GEOGRAPHICAL POSITIONS. 
669 
PETIIOPAULSKI. 
I regret very much that circumstances prevented my observatory being erected at this 
place, as the lunar observations of the different officers of the ship vary in an extraordinary 
manner ; and unfortunately Mr. Preuss, the astronomer who accompanied Captain Kotzebue, 
obtained at this place two results differing ten miles, each of which coincides with the ex- 
tremes of the longitudes determined by our own observations. 
Thus, the mean of lunar observations by myself, 0 and * E. and W., in J826, 
•fo- by Lieutenant Belcher, 1826, . . ’ 
Mean, 
Mr. Preuss, by eclipse of the sun, 2Sth June, 1824, 
Lunar observations by Lieutenant Wainwright, © E., in 1826, 
Phto ditto E. and W.,’in 1827 
Ditto by Mr. Wolfe, © E., 
Mean, 
Mean of culmination of the moon by Mr. Preuss *, 
Emersion, 1st satellite, in 1827, by myself. 
0 
/ 
ff 
210 
10 
44 
W. 
201 
12 
52 
w. 
201 
11 
48 
w. 
201 
11 
24 
w. 
201 
22 
45 
w. 
22 
18 
21 
15 
201 
22 
06 
201 
19 
50 
w. 
201 
19 
00 
w. 
Under these doubtful circumstances I shall deduce the longitude, by chronometer, 
f'-om San Francisco in the east and Macao in the west. Between Petropaulski and tlie former 
place the difference of meridians was measured in two successive years, and found to be 
0 I n 
1826 39 23 33? 
; 1827 39 26 12$ 
f 1826 39 27 0.5 1 
39 27 00 
Between San Francisco and Chamisso, 
Between Chamisso and Petropaulski, 
tl827 
San Francisco and Petropaulski, 
Longitude, San Francisco, 
Longitude of Petrop,aulski, 
Sum, 
Difference of meridians between east end of Kaikong, at Macao, and Port Lloyd, 28 41 06' E. 
Between Port Lloyd and Petropaulski, * 
Macao and Petropaulski, ....... 
Longitude, Kaikong (Macao), 
Longitude of Petropaulski, 
Which agrees nearly with that deduced from San Francisco. 
The results will now be as follow's : 
Longitude by lunar observations. 
Ditto 
ditto 
by chronometer from San Francisco, 
Do. Macao, 
Eclipse 1st Satellite, 
Culmination moon do. by Mr. Preuss, 
Eclipse © do. do. 
The latitude of the church at Petropaulski is 
by Lieutenant Wainwright, 
Mr. Wolfe, . . . . 
0 
f 
If 
39 
24 
57 W. 
39 
27 
02 W. 
78 
51 
59 W. 
122 
23 
07 W. 
201 
15 
06 W. 
28 
41 
06' E. 
16 
30 
12 E. 
45 
11 
18 E. 
246 
27 
00 W. 
201 
15 
42 W. 
0 
f 
ft 
201 
11 
48 
201 
22 
06 
; 201 
16 
27 W. 
201 
15 
06 
201 
15 
42 
201 
19 
00 
201 
11 
201 
19 
50 
53 
00 
58 N. 
00 
29 N. 
00 
35 N. 
* Mr. F. Baily has done me the favour to examine Professor Struve’s remarks on Mr. Preuss’s observations, and con- 
cludes by giving the preference to the results by culmination of the moon ; Professor Struve having recomputed them with 
very great care. 
