a 
625 [ 174] 
MAN S42 OW Eee Wa ton ‘RIVER. 2 . 
Determination of latitude, ideas 5, 1842—altitude. Prosarts + 
% OBSERVATIONS. ied 
va 
Double altitude: of Polaris. ~ Time of chronometer. 
min, — sec, h. in. “a 
es to 30 6 508 *.65~ 
88 20 5 222 886 
“88 O 00 5 
88 - 02 5 
ww Us 30 5 
fos Thermometer 57°. 
q Index error = +- 25 sec. ssa 
. * 
* RESULT OF CALCULATION. : 
Deg. min. sec. h. min. sec. Deg. min. sec. 
44 00 35 3 02 49 / 42 32 31 
est 
| = : -— 
Determination of longitude, August 5, 1842—altitude ofa Lyre. 
OBSERVATIONS. » Z ee : 
D uble Ititude of « Lyre. e | i CE: ‘i of ae | ometer. eedeiememeree? 
ae e - ae ae 
- - m Ries — ys os = 
<etneniR ts t elas Vaeeae 
oe = i tite < 
oe 2 90 63 
oe < et * 
