| OCR Text |
Show [ 243] 172 Encampment Ot t tlw left bank of tltP. l)latte n ver, at tiLe nwutlt 'if th;l! J'lk llorn river. DETERlH r~ _\ TION OP TIM 1~. Sep ember 2c, 1842.-Aititude of ~ Lym'. Observations. Double altitude of a T ime of chronometer. L)r~c . c!(~ . min. S£C. ft. llt/1!. U'. 99 JO 20 11 24 3G 9t:l 3:J 10 11 26 23.7 !)7 ~8 20 11 28 23 9G 52 40 11 30 5 9G b9 :w 11 32 51) Thermometer, 54°. InJex error ==- 40''. R esult of calculation. Mean time. Advance. J.ongitud . • • •••••• • •• •••• • • •• •••• • h. min. {cc. 9 39 25 h. . milt. cc. 1 49 15 [ 243] Juca mpmnzt nn tlte lrft bank of the [.J[rllte 1·h·Pr. DETEIDJIX \ TTOr>. OF l. \ TlTCfH:. "-)eptcmber 2~1; 1 1~. --Altituue of Polaris. Obser1:ations. Double ollllnclc or Tim of cltrono.n tcr. Pobri'. - --- -- rl,z. min. n r. h. lll'H ::,~t. J 40 :10 ] I) 21 'l7 3 4~ 35 10 24 21) 41 JO 10 26 37 4.'5 0.> 10 2~ ~f) 46 00 10 30 !il 4 20 10 J3 1 ~) :~o -10 10 :lfi 21 :i2 4.') 10 :1: l 4l 53 ;,o ) II 41 22 54 40 10 43 13 ThcrmoJ netcr 40° . Index error l l •:> If - ) 1,.. • l lesu!L rif calculation. --,--- True allitndr. Mean timC'. La.titudl'. eft,~. mill. sec. h. mm. S<'f. cli.J. mrn. n . 4L 52 05 8 4:j 56 4L 0~ 15 \ |
