{ 174 ] eo 
ENCAMPMENT ON THE MOHAHVE RIVER, ON THE oa TRAIL FROM 
PUEBLO DE LOS ANGELES TO SANTA F 
Determination of longitude, April 21, <i of the sun. 
sang 
OBSERVATIONS. 
+ 
FIRST SERIES. SECOND SERIES. 
« ; 
Double — — the | Time of chronometer. ||Double altitudes of the| Time of chronometer. 
’ . 
sun’s lower : sun’s lower limb 
Deg. min. sec. h. min. sec Deg. min. sec h. min 
41 55 60 3 47.5 40 40 45 eee Fy 
a 6ST. 5D 55 =~ 31.0 46 28 16 58 19.8 
41 24 20 56 01.4 40 14 10 58 
41 12 00 56 0 36 10 59 37.2 
40 00 a¢)6| 04.3 39: 29 «= *20 = 00 83.5 
Index error — — 15 sec. - 
RESULT OF CALCULATION. 
Mean time. Retard. Longitude. 
h. min. sec. h. min. sec. Deg. min. sec: 
4 51 25 0 53 50.3 117 tT ie 
Determination of longitude, April 21, 1844—altitudes of Arcturus. 
OBSERVATIONS. 
FIRST SERIES. SECOND SERIES. 
= Double: aldiedes of | Time of chronometer. || Double alitudes of | Tine of cheonvmneter. 
Arcturus. . Arcturus. 
a Deg. min. min . Deg. min. sec h. min. sec. 
65 23 10 6 59 49.0 67 27. 00 04 49.0 
66 00 Ol 15.7 67 49 25 05 «42.4 
66 21 25 02 08.0 68 09 25 06 30.0 
<“. s 02 57.4 ° 68 28 45 07 «16.7 
a. 03 55.0 || 68 51 55 0g 15.0 
ss Index error — — 15 sec. 
RESULT OF CALCULATION. 
