ENCAMPMENT ON A FINE ROLLING PRAIRIE, AT a SPRING. HEAD OF 
521 
A TRIBUTARY TO SEVIER LAK 
Determination of latitude, May 19, adwtis of Polaris. 
[174] 
OBSERVATIONS. 
Double altitudes of Polaris. Time of chronometer. i 
» si 7 
Deg. min. — sec: k. min. see. y 
a... < 1. Si. oy 
73, 36 00 44 26 
ie ay 50 46 44 P 
; , 20 48 03 
: 7, :35, 50 bi, Abe 
73, 36. .30 52. 55 
73 36 50 55 09 
73. 36.86 57 45 
73 386 2:40 69 =. 27 
98. 2: BT; 30 Sm. 263 
Index error = + 10 sec. 
i : ie 
RESULT OF CALCULATION. 
True altitude Mean time. Latitude. 
Deg. min. sec. h. min. .sec | Deg. min. sec. 
36 00 s Bw | Ss Se 
Determination of longitude, May 19, 1844—altitudes of a Lyre. 
OBSERVATIONS. 
rs x 
FIRST SERIES. SECOND SERIES. 
ral : a 
Double altitudes of | Time of ehronometer. || Double altitades of | Time of chronometer. 
a Lyre. a Lyre. oe 
| 2 
h. mint sec Deg. min. sec. | h. min, sec. 
8 59.0 64-33 2. i ae oe 
- 08 05.0 64 53 30 | 13 27. 
09 «09.6 05° 12° 3 4 14 
10 21.0 65... 33.36 | 36 WG 
ae SS 65 51 fi * 11.8 
“re | : 
— Index error — +- 10 sec. S = 
. RESULT OF CALCULATION. *. " 
a Vet anes a 
* ——— : Retard. eae 
‘ “ae ee ES eee 
ff. =e F . = cr2 - 
hk. min. sec. “kh. mit see. * 
= v a So ge 44.3 + oe 
ae Sins : 
