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SECOND. ENCAMPMENT ON THE RIO- VIRGEN., 
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_ Determination of latitude, May 8, 1844—altitudes of Polaris. 
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OBSERVATIONS. 
Double altitudes of Polaris. 
1? min. set. © h. min. — see. 
58. 50 : ll 36 
* 70 #8258 8640 19 
70 ~3=s«B8 50 1457" -37 
70 57 00 ~ 16°“ 58 
7 css 10 * 11) 
. RES pe ag emp ary eran “ — ve Se 
a « Index error — +- 10 sec. 
5 ; 
emer : RESULT OF CALCULATION. 
, a “ 
True altitude. Mean time. * Latitude. 
Deg. min... sec. “The mins. see: Deg. min. see. 
ss 2 & 2B BW oe ee 
Determination of longitude, May 9, 1844—altitudes of the sun. 
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OBSERVATIONS, 
“FIRST SERIES. SECOND SERIES. ae ag” 
. Fj r * ; 
itudes of the | Time of chronometer. || Double altitudes of the | Time of chronometer. 
sun’s lower limb. sun’s lower limb. pine 
bs si e * 
min. see. h. min. see. Deg. min. sec. | he “min. — sec. 
54 4410 6 08 27.4 55 OB 9 4 Gita 19.8 
59 8 09 04.0 56 0 ¥. ie 42.0 
io: ae 09: 37:6 56 1) 366 04.4 
56°. 27>. 335 1017.0 56 «21 oat, 12 29.4 
55 39 8640 10 = 47.0 56 29 ° 40 2 6813 
Index error — — 2 sec. 
RESULT OF CALCULATION. 
Mean time. Retard. Longitude. 
=o. eae oo 3 e068 # 
[ 174 J: 
