Ti]  aeatet 
— 
~~ 
il 
ENCAMPMENT ON. THE: OLD BED OF POWDER. RIVER, 
sablegmoction of longitude, October 15, 1843—altitudes of « Lyrz, 
OBSERVATIONS. . 
‘FIRST SERIES, | SECOND SERIES, 
Double altitudes of | Time of chronometer. || Double altitudes of | ‘Time of chronometer. 
a Lyre. ‘a a Lyre. fea 
| 
“5 1 . } : 
Deg. min. sec. hy min. sec. || Deg. min. sec 
2. 18 “0-5 10 01 573 || 90° 28 20 01.0 
91. 50-30 @ 03 =(00.0 || 990 06 10 04.5 
= of 30. 45 03. 57.6 i 89 46 45 00.7 
Pia 200 of 47.0 || 89 26 40 00. 
St Be 50-4" 35 05 546 | 89 04 00 05.0 
— “oF || 
— Index error — -+- 1 min. 26 sec. 
RESULT OF CALCULATION. 
: Mean time. : Advance. Longitude, © 
he Min. sec. h. Deg. min. see. 
oe me 33 1 68 06.0 7 81 
<s * * 
Determination of longitude, October 16, 1843—allitudes of the sun. 
ae 
2 
ENCAMPMENT on POWDER RIVER. 
OBSERVATIONS. 
SW 
“) we Double altitiides of the sun’s lower limb. 
2 : 
+ % Time of chronometer. 
Sd a i 
. 
. Soh. min. , 
é 29 45.5 
" 30 = -:28.0 
a 31 =:14.0 $ 
=. 31 «52.5 
ae ; 32 20.4 bs 
. . ©: ij Soin oe 
"Index error = + 1 min. 25 see, a 
RESULT OF CALCULATION = i. 
ie 
SS SES ee en 
