Brees eae. 
: ENCAMPMENT ON LITTLE a CREEK. 
# Fi é 
Determination of latitude, June 18, 1842—altitude of Polaris. 
OBSERVATIONS. - 
Double altitude of Polaris. Time of chronometer. 
Deg. min. sec. h. min. secw 
75 49 00 10 44 04 
75 50 20 10 oR 
75 61 40 = 10 51 48 
20 10 53 | 34 
75 53 20 10 55 09 
: RESULT OF CALCULATION. ‘ 
True altitude. _ Mean time., Latitude. 
Deg. min. sec. h. min. see. Deg. min. 
9 0s 46 ’ a 
ENCAMPMENT ON A TRIBUTARY OF THE BIG VERMILLION CREEK, 1,356 
EET ABOVE THE LEVEL OF THE GULF OF MEXICO. 
Determination of longitude, June 19, 1842—altitude of the sun. 
OBSERVATIONS. 
fIRST SERIES. SECOND SERIES. 
Double altitude of the| Time of chronometer. Double altitude ns EN ee 
lower limb of the sun. lower limb of the sun. igh 
¥ 
Deg. min. sec. h. min. sec, Deg. min. see. h. min. see. 
38 (16 «640 7 18 16.0 ce. 
37 59 30 7 19 02.4 36 16 40 7 = 99.0 
37 43 «45 7 19 450 35 46 50 ¢ mM 8S 
24 35 7 720° 36: 35 27 «640 7 2% 506 
36 45 «20 7°22 22.0 || 
Index error — — 42 sec 
RESULT OF CALCULATION. | 
2 ‘ 
h. min. see. . h. min. sec. | + ~—-Deg. min. sec. 
5 we FP i #2 “ 3. 9% 48 05 
sate ast 
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