[14] | 630 
ENCAMPMENT ee ta THE GUL 00 ee, 
at: of latitude, August 10, 1842—altitude of Polaris. 
OnSERVATIONS.: 
oe 
Double altitude of Polaris. 
a 
g 
i 
j : oe es ; 
: : — mate. > sees = mine” sets” 
4 986 90, a it 66 
84 55 «50 11 17.00 
84 57.80 11 18 38 
“© 45 Index error = — 12 sec. aa 
. . RESULT OF CALCULATION. 
True altitude. : Mean time. 
*, 
Sas 
ie 
. 
ee Be 
tiga 
ag 
ry 
i rd 
che poe one 0 ee ts 
ss 
: Ps . : = a 
; & i? 
== Las 
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