597 [ 174 ] 
‘SECOND ENCAMPMENT ON THE RIGHT BANK OF PLATTE RIVER. 
Determination of longitude, June 27, 1842—altitude of « Aquilz. 
OBSERVATIONS. 
FIRST SERIES. _ 
SECOND SERIES. 
“Double altitude of a | Time of chronometer. || Double altitude of a | Time of chronometer. 
Aquile. quile. 
MERI 
Deg. min. see. h. min. — see Deg. min. see h, min. sec. 
ys ee Siete 5 Il 54 42.0 73 26 20 It 69 38 
_ 88 50 ll” 5F~ 20.0 73 5&2 40 12° 00 62 
73 O07 00 11 68 41.5 74 56 00 i 6 OS 38 , 
Index error — + 10 sec. 
RESULT OF CALCULATION. 
Mean time. Advance. Longitude, 
ca ‘he ‘min. sec. h. min. sec. | Deg. min. sec. 
10. 07 03 Le (6% 05 99. 37. 45 
Determination of latitude, June 27, 1842—altitude of Polaris. 
OBSERVATIONS. 
Double altitude of Polaris. Time of chronometer 
ex. min. 3€¢ A. min. see. ” 
3 59 45 * sat 13 03 
0 01 = 30 i. 6 « Ba 
79 04 00 ll 20 40 
73° 6 8 i See 
79. 87 60 tPF 26. 06 
RESULT OF CALCULATION, 
ene altirade. ae Mesn time. Ls Latitude. 
. 30° 50 9 2% 36 3932 
