ae : : : : Cm 
475 [ 174] 
THIRD ENCAMPMENT ON A RIVER OF THE SIERRA NEVADA. 
Determination of longitude, January 21, 1844—altitudes of Procyon. 
id OBSERVATIONS. 
: Double altitudes of Procyon. Time of chronometer. 
ba 
Deg. min.  3€c. h. min. see. ; 
5558 : 7 84 16.0 
74 20 50 8 45 10.0 
74 49 50 46 32.6 
Index error — -+ 50 sec. 
* RESULT OF CALCULATION. 
"Mean time. Advance. Longitude. 
4 FOURTH ENCAMPMENT, NEAR A GAP. 
Determination of latitude, January 22, 1844—altitudes of Polaris. 
« 
OBSERVATIONS. 
annie Si ny 
= . = Ee a 
[=> ~~~ Double altitudes of Polaris. Time of chronometer. = —™S 
a ee Deg.” min. ~ sec. goes — 
a 1: : 5 
‘ 90. 10 45 $1. 241 
a0. 10 15 
10 «15 33 
80 09. 40 35 OL 
09 20 suas 
80 «=. «08 40 37 30 
80 0s 00 38 59 
a. GF 10 40 40 
Index error — -+ 50 sec. =e 
RESULT OF CALCULATION. 
a nn a 
