471 
ENCAMPMENT ON SALMON TROUT RIVER. 
Determination of longitude, January 16, 1844—altitudes of Procyon. 
OBSERVATIONS. 
C474. 
FIRST SERIES. 
= 
SECOND SERIES. 
5 oe , 
—Pouble altitudes of | Time of chronometer. || Double altitudes of | Tinse ef chronometer. 
Procyon. Procyon. 
Deg. min, see. h. min eg. min, sec, h. min. sec. 
69 45 00 3 31.2a.m.| 67 23 50 a tes 
69 16 20 2 a OL we 34 15.0 
68 45 25 29 5 66 39 10 35 = 22.0 
68 16 40 30 44.0 66 13 50 36 31.5 
67 49 55 32 02.0 65 4 00° 37 42.0 
: ‘Index error = -++ 44 sec. 3 ae 
RESULT OF CALCULATION. ine 
h. min. sec. 
3 
10 02 a.m. 0 Z2 20.0 
CAMP ON A RIVER OF THE SIERRA NEVADA. 
Determination of latitude, January 18, 1844 —altitudes of P Polaris. 
OBSERVATIONS. et ena 
be ieee ei 
Double altitudes of Polaris. Time of chronometer. 
Deg: min. sec. he min. see. 
75 51 50 6 39 a. m 
75 Sl 45 22 25. a 
or) ee 24. 07 
75 53 00 25 639 
75 52 50 ge 2T 10 
75 53 00 23 «3 
“ ~~ me * —- 
- = Index error — + 44 sec 
; RESULT OF CALCULATION. end 
nlp a — 
Deg. min. sec. hs min. sec. 
37° 38> 32 6 08 17am. 
