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Show r 17·1 J Or, Co ("J H'l'. LOIJIS-HI~HI Dl':c CI~ <H' COLO~I·:L .T. B. BHAN'l'. r) ,. I cnn t·t ur t'z0 1•• f;jlt'lllf'· ' Jlla.t. ,' 2 1, l t) 12-a/Lilude of lhl' sun. omn : n vAT rON:-.. Double l\(titud<• or thl' lowPr limh of the t;un. Time,,.:· chronom<'lc• r. ( l~o !,bank. ) !t. min ,')(I' t) :l ·~ M /) f'!:,' 1/U{I si'r u 1 !l 10 H 1:! 30 G :JG r.~ ,) ,) 1() :w IO l) :lH f>l rm ' l] 1.'1' 0 I•' ( ' \ J.C U LATJON. M c•a11 ti nw. \ d v tllll' ('. I .ongitucle. h. 11/1/l . .~111' . h. mm . Me. 0 l :l ·10 l 2~ :i:> OH")V.ll VA'I' !ON'-', l!J tt 1 ' fiJ ,JI n ;s . Ooubl alt ttnclc Pl Y··~a. De~ 8'l 88 8H 89 89 min. St C 03 20 Ot .)0 50 10 'Z2 20 M 20 Meun time. h. 10 ntin. 16 sec. 35 T.iuH of rhronumc•tt-r. o. 'i',RIO. /t. min. .'lf't'. ll f>7 ·1 :J !i 5!1 ;H ·1 01 :n 1 oa 01 4 Otl 2fi II Dou hie• alt it nd c• 1Jf \ l'~. t. )){'~. mm. .~cr.. 90 n :~o Dl 1'7 20 !):t 01 !)() !~2 :l !) 4 t) I )!J ...... ....,. 10 Thc•rlllOnwt' r lHie>. RE "UL'r OJ<' CALCU J. AT IO~. Ad .. ·anc . Tinw of ehronomcter No. 7,8 10. h. milt. I /ICC. , ;f Ou 41 4 OH 10 4 10 09 ,1 11 fi2 I :l 4f.i --- ------ lt. 5 nun. 49 sec. Ol Deg. min. sec. 90 15 61 [ 74 ] fiT. LOlJI~-H I·;Hl D I~N C J·; <H' COLO\ I·:L .J. Jl . BU '\NT. /)etermina tiou r~( lu t i l ur!t·, J~ la.lJ J 7, 1 ''12 - a.l/ it 11tll' o.l P()/a:ri.\. Doublo ~ ttitudt ' of Polu•i•;. T mw of chrooomct.:r /)('g. 1111.1/ . S't '(', 71 :)N 20 71 .l ~l )() 71 40 10 1.•. 11/tt,. }j'('f.' . I~ 30 27 -1 :J2 11 4 !H) 20 ta:sur.·1· <Jio' c .\l.ulJL .\Tro~ . Trw~ ultitudo. Del{. nun. st•r :37 18 I" lt. w min. l :3 sec. •lA I~nttt\Hlc min. W'c. :n 24 ENUAMPMgNT A 'I' CJIOI/ I' t•:A IJ '~ LO WEI~ 'I nA J)l \(; JIOrJ~I~, Hl(HJT BANK <H' THE KA \Z'\, ' HIVE!{, l UO J.<'J·;I.;'l' \BOVl~ TJig LJ•;VI•;J. <H' '1'111~ GULF OF MEXICO. (From this tlat•·, up lt) th• ~ llh ol 1\ u ~u·~t, the• Brod thauk pocJ,c•t t·hronomotnr wn.s uso.l in not ing time] Determination of /l)n~·it·ude, Ju ne ~J, 1:::> 12- a/tilu.dc r~j'lh.c ·Htn. Double altitudf' ol" tlu sun'11 lower limb. .Deg. min. sec. 53 52 52 62 62 19 00 54 flO 39 35 22 25 02 flO Mean time. h. min. sec. • 67 22 0 B')F. H V A'rJON'i 'iF.\'0"0 'H" flll. 'i. Tinw or ch I"OllOlllctm. ( Brod.uauk.) Doubl altitud•• o~ tlw j Tinw of c:unom •ter. :-; nn'~ Jowt•r litHO. (Drockbank.) ft. () 6 6 6 6 min. SI'C. Dtg . mitt . 29 :J2.!) 51 21 :30 36.0 51 02 3 l 15.6 50 45 32 () 1.0 50 !!4 ~2 61.0 50 10 Ind \. error = - 25 Rl'c. UE 'ULT OF 'ALCULATION. Advance. h. min. 1 36 sec. 25 ~-- sec. ft. min. tee. so 6 :J4 39.6 20 6 35 30.0 60 6 36 12.3 00 6 :n 10.0 00 6 37 45.7 - - · ----- . Longitude. Dct;. 94 mm. Bee. 39 31 -------·----------- |