorth Pennsylvanias B.bslie7. On the south east comer of the top of the stepping stone in front of 1:0 South Ponnsylvania. P.Bel.8, Comtor of the top of the North Vest portion of west retaining wall of the Grand Trunk Bridre over the Kea kivor. P.bel-.9, the south east cornor of the top off tho Lron pedestal supporting the post which supports the South Sast comer of the roof on the east end of tho Crand Trunk Depot. /t P.Beue1IC, On the north onvt corner of the wost pier of the Grand frunk Relke Eridse ovor tho Grand fiver,Vost of Wachinz- tone tore P.Betiell. Lolt hoad north cast cornor of tho nort:: plier of tho Logan etroet brid:jo over tho Grand Rivers. P.Dele12, North wost cornor of the top step ef the north entrance to the Logan St. School. PeBelielS, South wost corner of the top step of wost entrance of City Hall. ‘he above bench marks can be found, martod P.Bellel, Pelelie2, et0., (Procise Bonch Kaork.)} as shorm above. The Valvo ttoms of tho hydrants vore uses as tuming points when avatlable,and are locetod on tho map.eacorpenying this thosis. the above procice bonch marke ere also show upon tho map, tovethor with the lino of the procice level survey, amd the comhéurs at five foot intorvala,which wore talon from levol:c obtained Por street intersections obtofined frem tho oity encsinoor. this map and tho noto book will be found in tho pocket at tho | back of this theaise All nhotarrenhs wore token from cute found in en artical onnthe preciso lovel in the tronsaetions of the Amertoan Soolety of Civil Ingitoers. dé: wedern Line GEST RAM) AND VGN TAR INLAND Ev. POLracl Avs. popu atoms TUUWAGT OMG, wire Kceadings Per Uity Above meee? over Pony Ordsival Cerreeted Datum. Coa Level atineters Loters | Matera roaste TOS LBCAE TTC ACER TSR RFO ARG PSH “yon .orne Sale CF OLN TES .OFFR BAS, G4] UE Tar Fee ree Ie TSE TRAE PCG, 147 PP RTI? ON lee Aa Tene? TER L300 £61,888 acne: Sore CP FAG 182, R02 ARO, PPP Pe tl OOM MER TL OF PCD TBI. 5n4 BAY, 909 wi 7es ef, LIS] GE. 1YO8R 1868°,0257 #58, 620 unre OG 4407 92,4407 166,416 863.000 Lip meycttycy.s HE LASCA OP LAZO] 164,874 &41,889 Ry NTN ee SO BORE OE 8G2 TET PhS ECS. PA TARVIN eM yA ran CO TAA 98.7783 154,108 B60, ve. ae al - r 11,1223 Cheek Lino. Cheol hang. Qe KT AR OR EES an of ee 17. 1Nre . ~ ® Roo. 825 US 87 ITAA L, CARI OO, FLOP 4 “Pers 69 + 1. own, 99 On 25 ay FO “ ARAN qe we od rorwsra Line. cr DS . VEN “nn Ate F&F 11, . AL @ 4 1.1 4 Sura of Reb. @11,1°563 8 rest. 9.7PO%F :? Ac ry an RAG ray 4) op , ¢>@ tb. @ of @ . LAC YAN LV KAGe 9 iecenenoe = 1.2998 7oPZ OLOH LPOIN OF PERS ol] 2788 oe LPF DTA LITT Oe EE . PePOP « ~COM 4.00 OPH 100 3279 IN,FF LIPB T,CoT SNA 7.20 8,24 LEC .FOSC er wee Fy VS bly Li PT .CriT ].7*r ON en 3 Jara lor. Ve5.0n Hvd.on Lovan near Evian. Ca T.P.1 on cround,2 OCC'froti facina Ww T.P.2 tt " ° mane wv w cs ? “" rr) « --. - . ’ ’ VeSeon Hel. .N.c r.Bbexan & Varmmor “> @& of. mt vo . “ ae aC: 1 eOL Tarra woe 2 FX = ed “TO eR Let e407 re ema L.Pe4, " " & Togsors. TPB, 2 CO! N.U.cf Blind Sehocl + d.o0m “\.0.cor.lrani:lin & Pine. V.E2.0n Ev v Voce" "on Nw. " & Ohestnut. Veie" f on N.Z.cor. " & Walnut. Venue Foon NW. 7.eor. " & Seymore. Veie " on NT. .cor. " & Capitol. View” " on N.”.cor. " & Washington. a’ - RP? . OGL NM cM TT » 4 well GS uw ve BACH SIGETS Wire Roadings Usnor Fiddlo Lower Contineters 11.17 32.71 414,19 Check Line. V.o.0n Eyd.on N.W.cor. Frenbklin & Washihgton. V.s.on Nyrd.on M.W.cor. & Capitol. Vevueon Hvd.on N.V.cor. ‘ & Seymore. Veo.on Hyd.on N.L.cor. " & Walnut. . Ve58e0n Hud.on N.C .cor. " & Chestnut. VeS.0n Hyd.on F.E.ocr " & Pine. VeS.on Fyd.o0 N.F.c® clind fehool Building. T.P.4 cor.Varmer & kogers. T.P.3 on erevrd, £08 foot Last of LOZan. : ‘Contimued on Page 5.17 B42 7.62 me 78 6,91 8.08 Bel B49 7.77 21.38 22.75 23.97 29.70 25,22 26.71 1,2 2208 4,% e 59 (10,62 11.70 0 OO 3.51 4.60 2a OO 08S 4,88 4,oa 5,13 7.02 1.16 2e2e 3. A9 28,52 25.61 76.83 11.02 12.10 14.12 6.11 £7.01 7.88 27.61 28.81 29.98 16.79 17.88 18.90 9.72 11.29 12.79 7.02 £45 9,78 OCe17 $1.41 22.61 pe 10.59 1 -) o75 12,52 PND FRANVLIN AVE. Mean eters. 1.2990 «8470 eo 02734 2.5210 2 LAAN 1.0686 » 3500 - 3930 ~6110 »2290 TT. 0149 1, 2980 ©7000 228793 1.7866 1.1273 C423 IZ = . 1496 1.17135 2 *4 LING WOOT VAG ANEAR RYLATD soc ahb FM? VeS.ON TIL MVS CACINOIOh AVE. e C ‘orvard Line. POE STUUTS VU URE TMS | wWirs hearings | . aneker- oD City Above Upper Middle Lover Moan OFteinal Corrovtéd “a bevel Jeckt basi weeds ARLES 2 berth. oOoCte 8.790 UO.55 11.72 9B 7685 0B, 7680 Lieb. IO = PbOLPVFY Ged 10,85 11.72 2e0018 GU.C227 OfF,0133 2S,06068 E°)7,893 eee) o7,.60 “i IZ 2.787KR 8S,F84Y BE BABAR eRe ERA, OS L 24,47 1F.°8 1.44855 97,1088 8,106094 U5 4860 EFF, OFS 20,.F 0 JED 2T.17 Le1ESG 85.5708 85.8710 145.715 6 £ e - 2 - > (Oe1d S1.47 T0.°8 3.1446 ‘6 9 BD eg (4,900 LeO eRe C47 449 4&0 C.07 7.85 070 96,652::9 96,6341 LevV.l4éd PhO oe 7.7 ) 8 pt pw e 9 Oo ey “7 & 95,9555 96.6547 144.979 Chi, 564 17,C2 1¢,2° e— Ae) ® ¢- v3 ius e O5.19R9 SG.20C5 Debs bon eae .con 27,835 (0,090 99,907 2.8000 82,0089 95,6707 Ws.00! 640.900 06492 Tent 8D ePTOMG GSR6E009 Ce.S529 L559.066 E49, Ba] an 24. 32 2.6] 26,83 2. CECE &9,.S&50 29,3975 1336009 Cag" Sh] eo SLL Cisce@k Lancs. “ +a 7 Or { 545." yr: ee ° re le 1 ba @ owas wea wid @ twee WV WO fe O64 oe la? t ‘@:- 44 11.4: fyi B80 ghee ft ene cue: Hell F972 SEL CPTLE POL ESE ates ek f wat ‘ kel. @ “AE fe _ “ yee, ; Qe Oo Oelsl 4e EW evi? me LG tithe Alans 9 as Avo, 3 11.°3° da: Se & ~% Cr} eee BeT2 tel ae ETS et SOE " Belle. Ad ALGO) OTE OS CF showy 10S 656.088 Bed ehO ra BQ OBE Cape eee Eerees 4c w “Se wets @ BAZ a we | ‘ vow NO tat ev mee oT LPP aS 22.55 oo @ te yee Pee TD. a 9 - . wig ee CA “cnr cr on 4,.6C Eg ow Te eG Che OIE S5eCLL7 conditions aro apt to orcop in, this method was used. Any other source of error was not of sufficiont namitude,therefore it was noglootod. | the Intornational Coodetioc fssoolation havo fixed tho tho following limits for probable error of tho moan rogult as follows,por kilenctcr. | #+1 rm.por kilcreter is vory good. -o Ff " e a foir. +3 e 8 ” e ® tobdrable + 5 @* ® on @ ® to larve. the above results are established by ron of bread expcriance, toecethor with the best facilitics for dcbing work of the extreanest accuracye The limit of the U.S.Coast and Coodetic Survoy is + 4 rm. per kilonmetor,and that of tho Lissipri River Curvey was + 10 rn. por kilometer. While this last nemed linit was cocidcd upon as our critorion in accuracy,we have with throe excertions, attainod tho degree of accuracy equal to that of the U.S.Coast ond Geodotio Survey,as shown by the following toble. _ LINE. Kilomot. Act.Error. E.por Ke pen Belel, to V.6.cor.H¥Ybk.& Logan. 1.2275 =.0018 @.0014 0044 ¥.8.Locan,noar Hyland to V.S. 1.6550 =. COFD @.0050 Ctra ecer.franklin & Vashe V.S.Vach.& Franklin to Beliede o2402 @.0071 +.0055 eOClls Beli B,and V.Seon cor.eShoridan e756 #0021 0050 CCL & Ponnsylvoania. iki te eae 1.2405 4,COS8 #0047 tr amy B.H.7,a8d'925 S.Ponn. 1.0365 +.0019 4,0010 .CC41 O28 S.Fonn.& BelieB. 04725 #0042 o,0C690 C0r7i Delle8 to Balle2. 1.1399 #00420 0043 a Allowable Liétance Actual Lrror per Error for iilo. Error. Kilo. UeSeCe&.GeS. B.Ue10, to Beliell 141299 #0051 -#,0027,: | .0043 B.Mell, to VeS.cor. .7010 @.0044 se COBO 20052 SteJoso & Logan N V.S.cor.St.Joe & 07775 2.0031 0040 .0035 Miche& B.Mel. PT ar a Ss é B.Ho1l, to B.li.13, 1.2247 +.0045 +.0035 00044 ~ NGS ay x DESCLIPTION OF BCH MARKS. ie a: Ae P.B.iiel, seventh brick cast of north wost comer of nd chi gan Ave.,Schocol,on comer of Heh ik and Losane P.B.u.2 Top of the north east corner of bottom step of east entrance to main Blind Schoolrbullding. P.B.L.S, Top of south west corner of concrete foundation of bolow corner window of tho walkor Bbuildingyon corner of Franklin and Washington. P.G.liet, Hole on top on north side of water trough on the north east east corner of Case dnd Franklin. P.B.M.5, outh cast corner of top siep of south enmtcrenco of tho Franklin Ave. School,on corner of Franklin and New York. P.BelieG, On the south west cormor of tho ton of the stepping stone in front of 737 North Pennaylvania. Bebelie7. On the south east comer of the top cf the stepping stone in front of 1°0 South Ponnsylvania. P.B.u.8, Comtor of the top of the North Vest portion of west retaining wall of the Grand Trunk Bridrse over the hed kivor. P.B.1.9, she south east cornor of the top off tho fron pedestal supporting the post wiich supports the South Gast corner of the roof on the cast ond of tho Crand Trunk Dopote /# P.BelelC, On tho north on:t corner of the wost pier of the Grand trum: Re. Bridse ovor tho Grand River,West of Vachinz- tone tore | P.Bellell. Lolt hoad north cast cornor of tho north pier of tho Logan stroet bride over tho Grand Rivere P.5elel2, North wost cornor of tho top step of the north eontrence to the Losan St. School. PeBeliglS, South wost corner of the top stop of west entrance of City Halli. Tne above bench marks can be found,martod P.U.Mel, Peelie2,0106., (Procise Bench Har.) ao shorn abovee. The Valvo stoma of the hydrants wore uses as turning points when available,and are located on the map.eacormponyins this thoals. She above precise bonch marks are also show upon tho map, torothor with the line of the precise level surveys, ed the comhéurs at five feot intorvale,which wore telcon from levolc odtained Gor street intorsesctions obtotned from the ofty ensinoor. this map and tho noto book will be found in the rocket at tho back cf this theaise All photarrenhs wore takon from cuts found in en artical onntho preciso lovel in the jronsaetions of tho fmortean Sooiety of Civil Engitoors. Je. ir- e ‘ * 16 ;.* ” "7 4 ev mae et BSorscc eee « rt seh Fay -- Ag a. . ~~, J ft aaa ie Sew eo @. . a 8 Bur o8 »_ © Pow ‘Wary 2 ° .. wee 4 - @e ee ba e GaP a-ae -e @ ~~, “to t ~- aoe e- A oe tw. e . 1 @ en St ye . o qmevues . - . ae.e om ° 4 °g me +6 . t on ee ee “ : . ve a- e e- _ ‘. ere ey ye AFA Pats iaa? Seas ‘. .ioe o- -dat ee. ’ ae bn to Nm -«! .* “Oe " Py ae pr ees - ft b of tee Ne oD wee ‘ fF nx 6. «wl «: oe ‘ be . 9 . ¥ - 7 “+ 7° 24 vy m 531° ye feet ge Bye 8 ~ < y : Wwe MOL: . La oo ale. - a 7... ja GQ Ox (a ate os a 2 . “ " ° J .% . 1 ev tor meee ; 7 t° 2 “fa ‘ oy el oN om 2 % ww owe we wee. PF a a = *¢ oboe, we . at ™ 9 i . ef. : > ’ 2 oe - . ob: er a Cs 4 “~~ ,.8 \ Cn 3 ate Ces vere ys? onl “ rm a ’ t . - e me ws a els VIG - : ‘wt "1 ‘ S . of uy be _ 9 os e « “a Fo. oO ¢ @ we \ @® . . e . e: .o oo: . .. ee : bee: , ¢ se a a : » 7 steer Ba a “a -~> @ row cab VE RL IT BO OP yee oat ee OT” wt - —< : — - -~ * e . OY -. “y -? ~~ (77> wc a . . eo. ot ’ . e fs . ae @ ° an: | @-- .. I ®— . 3. me, 2 mt. aA ‘ ‘ 1 e f : é ‘ “3 : . 7 oa em OT oe ~ © oO Knee COUP TL fey ; , @ . J stoma & ae Be wal a oa é . -_s- . . .e PPE Zp, er f 1 ee oO es vy tage «. Wiener te Le . eee d x e@ x. -'@t ‘ ? <4 . MAM rg OOD OD Lm my) ae a Dyn , - a ze : 3 NX , 5 yo . 5; eo ° - ea? > .. . A | ¢ ~ ee Hee + , r * . gy ’ of ’ >t %s er oD oe CORR CO So wabine 20,6 6 Beh Tem Te . «. ‘ ‘ on hy ’ a ? es & qe 1 fa oer O. & eye Pe rs - dee , 7. .* , ee: t vw. Coyne ey! pose 4% ~ ONY rT we. 1 oo rN “FITS ” ‘ an ad eee! swage e - wte @ ® me, e a 4 @ ‘ - a 7 ‘ ma. erry "a . 4 - 8 4 - - ete NH Ne) ' wo ¢ . , eo ; the _ i. foe fo. we - T eee 3 _? .) @.- f ee. ®@ 7 5 . a -- a 2 oa sav gen! ee, 7B yr. | 1” wo 6] om ey e- @¢.e ~ -~@. ds @ 4. e .@ o= = “ ek ee ee ee ee fo otros . \ se +e 8 a e »eo GS res" JPEN POE OPE 4 Jeo ’ "6 ? my IO: Line SEP C0 haMy? AND VQGSAR PYLAND ev. : , OL .. ‘ys 2” : L Ayes e LC. , > on - 7 rete Tye ST. nae . Le Rkoadings Per City Above cm Urner shauube Lower Mena yirival Ceyrreated Datur. ‘oa Level Centinetors heters | “aotera root. TOO Le CAL TO OLEAN LER REO ARZ PSH 73 eb Pryce wore er aT CO OCNE TEC OR B48, 441 oh ae 2 OLNEY MST TOT Tee PAGE LEAFED PCB, 147 a4 4) P08 lye] tot? COTE NGA? LEE SOO £61,888 Bet AGF LIT ANTS PEASE FP YFAG 182,802 ARO, PIF Woe Lito td fo 104 oP be OF. eerg Le. are SA. 9n9 Zoi 20 2,72 oTeOt JETT SC, 17R1 SEL 2ORR 15°,025 efAa,6an Co 1D TAl7 ATE LTTTS | OBL 4401 99,4407 186.4618 B65.000 ~ ieee 1 om we + 4 * ? 17487 Belo TACT Uys NE LON A OO OTOL 164,874 881,259 Ca” were fe ANGIE SACS TAP PES PES, BSA LE. TTD Im Tren COTA S Ff L7TC23 154,198 660,781 L1.,1203 Check Lino. soy of BLOG. +l" 1A 1? WHT IV AR TCKhIPF aN lecry . " PAG. Be OD nr ca soo: g ee. Zu, r 7) od ot ~ ne +e ° : -* 2ifPercnco €« ILUnt r 3 3 9 "2 ‘a y > 3 “3 5} | > 2 " ” qe eo’ ee Oe Bes Forward Line. 9,79 11,382 17.74 1.2% HO LATS E, e ' r oun or Peet -11, Icons er Vyose wan pany ocoparny * Mele 7 OLPOIT @ ee @ a ’ te -@ 23 UAT PSorence ~ 1.2K CPA PT OLR IN OF FEES ‘| wy 6 TA or rc #1.90°7%% ‘ “i “as fw. ” ; ee f.: . a”? 1 Te 4 a? 7 8 1 € ra vs e:.¢.. 4 rage = econ i. L1TFZ BNO ALON FB 100 3B 9.44 JO,AP LIAB ICOM S34. aacs 6.00 7.80 8.54% 27180 Irc.eonr CUE T > kd PTD.CriT) Tint Lk OW LOGSN om mW .. @ BACK SIGETS Unrer Fiddle Lower | Centimeters VeS5.0n Hrd.on Lozan near Erland. 11.17 324.01 14,19 T.P.1 on cround,2 O00'froti Sacinay 5,17 A421 7.62 T.P.2 " " 2.750 t ® " 5.76 6,91 8.08 VeSeon Uv. wwe r.bovan & Varner 5.20 B,49 7.72 TeF.5,0n “armor 207!" T.oP Logan. el.th 22.75 23.97 T.F.4, " " & Iersars. o3e70 25,22 26.71 TPB, 2 CO N.U.cf Blind Cchool 1L.el 2.98 4,28 ; @ V.€.0n E;yd.en N.U.cor.Frariz:lin o,59 10,68 11.70 & Pine. Vesa" " on Wein. " " 2.39 3.51 4.60 & Ohestrnut. Veuve” " on N.X.cor. " 2B,OP 3.05 4,8 & Walnut. Veuve" * on M.%.cor. " 4,980 6.15 7,82 & Seymore. Vee" *" onN.W.cor. " 1.,1¢ 2.20 3.89 & Capitol. Veuve” " on N.Y.cor. " & Washington. Check Line. V.5.0on fyd.on N.W.cor. Franklin & Washihgton. V.5.0on Nrd.on M.W.cor. " & Capitol. Veu.on Avd.on N.W.conr. " & Seymore. Ves.0on Hyd.on N.i.cor. " & Walnut. ° V.5.0n Hed.on B.E.cor. " & Chestnut. ¥V.S.on ITyd.on BP. .ocr " & Fine. VeS.0n Hyd.on N.E.c® clind School Building. T.P.4 cor.Varner &; Rogers. T.P.3 on fFround,®00 foot Tast of LOgan. 24,52 20-81 276.83 11.02 12.10 13.12 6.11 7.01 7.88 27.61 28.81 29.98 16.79 17.88 18.90 O.75 11.23 12,72 7.02 6.45 9.78 S0,17 51.41 22.61 1O.&9 11.75 a 52 ' ‘Continued on Page. ) SND FRANILIN AVE. rean Keterg. 1.2990 2e HOBS Cw) e 1, 2080 ©7000 22687985 1.7866 1.1273 LINE: Joo ae teva Weed oA? EL AE eee Vie Vece0t U5 Ors, cya , ape +. ‘orvard Line. . tS; POR STUNTS LIU ,OT Wirg casings | -. rt an boy eA ty Above ae Orarin O Upper Mddle iover voan CFigdnal Cerrouted Tt” ea Level t ar 2 fy we: " ye yc FN ee v° aA na . a we vw @ : ae Ge FON 1. LO OBO PEL aovht . da. ‘ated ak hush wA SD ae o om he ans 9.29 10.05 lle On. 748% ¢ $622 10,65 121.72 1.0516 90.0127 9¢F.01352 198,006 661,593 CQ.G1 C7.60 DOL1l NTR 05,8041 90,P84B LT oRA te 13.71 M47 IFS LAABG OLLL0R8 90,1094 L458 dee ET OE TO. LED ULI LLESG $565702 GSB71IG 165.795 Fro, 504 Weld SL.d7 2.28 3.1446 94.6209 94,56000 leO,eee C47, 449 4.60 6,07 7.85 .6070 06,62:9 96,4141 Levi led oh re 7.7P 9,588 12,97 JOSE 95,9553 95.6547 164.979 Chi. 864 17,02 12660 19405 146200 O5.RRO SbeeOCS Debio eae C5O 27,835 fOC0 09.07 2.8000 62.6689 95,6707 lbs OOF AGL 90 0.42 Tet BOO FOV 8.8500 Co. 4R29 P.GGGg E49, 6a] L387 16,49 15,08 1.94675 82,8545 OF. 008A 151.010) 667.595 24,392 28.61] 56,835 2, EBEG 69.5050 09.0075 15%.009 on 4" anh 1.1% eth eo em TU OGL ES EQ? il. A eae eae ees’ uo t Og f i,¢ " ‘Te. Ts MeL ef Se Uh t a7 SES wet. Je! - bee ev. if saa f . + Le “y Je ju weil ‘ee eq ewe As &, Lose 55 4% ‘ Bedi Mo ge. VLG Ge PE e oe Gb he 26°73 Belle2e t no 6”F sey FY 2B os! tle 10 te a ren L.A 96) opens CP e ghey Ud OS E50. ++ ab 27 Sate :) a ° ~~ - ° my ty. . .. * s a » : . a . te ctw ne 8 a e. ~ @ ~~ *-@a : . @*- 4 "f° rr a a cfs y 4.9C Eg ow 7. eGo ~ Den. PHOCT Ss Livi. LINE ON LOwAs o1. Check Line. Upper V.S. on cor. of Logan & WALLET. 17.04 T.FP.e, 2% 5CO feet North of Saginaw ; cre Lopen. 2.35 T.P.1, 2 0CO fzet North of Saginaw OY eo gern. C,FA Veeck Hydrant on Lozan St. near Py Loree L1.9® Buta i: eluted Le a Bde. wi: Metae od ew e Wire Roadines. bocce =6LLerwor Centinevers. 14.12 268,20 27.68 2e,f9 12.08 e ann . Meteors. 1.4176 0 TEO40 1, 0880 20, F818 Lvi SMT ee wee G8 ST a pase? atEES oy AUTH yes GR oe OY “Sik woud. BIA Dd wm de wed -§¢ @. me @ 5 eh oe eee tL kee ® nm-ide’ & woe J y ante . aad é GOR .Ok GAGHINGTON AVite Choc: Line. yoRe S! GETS ML WATE i SS Uppor rq aate o Lowen voan (ttGehal vorreoted “Datum cen Levol Gentirotera Veters Heters b2Obe raotif €.67 7,61 efO45 OC=L,60° % OO LEC CF 4,01 G10 7.27 .cimt ce.cova 9 ce, 0117 I.E USE P4979 LSE2 GEL TEC | 97445 lis dig TS Porvaym? Loans. Check Line bur of Bo ro . YAS As: of One Cf five a 70,6034 ep Fack 4 12.0143 " © Fore " 11,.°873 birforenas @ O.500¢ LisvVororce + 69 6945 en js om ‘ q <> a t ' & ® . AOS o~ teal Fo f 28 @ Se, ie ‘+8 7 0 6 wetel, > ‘ Vegere O72 “ a eo, Veuve ON Vee O01) Vootioe Liv Nap. r tyd.on 1." .cor.Prarmclin . ~ Nw weet s -an- “a awehat on frsn i:lin asro.en “ase ard t ae nee a on re * “ain, IS Soot oh an F on Pree “Un UU a Po. 3% 1958 a . ye ar? -- "me chee 2 YC 20M Nedecor.¥2 Coo tat rue iyd.on Neil. oor Franklin ¢: i, on q° ‘ ‘ rarirlin &@ sere l,O0n ah 0oreof Krenklin &: Vew- OY it .? c %’ vere ie @ ue Peiiei. On water troukn on cer Cese ¢ ‘ofler Chon Neen tn T.5.on Uyd. 1ce fcot Vest Of Devot vw It. west of Lovot . ‘he Lea FQ LCC aye ™ : C23 . ‘ "0 anv Je uyd.in front of Foller chor my bye Yee ~ e ‘mm oh pba gay. ve .»-€, 016 in oc.e of vator trouch a Lu Lins 7. wh gn Pang vet bZictre Pane ‘st ta LIND Wr + ve: rm i:imo. er ° wel wie 14 40007 LU. 4 Check Line. ifrpdty ave, iyd.in front of ° om “" 7 ~ 7 9 ? a . ee ,?} ‘ ~ w& : oo d.- on’ ws @ a a 7» . ad tC . ‘ tani Sf. haewe ‘oP ecygOn Hen e0Or. branilin Ave.% VenweOn ityd.on iS os Y ewe wydeon tse eGOr’ tel el,On cranklin, 150 M 1 eVeon rranciin " 1 Pel, UslieS, top or ee GOre oF Gonsrets + gw, Cog eS me 4 8 ee -_ * we te 5.cor.sranilin & oF yy oe “re a * » Yrankiin & 4 ew le ¥ wr TOR piece OL “seo Le re | r- . . on hirist bail of Owides oyvor ev dy: 7h r®,- . * a7 » ~#)., ‘ @opro rt eft wer sce - . | te hat ~ ~ of the valkor uldn. soet vast of 70. 7h Poet Enact ATOR 7 - 4 po = te. 8 wird weed a LUGE 404 i+ e EC: 11.11 J@ © S& 1d.f8511,€ 4S ~ @ o + owe uw th gi é 9.09 e- or Fe 1 ot" -_ «& « ¢ , e e 5 . oo! 6-GHi weg “CetTr A 7” 9. ‘] era EO 4.649 ed : Ligh? erat Bead 1 e@ e400 L,4185 Weik: 1,3007 Ge '74 FOE LU,6e4% C, ~ Ww For 40 OF a a= ~ “a: pets eRe 4,15 ewe 25 Fel. eCO0N “oF aan & Mowe 1,708 c. Cie kt iF Li i hil of. 1’ Vy e Lye Uitihe ae alt? bs AY.. e iD Beiiete Torward J.ine. Fore &irt:ts iol, “AD whe fogainss : - .3r Uity Above Upper Middle Lower tean Crésinal Corrected saturn ~ea Level 4 Tr , a Aan: & 44 ee s Cantinctora ielLors Patoen * G9,S67H FO.b875 WAU.879 209.0682 W226 1E,64 14,905 1.5003 BCL41LA &i 4114 119,904 906.489 4,02 BAL C.66 SESS FOS ESLECIS Toacoe | fo. ca g a o ” " e a 7 e "” .. e VC: TE o 1 e att @ £29 CBSS Veo . é. re Ge we 6.043 Beit 4,C@ <.i7 4056 OS. eleo O%,8los 16.cOn | BaL ES: 5.99 4.9% 6,02 64075 94.0078 94,0069 ITE.FED 845.173 24.52 7.75 26005 5.5715 81.035 OLeS72 1.455 Lg.ec1 ¥.B.S ated 2.06007 92.4066 (96.4065) M3 EG9.021 VAS. 3 eft 4SeOD FLD SAGGC PRE ROR 99,8405 Lt4 789 841.374 wen 4.72 UOC 47790 CS,40573 83,481R Tse Feo 845.447 W.OF VE W.ce Lene SS.1Gte 93.1614 1ler.e1e G42, 008 Chock Lino Chesk Line. oe ‘>? ag v oe cs e . 7 ¢ 3. 1859 4, 1774 L272. 63s 490 5 od a » es ” fee” “fs “ 7. a2 toe Ge G74 etic 945,45 33 O35, 47.10 Porsn~d Line. 10,00 11122441.2.45 Llvto ©2,.68620 92,8511 Cum oF Pb. ¢)h. ocar e FO. eel 15.02 1t.14 lh.02 1.41-d oleae OF 2a PSfforenco + ..771G4 Fo FMR OTC pA) eae men ore oe 2.74 GGG Et 240 OP COE UL CGP 2 Gieci tine. Sur of fo lel Ozer VL.EF Ce Wel leoece cuvnuee OS.cnc2 oO” BM Ec. ©2147 — NO Sa s ae. oy oo over oa awk OE as we: . n> 1? PZ FAK Es Fy he EB YS “1 mye we Ee bs 4 @ cela bie a PA Cf tw @ eb ' ./ Ob OL, we “ : PINOT’. na An esc? . c wo ts toutes Yee ~ °¢ “4. «N (=a 4. oo opr. @ a a oe EI Soe 6. @ ke Xian & eS « Msde te e: Oe + et ee = ote “y \ on 7 ¢ a) TM wr ws Ooty Ee ¢ roo 7 CS e 16.C8 Mv, - 4 tos et « ae we ate wet owe tt we A ute % a -oteore, mr more SPS Te, Py I 345 qo @! 4. eo om, > COL FAS Ste 3.48 4.42 BT. (, Aa Lo ) t-9 a Eo RI SE7S5 i ¢ ro ON id PCY CY abut aols Jaddsa: Lege ekelst: 15 ‘ OWS. 2 O12 2 6t pCOD « Cranks in Lets a 9 on ‘ Ls O 4 mt: c {3 rr @ in ~: ris SePoelsor srentiitn Ave.comer cf rel’ S,on Pranic in AVG, COLM.er cL whip. et: Veuve On EyG.0n Feeds e COP e os PHM & at . Th uitte Sel’. Z,0n Franklin Ave.corner ov LavmreLlvenin. ¥eLeOn Svd.on .i.cor.rrenkjin & cw ~2Gre ave. eiie5,0On stot of south entrence cf I: Vinture 12 400 VCrOGd ° V 0% eOM Lyd .on. esceOo Pel Paritain os How Xorke 2ePe4,0m Pomieytvausa SSC fect wOUL OF .Tacciln Ave. Veooon Lydon &.L.oc8. Poonyevania cc LOFTS « Veb.on : ard ON roe Sore! Ob maya Yoria Gs weale Ae wa. 2 bra: ® era UGiri sud.) B fae «3 ~ ee @ia bel? Ciigsk G4rie. Vebeon Hyd. on tog 00B AOL Sylvania “Ye e- . ~ 26 Cd aodban, « Coot ‘ VeoeOn iivgd. On a 5 0x7 ele i «FP -ON Domes. mga ho 2st ‘ - FB Fa as 2 wren sod de ish & bE ete e VeS.0n ly ae Y4 By! 000, el Sutindin 2 ty «) S 2 a PE 4 ec eP eo l,0on ocr. bresucdin aod bf ‘4 ve) - Iho ote VebeOmn Lyd. Yer ores tank nics ~te TePet, OM Framskin Avo. Nee QGcTeEr Ox sloaaard fre, BeveG, On be 000, Srarelin Aveec. GAsa. ~ we? . Y mae ween se a oe OW at QO: oy Uvania -- : yo Ary A fsie 6p OPT ETP oe @ 2 ne . ¢ 6 8 AS 126975 Je foe es e d wa “ aw) TOO 7. TRIO . CE ?O ° wise 4 e a) OG a Blas Bahia Bellet. Yeu, OF DIL RTCA AV boa Line. .. - “he ont ) ‘ pa ' “Tt ae 6 tt rs bed dh 14-06 ob be wa) on J «ho J : vdeo 2 cba.” Grboriat ccoreetsa fhe 0 Vem City Uppos wLudle Lower 23a Level at, MS tluoters .Ctere Saters ood. fm pea oO. ytie EC FO" VFB LIS €,c1 S98 ere EE Ee is yh OA RA A LTE TOO Ue le. re fos etd fae Fd COT, FEST Pte Aas Sea's 7 Oc (071 G8 66 td GReEAWe ere lgto FAL Be Co eit 2 my elim Cisse S71 C28 EIR TY ANS TN ISS eit 4c] Blo 2h On O54, Ge Wye SLSs KF VMCeR JRE SIS 5516 )94,6095 OG OFOC RIPEN PEP LORD (. Tol 7.71 8.09 (.77023)59.460n VA AALS PAN OCR 173 5A95 l. S306 SU.GASR O7,ARAr ARO, One LEAST AS vr ~~ ‘ ae “~ “oe ” ce cy tf ome os 4 a 4 4 mA. 78 14,25; wht mot of we rey. be BE LOR LEST Cel gQ OSG ela Cd at AT TAT LG a ‘ roe ‘ Fever Og? ™ 377 ~~ a : 1 mM ¢ 7 4anN 4e7t ee ~ @>s feid eof vans ©7 a7 bt O75: , 4 Fs 0 9 ~- 17 A477 » | Cinosck Line 67.3255 67 .on8 11.60 weTl L4.c6 1.0550 SC, 4216 OR ETN comrard wat “UY Or wa FLO eG F2 ws ewe ail Ge7 240P0 B7L9796 OF SFA 7 " " i" e. C,821C a co + 4.1042 wecl eS Le’ eid 92,4570 OC eG w OCL Te L 70 Wood 1Q.18) 320,63 1.9280 92.6556 PF CCE sur Of Fo. 8. 1465 " a De ne A, InO0 eP, ‘ee - . a a ° re “, ji ¢ Tis at ey $i 2 oF oO OTe 2 ob uv de il welts OF OL49 em EEO iPrfercce wot, LE65 well B72 BES CLF 7SO 24.4973 G4. 27 21%s yet yaan 17.097 wees 42°82 Ti BIO SS, 1GCES 93,1642 @0.058] HM. Error. z vr: qc? Phi sud he'd os evr yt word We B So 7 YAS "Y ¢ Lvesiigm é: Moet «43 —_ “~e mc s as hee Me rye. éhi ? oe *. J =, ba td ~ + T.P.l.on Pennsyivani a. euc Peet - & “Kiet an, -f a ee iy T A a VeieOn HYG. Fe 29M. oNMGTLvan Aart, V.8.0n E Tt se foasa ee n ee Se w 4 Ca, ye ft bei. 6,0n webs COP. ater ph One bi Aen ns > oe 7 aba sy] ae or a” ctreny Veoeon tiyé..or we. eCNYe ODN 6% vactiny. T.P.d,on $f “enna ivania ceract Orolinra of. Y. B.épotiyd. on &.i.cor.of Penn.% . 0% Byer tera ¥ on: -o Sw ‘. 4. ~ Wla & del .2,0n Per: Thee ~ . @ ete ‘lL .Pet,on Ponneylvania.l O Let wemth af Laveen Weve Vebeon Eyd.or i...Gcre Fann.d q? ‘oo daw & uyd.on HeweQOPe Perm: ed \ "21106 Lyd.on 6.1 .cor. ToPaQre Hyd.on tiei.cor. Pann. & Vhoniom belle7,ONn Set.ClP.envopping Treen pw Ne VG hae © 7% Ve.eOn VebeOn Penn. & Veieon oe vheck Line 7 . SIT TS. TMA FT oft rine Soe: OI Cheak wit BeE7,on atostins onc in Yront bP ws ey MT ee af aan ee 8. V i tied, fn i ree eg de a ewe On k NT? ese EDs cs re " ~ *® be ind 4 . re U..Toparrs: Ga Redo vs 4he J Udie tee . ter. B.li.of Cal Urvoy Tabet VeS.of Pilie «. e! ro. ~ livd.on ve pce lonn. 2 6 ~ 9° 42 Vine. ityd.on H a ta: TeP.1,0n Pennsyly:- hq: Wa. nee we, Veu.0f VeS.0f . 2uaTr elf slate ‘s LEN Se o. ft ¥ tm se at Bort & Cae ° qy in woe «An aaf oe t~t oN ® wre fe ge fe t @ “@ © ze a. -« @ rary au t> =, wh JS “6 a type I. { et. hh hKezdgin-s ne its “OULSLrs 10 PU, A4 oe” ay ae ace ORO? ay i lf, SOLE] a: Cys @ 13 1] e my y ea ts ‘’ an wmo7: own ad. te @ ~ fe Gel oO ory J “a7, asie oN; .& =5 ¥ mm t an °F » oberg l. AQF pe PLO nd oe L700 Qa stay? 1. ear yr? " be one? a © « ¢ C700 o~ AOR 7 8 ny . you .. + rT ot wae “ANP - «Ry > _° Li jes. Bocca Vig aioe ere al “ - “" 9 Oe wdta: .» @ e@.e Bogs Boul Te, a , ° : * wey ad o ” “2 ro head d Oe 3 ‘ "yes | ee . t. eI +. ; re ro 3 Oy Above oye . 4 % we, ‘St gw. we arb ew ee ee NE ‘4 o. . . - Upper oiscbe Lover Jean hee “ca Lovel vVentimea.iel's felers Rete s bercbe £9,477 F€F6,082 Bef) FAFO OBB TO MAGA COLA AD OUP TOLL 805.4276 LI.7L leeds VEL) CL Saeed rsa TON PEST OTR SBT 976,456 BOP VES Leveg( lees) et cer] s2.ecia LaI7.S°8 BE4, E13 C.0P S48 8.07 8133 109.8122 190,4135 AO, 25A 656.841 9617 Gece 8 HR CL PB7TH)IOLT TSR VND SRO Tee tos one nd we. As ah Ll4.fl& 1.2455 OLAS 116149) «1h2,%19) «BBO.904 Gen Te Ge. Bols (orev $102 e805 192.0466 1e7,29°8 674.613 a 1c.” 28,272 VOLES TAO OL, Foe We1.7079 142,015 870.809 eek ON BEBO B.4806 WOLTER ANCL DTSIA Lie 74 ERE, A544 TO FOP CGH7R VEO PRIM YOO FOS YALL BA7.7E% SeBS Fe 86RD FESS UOWGTTB 100.9655 161.858 687,619 Feu Cel 2eOD Ch GEE TOOLOID? LEO ares Vey“ FS5e.E17 1 Teil Oe Tu Se TO TOO PGB LOO eS Cl. FET. 767 Cob peg . or. Crock Linc, yo S “y “, * em i 3 rt 7 o -- on™ e “oy hemyerd Lane 6,60 CCl Dee FTO TEN eGo ACO ore hurr ef Peles edt 26 2 sn - % Cede) «959050 Ee LE SOUT ERT MOP OED GOA LitPorcned 4+ 0 BAG CBO N95 tee E91 YOR cise gem Lec INA £e0erd OS GECH Payers os 2O.ch 11.70 15,00 Le100% Lae, bers yaa pets 7.Ce 503?) LBS (Been jyLOPRLASSTE Tears oy fr 4 t; sewer es yarn orc rc’ 1.92 —'e /U 6.4% ected i. we EO 1° Mee EOD yy sag r oo. 0 eee “ Et * wT .ysrve-% 8 ent™ ay Jpn F PRE CT a ae ave ‘ sal geaee DY Oy ime P: so. Tye ow \ A 1 - JN +t es... 20 @ cr: ' . ne i A os « Nag irk ~— od - . “7 WLP He lsicgs Wormer Toe heyegh ay ‘. : €. me Volos Lore DOLGi's , en ‘twee e »* ., aC 3 Veooon ayd.on ec .cer.Penn. + cece tlt - es em Uso «. Tv ~ 43 ~ “. wt v . Vee on. ake ONT) wets e COM OTWM © Sy, . “oy . e mr fy Flee ws ™~ é . e _ ° walk Gg ¥FeBeorn yan. tes CorePorm, & . 2, S ow . > . - em 4 7% OF 7 lee) 80% Wewt @-- ze: ae ’ Dele ON Levecoresternines Froary mo a w —’ eet OMe £eoF.C,on Vernaviveariiiajit....cas. of lve rec re ven a - ~y°? . r. 7 ~ - ¢ [os 1.40 we Ue mooie) eas F . Ve2e200 Ponnsilvaisie, and Porth Pect ve a Sl weet tt). @ mle ww om te Ath ed . ’ e Jul re) Upner i:-ladio ey Lg ty ’ wey) - - ak wl a wd a 15,15 By ~- @e . vy A;* i ® Ok. LINE POTVERN V,8,08 CHELTDAN AND BLU, Ghee POkus STGHTS CET Bau LV K 1+ 77 the fa LVF “0 ”y YP re ee wi @:.é ate ‘a oe Ooty wy. ge G et 2 Dg) £ i.irc.e ! 8 n “ ~~ P, r* N a, -z~ ve a Gur of bors " tT Lack Lirforsnce crrvor, ¢ 7. Vv ~ yao" \* a J T' rey, "a ‘ ~* 4 ar bs, Oey fv CY ENO qy)r roo sgt ft a . op LF eY “t8 wl OOS PRO ™ o* . > €& Dee 0, oy c am Wie 3t < “a ’ v«¢ 8 “ner . i ero c ~ + -? sbove raf Sea Level Pan & oe “" whe ‘Me, - soos ae Oye tte eh Mee - as tS ye nw ° vos re . ~yr t° f 4 ! so. TIN e ‘2 r er rege, VAT Vea obese WA wy. ta oe . . 6 a 46 de ee &ear _ ~ ‘ , 3 ’ a @ os voor fy . o o. wee Ow a be . e 7 A OUP . *. woe aa a a 7 ° “to ¥ 7” “ "ft sr» rd an, ..- fo a “ad ’ ta, ‘we bh Ne . ¢ - tow ° 4 "ey é yes tee . : - a A) 4 Cv ee a tes .¢ cg ‘e ae a TY 4 . ‘ hh pote r* sao ~~ \: . : ow - < ~- ne BelieDron wterrin, be aC own Te. 7 1s le. 47 L7Ien a - © ey 1 e > 5 yw . . a oo | S ." 7 a 2 » -”- wen eth Fee ell @ts . eT s Peu, .iu : ' oar - e- yee 7N fe re rr ° “4 e mr, a em em re fC, 4 3 ‘ a a) ‘ ran os "4 «3 “~ “oy ' - . s~Pos ~ 8 Moe e: e lw . ee + ’ + . 3 e “~* a | ne . Ve _ we Foup VAS ; V ere 7, ow We 6 » Cores -« < . te “4g r . ”~ oo oa _™! - ae 7? Vas ~ 9 ‘ ‘ ': ‘93 . ‘ we fo ODS 2 v be ’@ sae ee” . a we o a a> ~ = la a 4 me ~-? , a eey om \ ®or.@ Gl . —_ ® @ Nl Qa’. ’ ' . 1 v sy o ¢ ent r yer , nn “et Sue Ke sey cn “ ar) we ‘- &. @lie eo° tet ¢- aa 7 . - . . ° . ray yy & . 2 , ? * Tv, Sot Nx ’ , eae om Oa @ we Gr: m= S‘he ae:, de oo oe 8 ‘, a f t - : ry ' ~ , ve : re ey < - . Jf yA ’ Pia } é "sy en ao 7 ~~ "2 RNs wrt boa y a a--ealtiocr.- s e ‘tc. VWs, <2 7 *@ so. Viera °° “ee £ . “ 2 tr ~ ‘ . au fs ° 5. "YN YO 8 é owe Gr} dedbad beten GEE Hw * ne CC; ¥ ~ @ .° ~~ age s Peary eve emmy 7 11 , at r ™. "Of. oe Wis! he we ah os @ A we tt - @ 1: e.- aN ele cyOt Soca dy peasy oe Peat OL of 28am? ? too 4° 0 Veoeon Pyu.on tonmievivecta in fions or Cc woe & « ow. we eo Aa - 2 r . ‘Saw Cy ~ ‘ 6} THA >? . _o™ ’ he . “) e °y oo .% 5 \. wr . i > - ws A ot Sai | 7 ry ees y enwvrzOKe 4. Gliese : ste ee 7 ow -aes ©. : ra o Coe tii . Ts Aap rom. 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Meters 1. 1::69 “70% 9000 J.2673 3.6320 1.4790 mort ee ' ‘ v. _* Prac fs ea Be. VG . a9 ~ a ; - “~ en. toy ek e 5 hee! TIAA or OM wd See PC: rw. gen owe at @. Wo .. “ay City i r: as wood. Ci40! an 7 } Nes. ot) T 7 TYWAGIA. ay ow a aed + ‘eee ~Y, . ones te ' ©@ ™~ A eu @ ] t~ \ de ne oath. DOVE “on, Level . te COT TET wy FGA BOR C47,761 436 TED Line. wh Cf veo .elT, t % B.Ge ewe pete oO eres BRANT Oe AE = 70914 one > an 719A g »/ @ Liffersnes + 7.000 -o wr 4 4 wt tiw Case >, vrey ered 0019 M.urror. °° T8gN me ~ eo wre ~a sere 3 3% 7° ow - PH Y . ¢-: ny . ,* get F Fuecl S2. juiov spWattk oa Das My. Micbae hae Wau ls » BAN Low met ls bah : * Oe tt. oh Lod. Sar ae ee 1. —-— ay: ¢ oe os orgs jean to. Ge ‘ay ° 7 7 + at dw ne ene yy> va ot a - a a ‘ ta? 8 tee - . oy . 9” ; } . stor tps , we, ee Fann : ae etca 4, o-. .. - . rasth le . 3 - . . XN . 4 . ~ LOL Lteors roy a wee, 7 pee 2. lay: oy VeueOn ; RKO dh VGaentse LIL EPCs QL . . - . 90 8 rt? a ag ao Oe seo ew ase ews 1. ‘ya! 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Ce, ar - ee . °° ® . eo nw oe - A ‘le ‘ ls e LOT irs - * 5 - Teme pet 38 a roe. * 7b: i* ecg tat ae) « Be 1.& allo YO LOBSMa wea. “eet hs ww @ wt. tla wie @acy GE rey “4 * A] Tr 73% «34 > aye " ¢ ea me ~ das ore 82D? o * vl ~ ref ig : i! en eeQe ST rgee ee Fe ony Pot TY. be 6 wl a POD é 7 « Ve . “9 de a wach, a my oT «> °- fo ae Paw key ° £.: mee hePoce rive dtaa | Ve: Tt tg Mh, rn are: TF .1. LOGGO TF. TO ers ve eon 2 OMRL YL void ab tharcrt or e 4 tt @ ) re « BETWEEN VALVE PTO’ OM Ioeun AnD OFT Ubu OF & Pema ewie Eke f. @ive nents Rpt ad Gacceae 7 OM Caty Absve aver Paidet2 poner boon . it". SoavbesBel a % mae! * Lhe l . . aris ews tes roo: : 1 . » oe . . " " q : Z 3 \ wv. AM ee . s 8d - wet Sw he - . 7 : - S ad @ wo epee Nae ee 7 Sy Mey yo et 6d OE Ae yar an OR st af, wot 3 ‘ e { a , 7 e-: a ‘ a Xe Py c i s a . ‘ \- +f } . 7 nn gh ‘4 ‘s & e izRA MA 7 ‘ 1: eer oP Coty ate Ct NO Wes OR ee -a:? ’ 7 . : Be. (.! oo. oa fo ’ yy Hw tae Te fe eo awk. r,s ‘ . 1 .* \ - 7 - “ ’ > mots s < ‘- . : c;: ‘ es vy id - “a 7. 9 r rf ann C6 oT .? I. eo me e sf Boye eB a .- . . _ 8 - . - . wee e eof J. * of ‘ ' ho @ en” 2.4 8D han Cy eas) Bae Se BEAR JAP TCR pag say Blea Pa a es TAVIS TICLES COLL SRB ea SG] LTD ROA OCR LOA 7d e New ts Cc" i e a- ~ a r= ¢ é o> c Us a p«4 ov “y 7.12 De ld 4.62 ( 5) CO.941i1 OO COORD TES RIS PES CW Lora Chock Ling. “Lh \ ¢ “% GO.%9 521 VE yey cm q 2 e N * e ae a] re s te e - we “ o ~~ “4 » 4 ~ nes ~~ “% > 2 . oe WoT Vavweard Line Sur ee B® OE eI AL BITE roam “Ny gn aL, se oe es met EF ES Hes ‘¢ % 7 “. Acree AS. ~~ ths te! be i& Selrod tle @ Vis Cue lin’. 7 bs. Si, @ 8 7 eh "at yPcpenca =» PYOOs] -~ fie ; ‘ anon nn sfie? geoy mmf Reet se “set ts a $'3 ( ete. un f ko e! te ‘ : !e FA? ™ . t. , 4 Chea’ Potnal . ~ s : £ corte, CEO. F5O] o Ree ; : hoe Tel reel ve kw es GEG CO eG oan “et 7 “ws er Peed a 41 @tve ® 90 if oop. » oP BO GO VEAL SOS RPPorcned # SF F949 a) @ NI ? r eo <2 < is. e t- a On 7, 0° ay . ~t 4 ep. aoe arae cA G re * “ ¢ _ 28 GO, , C. f os LS Teas 7 iit: to ee 7: fas 4 “4a 247 c oe, se it 3) +. PAAG - 4 ty ~ , 2 A ~. ©. NE, o. ~- Ae ‘oe ef ze . foot 2s ed wht weda’ & btn, 2 . 8 Sty a ff qi? ne Pror. ry ect ul, ww ae Bene lD,on T.P.1, 200 7 u Bei e9, tor é ) tek e hey 2. cCOPrt.east t 7 MT 7” eo tos t aver xy of av ot ied ~ r ¢ Pua Drei bf dace Veal holy anv Ailss At 1G * lrorvard Line. DACTD tu Liao Gelelielie vy 1° Oe ws “Jeanna Vire loa q°*fcac baw ts Ad ~- Tetra ee ws tae alinis Urror Liddle Lower Contizneters GSeveCccr.of Tiocr cf Bric os over Grand River 15,00 14,2° Pane cet c28t or Vashtinston aveecO PFt.i.of tracivs. 4.20 5.47 of Lron pedostal,O...cor. of i...post of Lon.Loof. os zenot,coutn of tracrse | 6,49 7.G2 aeP.3, 200 feet east cf Grand &t. sorth or tracks. 6, a6 17.62 17.90 16,29 15, 2) 15.78 Cerief,conter of for of U.N.nore tion of retainin:: wall of prid:-o over i:od Codar Choc: Line. 22.69 15.49 724 9645 10. rk ~~ ~~ ® 3 Cc 14 00 ~ oters OC e C7 BO 90,£208 00 .C77E 0 .FILB 26.85 1.4055 2C,0ccn sa ecard 007 1.4195 91,0875 o1.eccs 19.75 1.64556 91,2701 91,2095 1.47 206 LEIS 1.21°0 of £50 QV arr sae 91.6771 0 a ® 7E°4 91.4475 AY, 2E7S3 91,8759 I267475 Per City ABove Datum. ve2 Level teete ROTOR €74,.908 C74.070 CE OO 19,f08 €25,8°5 ee yoa as Pl Ad 192.800 c7Te. rl WOA.9041 ES7, 8°56 Wd.47R F41,045 LOO 29 Check Lino. 62.7494 92 7ETE 2O.f0 1.8575 81.6771 cl,evs4 17.62 14,01 17,62 17.41 17,42 16,02 16,°6 L.G55° 08113 1 B7=50 e! 1.6173 L.625¢ 1.4956 iC. adr ae oo 8 Boe 91,2027 A1.465097 0 8l.e7e 01,0897 99 2°09 CTT OL oO ECOG 1.2809 91.4°°7 91.2758 SL C875 OO .€981 OC 7st OO ENE, Forward Lino our of Beh. +r. 074” * eF.S. “1°, 00.° Difference + Levis Check Line. oun of ; a‘ eu ee IAS | r90y a Be el Diftorence - Leann 41,2714 owlee BE 5 40 C951 Tlirror. TU i Pi OIU. LuV. Lb 2. uavLY C8 LOGAN ove CCU. 17 we le. Tt ve . « ‘v ected” Vee COP, LO: She) apo Y _— Veen bee GOD ei. CaM VernweON Ne 1eC0er e200 7071 ¢ enel®, on Shon of a" Sel ,l botiween Lbllfars i? i) “~ ont lorvward Lino. ~ ew a 5 oO bor ak Nae a td wD tre ‘Loadin “8 Urror rdadle Lowe ute JOG6 ge 15 -2in ite ed villians. ‘om Ob. cahmool & Isaac 3076 ~e?.2,on cor. .osan & Isaac 0ES 2ePery Bout of ‘nDeliate u “ # @.* wat) 9 ar @ <. Geiell,on Lovan Ot.bricce. Deirs li. } ole 4 e fF ry ; 2 wme 6 1 a sq. ela. VeueOn eile COL. Loran G.ceon Nex. cor. Loran ¥e eon Newecor.Losan Choc’ Line. C} 190k Lino e ? Certincters 14,058 mn AP We @ * ‘ e O1.04 o* a” ered eae ld 1 eo RN weil ; oan. otere. ecllD 7 ory we Ceae 0 $3056 ent1ls eLle0 eocag mt Dew ¢ 972 r. CONE ty 0 «fh te Cars ec len? oI OG 1”. yO “a ? A pod ws ce LI? iu Brassil isg:: ell GW LOGAT wi ekatiad. te SD Veen! oy Forward Line. fas ob Ou. i. Tey rene SIGHS Vaal FATIONS wire Leadinide Per City Uprer Tiddlo Lower ‘can. Oricinal Corrected = iatum. rontineters 2055 %2.Cs SeCS 45040 101.1219 1¢1,21589 121.970 et 1.¢7 2.28 (.1420) 204.0985 168.0710 171,906 ATS &.1C 7.023 (61535) 195.8°92 192.6017 179,067 letcors 1090.1: ;oters ER 100.1565 Above ~O2 Lovol oeete re, ces Ceo orn E05, 0°88 702.101 £78.66 9. C.7) V1,’ 1.0729 107,1415 C5. 14D 61498. CHS FFE, LSO OF Co HOTS £9,090 8.0859 CO.71L51 %&wo.71e°l 2°90.cC8 ©77.1°1 CIS ove. 20S 800.53 27,6517) O70 1A TOL 147 S897 2 Oae0C FO,04 29,07 29005 94,9941 94,081 141.046 asi.en Soe )6 684,682) «85,67 2,460° Oe 0°. 7A78 Pe FGAD Chea Lino. Formvara Line. 1,:.1 sedi hoe elle 94, TOS 94 .0°S7 wln of YP eve el 7 4 “ ® i eve Foe ‘. x 2,038 Led igi og el CL 27 CEES 97.€CC°S D’fforcnes e 7,7 ets eon Bett gt FO 100.6175 1° ,7184) Ferwsrd Chec': Lins. HEH 6,68 Tew eCi€S WA C4895 IWC CAPS Cum of £.5.4+17°,.:°41° e # « ewee Fico] 4.79 Gelt 7,42 (.61¢0)(1cs.c°15 102,.¢0>% Difference + 7.7764 ewe 1.4] ineascd eltCG 1O4.07125 104.0727 wo? $7 TOA SN. «68SEC UTI Z.Cr7ee tle ees oti. isk7s af CCOG4 li Lrvor. 1 ] "3 wou © oan 11,04 1 ers os e a a Ce, Peocel “ne en agen whl g wat ae aor ce 15.6.7 «sm ef os - @ | it .7l tc Q or rs 7ebO 1” le mi ~, om, Fig ts ey ¢ ce OD cry A =. @ °%. 11.71 1 ow SORE 9 CELE Checi: 7 PANG 1.2410 elo oe T2OM 1.6003 of 1S 1.1690 Qo OeR ar @ tee” 2 om qo« ele LO2.1LE 47 LOC .604) rvora Linc. cuors RN rN res wok mes . ¢4o NNO ar rery we Nt wh. tw a Len. lera om ru V er WO OSS eet @ heel te ORO Ce Ct Wo .Co7%4 102.1040 Ls. 19 les e571 We. pees vege ROT f pe ew ob o. E,! ele TT TCT CA TONS bade Ve ert canes Carracted ftw Por City Above Latium Sea Lev ioet. PO2.°85 RE, 2FF WYPcey &67 64 PAO8D = EPALES. Beb2° BIE,CTT 0.9140 «Bar ace Boe EF BBA OT- U7 66! F64,47 135.576 862,171 LEP, 25n ERA YP or.serd Line ian of necpeaee 3 et 3 De S e +f, Cirference wa, i: Chock Line. Cun of B.o5S,369, 4! " * Foie al? ag Lifference +, 3 ow. L077 40,1276 =, er .00sS i oI” a . ed ' ; Tp Ny ree EE at ook Poke ae tea ae ro a = Ly x ae fat ow Sweets e fre . yn: ~ J Saye ‘ segs " < = cr oo bit «@ s re -“ t ~~ , e I.. Nat. eae a) “fe ~ ¢ 20S, -~ oS y:° . woe de ~ . e ) + ore me; - wm ott. + . “¢ teem! “ Tee ‘ os tGal13 1.F 1 oo emt o « , & / q ‘ 4 4 ’ «yy a J. ° oye Ne & “. ~ - ae te Aw tr D : . . ‘ Tt. 1s. ‘. 5 . 37. f°. eo + ba | ett oe e:-2e0O” Nee COM el, OF xr ata ted. a ee 1l.: - we jet. Ll. 2: . o- st ee M8 $7 pate eneOn Te. cor, °@ V4] leesis i Cs e Ww 9 . , oe . ", . ° ¢ r 8 » of ‘ . , e. ony Corte ci ¥ astY fe oe wie Ce 7 TS “7 & v _ Thode 3 , *° re tes ’ eres sym s . . vee e- 00M GOP. ov Leven & ..t.bavatco 1,” el. re ye ee y ) (, 07 Coy one nf e @ -9 . Se we? .O7 te . 8 4 2 oe”. e oe es e: .. . . , . » J. . ~ ays: rt [7 se . evo mr ° -. ~r ‘ en Lire . \ 7“, N ra ‘ wey ‘ ‘ e we e oy | e. e Ree, d vs wy iu the . we ii A} my ivatd CG e es. ' f @ f wy $ “@. ‘ e / a, . z - - . ~ e . -~ oN “4 et ; Nu ~ . ems s. .®* 4 y,sosr yw 7 1 ‘ s °. $ £ “ . my : ery ewe. Vet eve ei Cm 0 desk awe are’ '- Ae e Yosef he «+. . tT . my ms way . wy ° s ; “ ¢ ‘ * v e007) Yo ead e- Ay tk? _ aGiorts iuyt . »-°. fe‘ mo: mm meee Y. ® fe e@ LON SHbsR To Ve. once r s i, Por { »” bead . ° cae ° , 8 a tee vector ftton : eo one OV: @rwewod oa Tle 7. ‘2 e a 1 ‘@' ° e T: , es vl, at Zan ~ 4 ¢* rt. ry ¢* cr 2. edgar gs eve GOMe.. 202.21 The LS @. u@ ml 14 l. ee “| » A s- oe a a cl ‘ t* rae 1 15 rN ep l er - 2 (+4 @ Li @:o iw a, am) ] el e. Lets . yO Lee rs rN NX “If f oN et ; cr A os Qe fs @'~6@ i ei aL wee LAOO 2 Yok e. «} (ft ef YC. PEN st 2 ‘ ia er ra > ap an rc ?. ate mt ° eseCOP,sias su a Oe defies A a, . @-: 1 eo Vee, ene COX e Lt eo OUT Orc. ane tT Hae,. 4 Fede NO downs. e J.C Ty ete dca Mabe sod tats Pa "kan 5 V Al. 8 , ,aPrr bef ecinses «7 Fa C. e™ 7, eos e - ° - - ts MS oe UA Ne? 8 Giter 2.344430 Lower own. fo, 7 ae . wi Vorvuretersa ‘oterg mM °° . £ : A CC’ mt . ~ A _ -. : fee Le OM >ACh.AVO.UC IG) eT TED ett. wre tt! ae Fy etl CO vVeweon Cor. Lehican & kutler rn v C%. mv ne oor fe ‘« ous ow @ ° e a ee . ¢ ~~ ew re tN i a le ee COM, TON. Short wt. 1.72 we CS 4.22 22d Vee? bie. elOLe. fone: wEwiore ibe ore G.C Pod Saren seneT. Coneccr.: ich.” ine it. e.56°)0CUCd DE UE OLLIE Lares 7 ‘ a 5 : : yore . Perse ON el OOP. Acr.® Chestnut it. Lio? meeO UST’? _Vscest oe. (GN Goi COP. Loh.” Gnmeond CTT my Ga 7° aren voweCll weieeCOre.cursond *% Ottave. ol” 1.0% 1°77 =F FS °; »” r . ~ 9 ’ ~ . - ‘ J ewe ON he eorm.uomcand 2 otroere. 8,FfF 79° C.19) 4 7ETCO ry 4. ~e rd . ~ -? ~ mn” ‘ ”. nen we eo lOetOr> Gteor, cout evd of west om & OF me -— % Af we ’ CY ciurarce ef CLuy LUsll. Choc... Line. ~~ e e -s fs “d ° ) j~! Da e oa J pz — e ro) L2 ~] 2 veuveG P.euttawa G&G COVToro. Loec:k 14.721 SECO Ll 4recr ye eGOT. £ ee .Qunsend. Poe th LC,’ Lehto Tere be ee P.iehican ¢ & Mat 1° ,¢ 1 Vai 7 " “ Uhoaatmut. Veit e463 9.07 PCAC ‘pene J " Cy wv OLTONr’e goed 11.°° SP Leicr Sauce u & chert. 11.72 LIP ITF Len e- r we + +. ense i u ie Mutton, 89,63 1. t C4. 11,27 1.C8 8 —_ . ese SOS Poet Vest of Littler. Wel” 37H 8701S 17 o e.tele 1°.17°5 Teliies aclse a dl oes: vl) ties ek eo OF CIO BPI, OP . , : ‘ \ ‘ . a ahead bcs sm eda sa. oa @-+ -8@ e Sta -1@- @e::'@: tT". Mi Med, | re “ym vat ew TY \ee 7 PF ‘ wre: I e shoe. . ee & otk as o% ‘ AY. 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