APPENDIX L.—ASTRONOMICAL OBSERVATIONS. 
113 
ASTRONOMICAL OBSERVATIONS—Continued. 
STATION ONE AND A HALF MILE EAST OE SIERRA DE 
LOS ALAMOS. 
Determination of time, February 24, 1854 .—Double altitudes of 
the Sun’s upper limb. 
STATION ONE AND A HALF MILE EAST OF THE SI¬ 
ERRA DE LOS ALAMOS. 
DETERMINATION OF LATITUDE. 
Determination of time, February 21, 1854. 
Altitudes. 
h. m. s. 
10 27 46 
10 28 24 
10 29 11 
10 29 54 
10 30 34 
10 31 17 
10 31 58 
d. m. s. 
84 33 00 
84 43 00- 
84 54 10 
85 04 40 
85 13 30 
85 24 00 
85 32 10 
Thermometer 66° Fahrenheit. 
Altitudes. 
li. m. s. 
10 27 46 
10 28 24 
10 29 11 
10 29 54 
10 30 34 
10 31 17 
10 31 58 
d. m. s. 
84 33 00 
84 43 00 
84 54 10 
85 04 40 
85 13 30 
85 24 00 
85 32 10 
Thermometer 66° Fahrenheit. 
STATION ON SUMMIT OF SIERRA ALTO. 
Determination of time, February 23, 1854 .—Double altitudes of 
the Sun’s upper limb. 
CAMP AT CORNUDOS. 
Determination of latitude, February 24, 1854 —Double altitudes 
of Sirius, m the east. 
10 35 16 
Thermometer 58° Fahrenheit. 
POINT ABOUT EIGHT AND A HALF MILES FROM THE 
CERRO ALTO. 
Determination of time February 23, 1854 .—Double altitudes of 
the Sun's upper limb. 
Thermometer 45° Fahrenheit. 
Observations discontinued. Night suddenly clouded up. 
Time, p. m. 
85 32 50 
84 53 20 
Thermometer 58° Fahrenheit. 
Thermometer 50° Fahrenheit. 
