prs 614 
ENCAMPMENT ON THE NORTH FORK OF PLATTE RIVER. 
Determination of latitude, July 23, 1812—-altitude of Poluris. 
e 
OBSERVATIONS. 
¥ 
Double altitude of Polaris. Time of chronometer. 
Deg. min. . kh. min 
84 ou 10 © 29 8 
= 84 OL 20 it 3k 34 
84 02 20 Ht a2 45 
84 03 15 lb 2+ 67 
st 15 5 20 
gt 05 LS 3 bs ‘AO 
a4 OT 20 MM 33 57 
/ st O7 25 ra} 40 oz 
BL 10 00 1 43 
oo ww ik | 46° @ 
RESULT OF CALCULATION- 
True altitude. Mean time. | Latitude. 
wa 
Deg. min. sec. h. min. see. Deg. min. src. 
= ag Of 54 y oe tas eg 
id sil h! : - ¥ as 
Determination of longitude, July 23, 1812—altitude of Arcturus. 
OBSE RVATIONS. 
Double altitude of Arcturus. Time of chronometer. 
Deg. min. set. h. min. see. 
GB 4) 12 OL 08.0 
74 51 10 12 02 30 
74 O4 20 12 04 29.5 
RESULT OF CALCULATION. 
Mean tire. | Advance. Longituce, 
he min, tte. - bwin. te. 
jee $.. Al Ri 
