138 
APPENDIX L.—ASTRONOMICAL OBSERVATIONS. 
ASTRONOMICAL OBSERVATIONS—Continued. 
Double altitudes of Arcturus, in the east. 
Double altitude of Spica Virginis, in the east. 
Magnetic bearing. 
S. 55 30 00 E. 
Thermometer 49^° Fahrenheit. 
Determination of time, April 11, 1854. —Equal altitudes of the 
Sun’s upper limb. 
CAMP ON RIO PECOS, MARCH 20 , 1854 . 
Observations for the variation of the compass. 
CAMP ON RIO PECOS, SEVENTY-SIX MILES BELOW 
MOUTH OP DELAWARE CREEK. 
Determination of time, March 23, 1854. —Double altitudes of 
the Sun’s upper limb. 
Time, p. m. 
112 48 10 
113 00 50 
113 12 40 
113 24 40 
113 38 40 
113 50 10 
114 02 00 
114 13 30 
114 24 40 
114 35 30 
114 45 40 
114 57 40 
115 12 20 
115 22 20 
115 37 00 
115 50 00 
116 00 40 
116 13 20 
1 13 04 
1 12 28 
1 11 51 
1 05 41 
1 04 57 
1 04 11 
1 03 37 
Thermometer 82° Fahrenheit. 
CAMP ON MARCY S TRAIL, FIFTEEN MILES FROM 
EMIGRANT’S CROSSING OF THE RIO PECOS, (east.) 
DETERMINATION O 
LATITUDE. 
Thermometer 87° Fahrenheit. 
Observations for the variation of the compass.—Double altitude 
of Polaris, in the west. 
Determination of time, March 24, 1854. —Double altitudes of 
the Sun’s upper limb. 
Magnetic bearing. 
N. 13 10 00 W. 
Thermometer 88° Fahrenheit. 
