533 [ 174 i= 
ENCAMPMENT ON ASHLEY'S. FORK. : 
Determination of longitude, June 5, 1844—altitudes of « Lyre. 
OBSERVATIONS. 
4 
FIRST SERIES. — SECOND SERIES. 
Double altitudes of | Time “of chronometer. | Double altitudes of | Time of chronometer. 
a Lyre. a Lyre. 
Deg. min sec. h. min. sec Deg. min. see. h. min, — see. 
67: 09 6. 6 “ob 16:6 69. "40: 70 6 56. «SRT 
67 «31 (0 5221.6 70 09 30 Wes 4 
67 «648.~—=CO«4D. 53 «15.7 wa 7 00 48.4 
68 10 ‘35 54 70 46 45 “OL 644.7 
68 29 15 55 09.0 71. Om 05 02 42.0 
Index error = + 5 sec. 
RESULT OF CALCULATION. 
* 
Mean time. Longitude. 
Ah. min. sec. h. min. — sec. e 
Sue TE ok ee be 
‘ 
Determination of latitude, June 5, 1841—altitudes of Polaris. ' 
_ OBSERVATIONS. : 
4 ae * me 8 
oe : 
‘Deg. min. sec. he mine os | tee. : 
xi 58 40 7 07 00 
7 * 50 : te ne eee 
phy | 0 oo 09 35 . 
aw 59 48=—- 30 ‘ li 26 
77% .59 50 13 10 3 
785 00° ~00 14 34 : 
78 00 15 16 03 
5 wa 00 1b 17 08 : 
= 78 00 30 18 59 Be 
73 00 10 i9 56 
Index error = ++ 5 sec. 
RESULT OF CALCULATION. 
True altitude. Mean time. 
Deg. min. see. Ah. min. sec. 
3 68 me € 88 oF 
