“ es Jf 174 ] 
NOON HALE OV GhteR Rivet aveAR E 
ROAD TO THE CO! | 
Determination of latitude, , Aug. 16 Rea te pre thes sun. 
pee eae 
Double altitudes of the sun’s lower limb. Time of chronometer, 
‘ = 
| ¢ 
mm. “see. he. min 
= Cee! eee Zo... . 
123 20 34 
4 123 24 10 
123 26 00 12 
¢ 128-36 50 13 
198 87 5246 14 
ee 198 87 2:85 : 17 
ee 198 «26 «915 M s% 2 19 
123 24 45 21 
: 128 23-36 : 22 
138. | 8h Oo 24 
ie ie : Index error = -+ 1 min. 42 sec. + 
ashivtiggrot RESULT OF CALCULATION. © agai 
True altitude. Apparent time of transit. Latitude. 
; ui si 
—... Degs__ min. _ sec. h. min. _ sec. Deg. min. see. 
62 00 8 28 i Se 41 46 54 
es 3 ENGAMPMENT-ON: BLACKS. FORI-OF GRBEN. RIVER. 
Determination “ latitude, August 17, 1843—altitudes of J Polaris. 
OBSERVATIONS. 
36h Aor te ef? ES ipa | | : Et isats : 3 feta } gt Tes aepbapitt © 
4 h min, $0. oye! 
5 30 45 a. m. 
36 Lt a 
< ly “ sige lata. at 
” Index error — — 30 sec. = e 
0.32 * _ RESULT OF aia Rt 
+ ts , ya wo £ 
52) Troealtitude. ~~ Mean time. °° Latitude. ‘: 
- min. sec. a ee rae min “e Deg. min. 
- 06 15 4 9 re aie = 7 «1 
Determination F longitude Augiat 17 i: 1819—Emersion Abeses, % 
a ale ee ae 
ae i Sait j ti : | I —? : 
h. min. ‘ | RP mine wg? 
ee Me | a 50 36 ee 
at . steal - ? ry 
