” # . 
oe tS ' 514 
ENCAMPMENT ON A BRANCH OF THE RIO VIRGEN. 
Determination of latitude, May 5, 1844—altitudes of Polaris. 
. OBSERVATIONS. . Z 
Double altitudes of Polaris. Time of chronometer. 
Deg. min, : h. min. — see. 
70, 44 Pin 9 6 49 33 
" 0 43° 45 ¢ tt. SS 
= 70 42 40 6 53 26 
mw: ABs 40 & CO 
70 42 00 - € 56 21 
70 40 6 58 
7 39 40 7  O«, 30 
a 0 1° Gs & 
70 8638 , Gee 4 
70: 98 (20 : C. 2 
io & on SS 2S ee at Sel 
te e Index error — +- 10sec. 
7 “ 
RESULT OF CALCULATION. 
True altitude. — * “«.. Mean time. Latitude. 
aes 2 ad 
» Deg. min. sec. “Esk h. © min. sec! Pig Deg. min. see. . 
ee. Pees ee f. 08: = 36 38 56 
~ aa ~ s ~ 
>. 5 ey % : : » ? ae op ops to 
a ee: es hae re = =v r 
ee wears = ~ a * : ~ pike 
> | Determination’ of longtesates May 5, a of « Virginis, © 
zy # - 
=: cat . ©” oBsERVATIONS. é 
a . ote 
Double altitudes of « Virginis. i Time of chronometer. m 
ee : es ae a es x. : 
* er ae 
‘ Deg. min. sec. oe 
» ; = - . % 2 
et ae 5 : * 
; 7S, 20 | 
{= ©; 
woe eS * s rf 
 .. Index error = + 10 sec. a 
Spe . 
nnsti.t oF a = é 
