a 2.) 
. 491 'e [174 J 
$ - os 
ENCAMPMENT ON THE RIO DE LOS MUKELEMNES. 
Determination of latitude, March 25, 1844—altitudes of Polaris. 
OBSERVATIONS. 
Double altitudes of Polaris. Time of chronometer. 
e on x 
Beg. min. sec. h. min. — ste. 
75 32 30 7 22 23 . 
75 31 25 23 28 $ 
75 29 50 25 10 
75 29 25 26 07 
75 28 40 27 22 
75 27 40 28 21 
75 26 00 29 51 
75 26 40 31 14 
75 24 45 32 21 
vis 23 45 33 10 
Index error = + 10 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time. Latitude. 
Deg. min. see. h. main. see. Deg. min. see. 
37 42 52 7 53 21 38 08 23 
ENCAMPMENT ON THE RIO DE LAS CALAVERAS. 
Determination of longitude, March 26, 1844—altitudes of the sun. 
OBSERVATIONS. 
FIRST SERIES. | SECOND SERIES. 
7 
Double altitudes of the | Time of chronometer. | Double altitudes of the | Time of chronometer. 
sun’s lower limb. sun’s lower limb. } 
Dez. min. sée. h. min Deg. min. see min.  s€c. 
06 00 3 53° 06 3 ao 603.5 
5 51 -@& 26 §2 58. 70 29 «© 22.5 
52. 37 50 52 ¢ 36 29 48.7 
i 28 2 10 30 14.0 
53 15 10 28 6&2 26 10 30 49.4 
Index error = - 12 sec. is 
RESULT OF CALCULATION. 
. 
Mean time, Retard. Longitude. — 
Ramee , ‘ a 
he min. | see. he min. S€e. 
‘ $ SO 168 137 
3 ae a 16. 
i ee « 
i ae ee 
