ATB 
[ A%4~}. 
SECOND ENCAMPMENT ON A’RIVER OF THE SIERRA NEVADA. 
Determination of longitude, January 19, 1844—altitudes of a Cygni. 
OBSERVATIONS. 4 
Double - gad of a Cygni. Time of chronometer. ® 
Deg. min. see. h. min. — see. 
60 54 50 6 35 59.0 
60 27 25 37 23.5 
60 10 20 38 18.0 
59 oF 35 39 15.0 
59 32 30 40 18.0 
Index error = ++ 45 sec. z 
. % 
; RESULT OF CALCULATION, 
Mean time. : Advance. Longitude. 
Se & 
h. «min... see. he min. see. 
6 18 
é 
ball 
* 
“Determination of longitude, January 19, 1844—altitudes of « 
Xa eee 
OBSERVATIONS. 
@ Double altitudes of a Orionis. Time of chrononitter. ; 
- min sec h. mn sec. 
ae 24 «00 7 6 
73° 52 50 i 02 
14 i25e 50 47.0 
i 74 i248 ~ 90 04 «58.0 
RESULT OF CALCULATION. 
he min. see. ee 
PAS. 36.8 
