(ms 510 
SCALP CAMP, ON THE SPANISH TRAIL. 
Determination of latitude, April 25, 1844—altitudes of Polaris. 
OBSERVATIONS. 
Double altitudes of Polaris. Time of chronometer. 
ee 
Deg. min. sec. h. = min. sec. 
68 00 00 7 24 35. 
67 59 30 26 rai 
‘ oo ae 28 
fj 20 29 ig 
67 57 10 30 <4 
56 40 32 + 
67 55 38. 051 
67 55 ;40 * _ 09 
bd 67 54 5 € 45 
% we 67 54 00 38 
Index error = — 7 sec. : aa 
RESULT OF CALCULATION. 
3 , 
True altitude. . Mean time. — Latitude. 
: 4 - ¢ 
+ syge ss i ail 
= ~ min, sec. h. min. sec. Deg. min. sec. 
a0 Se 8 30. 86 35 13 +08 
ee : _ 
— = 
online - ye 
Determination of longitude, April 25, 1844—altitudes of « Lyre. 
28 OBSERVATIONS. 
o Sas 
as Double altitudes of « Lyre. Time of chronometer. 
= 
Deg. min. __ see. “ h ~ 
“a  B * i es ene 
te 85 62° 35 Re. 1 3 20. 0 
ie hs ie Dw Sake 31.2 
. * @5 655, 40 - aS, 15, 42.0 
86 54 °° 20 18; ¥, 14.0 
— , © 24 . rate simian: 
a : pe ae. 
Index error = — 7 sec. ¥ 
. re | RESULT OF CALCULATION. . 
Me on ti ; i I = “a 
. * : 
Ae Rh. 
0 59. 144 
