439 [474 
STATION ON THE HILLS IN THE REAROF THE MISSION. 
& 
F . * 
Determination of longitude, November 5, 1843—altitudes of the sun. 
OBSERVATIONS. 
Double altitudes of the sun's lower limb. Time of chronometer. 
* . 
Deg. min. sec h. min 
25 40 1 17 20.5 
49 42 30 19 14.0 
49 47 30 1g 45.5 
49 52 0 20 20.0 
49 00 20 55.0 
Index error = -++ | min. 22 sec. 
* RESULT OF CALCULATION. 
Mean time. Advance. Longitude. 
he min. see. h. min. — see. Deg. min. sec. 
10 O09 43 t 10 07.4 120 53. 51 
