664 
APPENDIX. 
TALCAHDANA. 
Observatory 3'' E. and 19" S. of Fort St. Augustine. 
LONGITUDE. 
LATITUDE. 
1825. 
Sun. 
Stars. 
Oct. 
By culmin. moon. 
0 t ff 
0 / ,f 
o t ff 
14. 
compared with Arcturus, 
72 54 34 W. 
36 42 41 S. 
36 43 03 S. 
16. 
« Aquarii, } 
42 51 
43 10 
11 Aquarii, J 
42 54 
43 12 
18. 
. • . /3 Aquarii, 
56 57 
42 46 
42 51 
19. 
« /3 Aquarii, 
73 00 07 
43 04 
4}’^ 46 
42 47 
72 56 56 W. 
Sun 36 42 53.2 
42 44 
Difference of Longitude, 
+ 3 
Stars 36 42 54 
42 59 
42 46 
Longitude Fort St. Augustine, 
72 56 59 W. 
Mean 36 42 53.6 
42 45 
— 
Diff. Lat. — 19 
42 58.5 
43 01.5 
do. 
by 100 lunar distances 0 and *E.'| 
Lat. 36 42 34.6 S. 

on the spot, and 101 ® W. at J- 
73 08 07 W. 
Sea, referred by chronometer, J 
do. 
0 W. and * E. by Lieut. Wain- > 
73 08 55 W. 
36 42 54 S. 
wright, . ... S 
Latitude Fort St. Augustine, 
36° 42' 35" S. 
Longitude, 72° 56' 59" W. 
This result differs about 3' from my observations at Coquimbo in 1828 referred back by 
chronometers. As those observations were made under more favourable circumstances, of 
which having a firmer stand for the transit was not the least, I think they are nearer the truth. 
oil! 
These place Fort St. Augustine in longitude, 73 01 17 W. 
Both, however, are liable to the errors of the lunar tables. In the 
geographical table wliich follows, I have deduced the longitudes of places 
between Fort St. Augustine and Pitcairn island from my observations in 
1826; but if the result of transits in 1828 should hereafter prove correct, 
the proportion can readily be added. 
BOW ISLAND. 
Observatory 12'' N. 25'' W. of clump of cocoa-nut trees at N. E. extreme of the Island, 
or 1' 35" S. and 5' 18" E. of the moral at the entrance of the lasroon. 
O 
LONGITUDE. 
1826. 
Feb. 16. 
18. 
19. 
By culmin. ]) , 
compared with Aldebaran, 
. Pollux, 
. . . a Leonis, 
o / II 
140 51 45 « Greenw'ich. 
140 51 25 * Greenwich. 
140 51 50 
Mean, 
Difference of Longitude, 
Longitude of N. E. cluster of cocoa-nut trees, 
do. by lunar observations ® and * E. and W. 1 
on the spot, .....( 
do. do. referred by chronometer from observa- ^ 
tions at Byam Martin island, . . 5 
Mean, 
Difference of Longitude, 
Longitude by lunar observation, 
do. by Lieutenant W ainwright on Byam Martin > 
island, referred by chronometer, . J 
140 51 40 W. 
—25 
140 51 15 
140 49 24 
140 51 36 
140 50 28.5 
—25 
140 50 03 W. 
140 56 20 W. 
Mean, 
Diff. Lat. 
LATITUDE. 
Stars. 
0 
/ 
n 
18 
6 
15 S. 
6 
32 
6 
05 
6 
14.5 
6 
03.5 
6 
11.5 
6 
00 
5 
52 
5 
58 
5 
59.5 
6 
03 
5 
54 
6 
34 
5 
55 
18 
6 
06 S. 
-fl2 
18 
6 
18 S. 
By Lieutenant Wainwright, meridian altitude ®, 18 06 20 S. 
Latitude of N. E. clump of cocoa-nut trees, 18^ 6' 18’'' S. Longitude, 140" 51' 15" W. 
