( 174 }, Aad 
ENCAMPMENT ON THE RIGHT BANK OF THE COLUMBIA, 15 MILES BELOW 
ty AR ea THE CASCADES.. 
Determination of longitude, November 12, 1843—ailtitudes of the sun. 
OBSERVATIONS. 
2 - e 
Double altitudes of the suii’s lower limb. _ Time of ometer. 
= eg 
Deg. min. sec. * : A. min. set. 
33° 23 «©6400 10 13 08.0 
33 46 20 14 28.0 : 
34° = 00-30 15 . 325 
li 10 16 24.0 
. 34 24 00 17 18.0 
Index error = -+- 2 min. 6 sec. 
is evi RESULT OF CALCULATION. 
Mean time. Advance. Longitude. 
Ah. . mm... pee: MM. ae 
9 05 10 1 1 12.3 
; = i esielen ne : | he 
Determination of latitude, Nov. 12, 1843—meridian allitudes of the sun. 
: ; OBSERVATIONS. = 
Double altitudes of the sun’s lower limb. Time of chronometer. 
Deg. min, sec. hh. ‘mine ~ se. 
52 58 00 0 51 40 
F 52 57 40 52 53 
62 58 10 53 56 
ee ee a. ae 
2. ee 03 
 & &. 4. i 
52 52S 05 
E aay 5 : 5 
a Index error = +- 2 min. 6 sec. : : 2 
° 
een RESULT OF CALCULATION. 
ees nee eee eee . 
transit. Latitude. + 
