* 
, 601 : [1747 
ENCAMPMENT AT THE JUNCTION OF THE NORTH AND are FORKS OP 
THE PLA ‘TLE “RIVER, 2,700 ‘FEET ABOVE THE op ie F THE GULF OF 
EXE 50. 
" Determination af longitude, July 2, 1842—sun’s e altitude. 
Wiis thon! 
FIRST SERIES. F SECOND SERIES. , ; 
Double altitude of the Time of chronometer. || Double altitude of the | ‘Time of chronometer 
sun’s lower limb. | sun’s lower limb. een 
ae 
- a 
Deg. min. see. h. min. sec. | Deg. min. see. kh. min. - see. 
35 91 * 30° Tipe 57.0 FZ... 20 7... $3 . 39:0 
4 5! 0 48 Ths 32 «600° «(00 7 54 14.5 
34 24 «#65 7 41. 3a St S640 7 49.0 
33 $465.16 1. . 49-° 38 31% 39° OG r 7 40.0 
33. Ol 7. pl 256 31 614 = «10 7: 86° 23.5 
; ee aes 
5 ‘a = ie cere. 
‘ : Index error = — 18 sec. e? 
. . ©. RESULT OF CALCULATION. | 
Meantime. Advance. : ~ Longitude. 
5 6 1 eg? 50 
hk. .min. see, “he min. sees Deg. “sin. sec. 
+ 
