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Show [ 243] 138 Enca1npment on tlte Sweet JVater river, one mile belou R ock fndepe tdence. DETERMil\-ATIO OF L ATITU DE. Augus t 1, I 42.- A Iti tudc of Polari~. Observations. Double altituJe of Pn- Time of chronometer. Ja1·is. dtg. 111in. Sf('. h. min. St'C . 4 04 20 ll 29 33 84 05 50 ll 31 u 84 05 00 1l 32 15 84 07 50 11 3:3 42 84 09 00 ll 35 20 4 10 00 11 36 37 4 11 40 11 38 18 4 13 00 11 39 38 4 13 10 11 40 84 43 14 00 11 4·~ H Thermometer 470. Result of ca!culat1'on. True altitude. Mean time. Latitude. deg. min. ser. h. min. sec. de g. min. ser. 42 03 54 !) 18 40 4~ 2!) 56 Index error == + 12''. DETERMINATION OF L ONGI T UDE. Angu~t I, 1Stl2.- Altilnde of Arcturus. Obse rva t imzs. FIRST SERIES. S E C O~ O !!ERIE •. Double altitude of Time of chronometer. Double altitude of T ime of chronometer. Arcturu . Arcturu ·. deg. min. sec. h. mm. sec. tleg. min. h. 66 41 00 Jl 54 55.0 sec. mtn. ;;~c. 66 16 20 64 00 00 12 02 10 .0 11 56 03.0 '65 50 30 11 57 10.0 63 2:2 50 12 03 52.0 65 24 10 62 41) 30 12 05 29.6 11 58 19.5 62 14 10 12 06 5i.O 64 49 20 11 59 55 .5 61 4 50 12 08 06.0 R esult of calculation. Mean time. Advance. Longitude. h. min. sec. h. min. deg. 9 44 uo 2 sec. mi n. ::ec. 17 18 107 55 00 - 139 E ncampment on the S weet l Vatcr river. DETERMINATlOK OF LATlTUDP:. August 5, 1 t12.-Alt il ude of Polaris. Observations. Double altitud of Po- Time of chronometer. lari ·. ~~· mht. ser. h. min. su:. 00 30 5 I 55 8 e3 2U 5 22 15 88 02 00 5 23 3!.) 02 40 5 26 Ot 88 03 :w 5 27 32 ~I., h c rm omctcr, 57° . Index error == + 25''. R esult of calculation. True altitude. Mean time. Latitude. dttf. 44 min. 00 sec. h. min. ser. dq. 35 3 02 49 42 D ETERMINATION OF LOl\"ClT rTOE. Al!lgust 5, 184.2.- Altitude of a. Ly r~e. Obscrva tions. Double altitude of a T ime of chronometer. Lyr:c. de~. min. SPC . 67 38 30 66 5 40 66 35 30 h. milt. 5 04 5 OG 5 07 see. 26 .0 2l.5 32.0 min. 32 Sky very misty.- Obscrvation indifferent. R esult of calculation. Mean time. Advance. Longitude. h. min. SPC. [ 243] • St'f. 31 b.. min. sec. 2 45 14 2 20 53 . .................... . ' |