359 
ENCAMPMENT AT BOILING SPRINGS. 
__Petermination of latitude, July 18, 1843—altitudes a Polaris. 
[ 174 ] 
OBSERVATIONS, * 
Double altitudes of Polaris. Time of chronometer. 
sd Deg. min. sec. min. sec. 
76 39 10 » Il 01 04 x 
; 40 00. ee ee 
76 41 50 04 59 
76 40 10 06 20 
76 45 20 - 12 04 
76 47 30 14 32 
76 51 50 18 53 
76 51 50 20 31 
76 53 20 22 14 
Index error = — 30 sec. 
« RESULT OF CALCULATION. Shia 
True altitude. Mean time. ‘Yatitnde. 
Deg. min. sec. h. min. see. Deg. min. 
38 21 22 10 01 43 38 52 10 
Determination of longitude, July 18, 1843—altitudes of Arcturus. 
OBSERVATIONS. 
FIRST SERIES. | SECOND SERIES. 9" 
Double altitudes of .| Time of chronometer. || Double altitudes of |. Timeof chronometer. 
Arcturus. ~ = &) 
Deg. min. sec. h, min. sec. || Deg. min. ‘sec. hi min. sec, 
89 14 30 10° 45 57.0 | : sds Se os 
88 29 10 47 48.5 | 73 5600100 4 68F 25 «636.0 
Sy 40 45 49 57.0 || 73 18 9640 = 26 6540 
GT, OG “70 51 22.0 || 7 440915 28 23.0 
86 41 ‘30 52 330.0 
oe : Index error = — saat Sec. oor 
RESULT = : CALCULATION. 
Mean time. Advance. Longi = 
Stariir,. uo ; ics ee 8 
a h. min. : sec. a h. min. = ae se 
qt - 08 Wee Es 09" m 45.8 ee eS. 
rs ue ei ai ee 
—.......... < 
