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Show 164 \oon halt rf Scptcmue1· 1 , on the lrft bauk f?.( l"c Plottr 1·iver. IJETCR::\1IN .\TIOK OF L.'\TI'!TDE. ScptcttJ l.Jcr 1-, 1 ..... 12.-Aitituclc of tbr tlll itl the n ~ criJtaJI. Observatimls. -- -------- Double altituu(' of the True central alt itude. Bun'· lower Ji111h. d t f!;. min. ,<((', elf:. ntiil. <rr. 101 4!) 50 51 0!) ;2!) __ I Index error _; - l' 3'2 Thermometer, ~0') . o' - ~. '""' ~··r 40 40 ~l . \ oun halt nf Srptembcr l_ 0, on the left banh cl the Platte river. lH':T E Rl\ll.\' A TIO~ OF L.\TlTL"IH:. ~eptcmbe r 19, 1 42. - Altitude of the •' tm in the meridian. · ( Jbsen·at ions. Double alti tude of th I True central altitude. 1 Lllitude. Bun's Jo,ver limb. I I d"~· 111i11M srr. -~ --- dt''i· min-. -f'-•'r.---~ - -dr~. _to~-- o 1~ 3~- __ I_ 5u 46 49 4o min. 39 Index error == - 1' 32". 'l'hermOJuetcr, 0°. - - - - - - - Yoon ltalt nf &r')Jtr:mber 20, on the lrfl /;auk of the PlrLttc rita DETER.l\ilNATIOJ\' OF I.ATlTt:.:DE. Scptcn1ber 20, l 42.- AlLitude of the Sun in the tneridiat . Obsen·ations. --~. ·-- ------- - -- -- ---~ Double :.llt iludr of the ~un 's lower lim b. rl~·~. min . r. lOV UU 4:3 ----- True central altitlldc. I Latitu {~. ---- -f------- dP~. min . src. 50 14 so d~. mift. sr::. 40 4~ l') Index error ==- 1' 32''. Thermometer, 77°. .. • • - 165 .l.Jncampmrnt on the lPjt bank of Platte river. DETER:\ll~ ATIO:'i OF TL\IE. ~cptcm ber 20, l 42.-Altitnde of Arcturus. Observations. Donhlt' altitude of Time of chronometer. ·\rcturu ·. ------- d• p:. 1rti1L ~rr. h. min. ~cc. 4 29 50 9 04 :31 lntlex error ==- - 1' 32''. DETE R~ll~ATION OF LATI TUDE . , Pptember 20, 1842.-Altitude of Polari -... Observations. Double al titude of Po· Time of chronometer. 1ari . d.rg. rnin. sec. h. mitt. ~cc . 8~ 05 10 9 19 49 82 OS 20 9 24 02 82 15 15 9 31 51 82 17 50 9 36 39 82 20 40 9 39 35 Thermometer, 56°. Result of calculation. True altitude. Mean time. Lat itude. ....-.. ~---- h. min. sec. h. min. stc. d8g. min. 41 04 54 7 35 23 4~ 54 , [ 243 1 su. 02 |
