* 
F 
‘Determinagjn of longitude, Sin une 13, 1S44—altitudes r; a Aguile. 
* 
539 
FOOT OF THE 5 pidmens 
fimay 
ENCAMPMENT IN THE E VALLEY OF THE NORTH FORK OF THE PLATTE, AT 
OBSERVATIONS® . 
. > . ie a 
; : we 
Double altitadeg.of a Aquile. Time of chronometer.” 
7 a 
: ee 
Deg. min sec. : hk. min. see. 
ir: 7 47 56.0 
44 08 ee 4933.6 © 
Le om v7 ole 49.5 
= . 
* 
Index error = -+- 10 sec. 
+ 
¥ RESULT OF CALCULATION. 
= 7 : 
i. min. 4et. h. min sec. 
— we © oo ee ¥ 
| % ; 
Determination of longitude, June 13, 1844—altitudes of « Cygni. 
ae + OBSERVATIONS. 
Double onitigs of a Cygni. Time of chronometer. 
. mifked sec Ac mii 3 
% 40 7 55 22.0 
Se" 26: 00 56 = - 33.0 
68 47 46 57 40.7 
Thermometer 54°. 
— 4 ei 
RESULT OF CALCULATION. 
h. min. see. h. min. sec. - 
9 a7 53 y 51 21.1 oe 
