519 
1908-9.] Motion of Neptune’s Satellite. 
3. The following table gives a list of places where most of the observa- 
tions made since 1892 may be found : — 
Observatory. 
Epoch. 
Source. 
Yol. 
Page. 
Observatory. 
Epoch. 
Source. 
Yol. 
Page. 
Lick 
1892-3 
A J. 
XIII 
10 
1905-6 
A.J. 
XXV 
100 
1893-4 
XIV 
9 
Washington 
*1897-8 
XX 
134 
1894-5 
XV 
26, 42 
*1899-1900 
A.N. 
153 
257 
1895-6 
XVII 
62 
1902-3 
A.J. 
XXIII 
144 
1896 
XVII 
62 
** 1 904-5 
XXIV 
188 
1897 
XVIII 
168 
**1905-6 
XXV 
93 
1898 
XX 
71 
Lowell 
1896-7 
XVII 
132 
1898-9 
A.N. 
149 
374 
1898 
XX 
30 
Y erkes 
*1897-8 
A.J. 
XIX 
27,65 
Greenwich 
*1902 
M.N. 
LXII 
624 
1898-9 
XX 
41 
*1902-3 
LX1II 
504 
1899-1900 
XXII 
27 
*1903-4 
LX IV 
835 
1900-1 
XXIi 
29 
*1904-5 
LXVI 
10 
1901-2 
XXIII 
105 
*1905-6 
LXVII 
92 
1902-3 
XXIII 
107 
*1906-7 
LXVIII 
33 
1903-4 
XXV 
41 
*1907-8 
LXVIII 
586 
1904 
XXV 
42 
A. J. — Astronomical J ournal. 
A.N. = Astronomische Nachrichten. 
M.N .= Monthly Notices of the Royal Astronomical Society. 
* Elements are deduced from these measures. 
** Measures are compared with the ephemeris, but the corrections to the elements are 
not deduced. 
4. In the next table are given, for each series, the observer, the mean 
date, the times of observation, and the values of cl s and s dp in the sense 
Tabular — Observed, obtained by differencing the observed distances and 
angles with those I have computed from Dr Struve’s elements : — 
Lick Observatory — Prof. Barnard. 1893-0. 
Paris Mean Time. 
d s. 
s dp. 
Paris Mean Time. 
d s. 
s dp. 
1892 
H. 
M. 
s. 
// 
// 
1892 
H. 
M. S. 
// 
// 
Nov. 13, 
15 
8 
2 
-0-25 
+ 0-08 
Dec. 16, 
12 
23 44 
- 0-07 
+ 0-02 
18, 
18 
32 
58 
+ 0-01 
-0-14 
1893 
20, 
17 
41 
21 
+ 0-37 
-0-07 
Jan. 8, 
15 
8 30 
-0-27 
+ 0-37 
Dec. 9, 
14 
49 
2 
+ 0-03 
-0-11 
13, 
15 
20 32 
+ 0-05 
+ 0-18 
20, 
12 
24 6 
-0-17 
+ 0-10 
Lick Observatory — Prof. Barnard. 1894-0. 
1893 
H. 
M. 
s. 
1894 
H. 
M. 
s. 
Nov. 12, 
18 
45 
25 
-0-05 
-0-08 
Jan. 10, 
13 
10 
19 
+ 0-02 
- 0-20 
13, 
18 
33 
42 
+ 0-32 
-0-21 
21, 
14 
34 
l“7 
i 
-0-08 
- 0-02 
Dec. 3, 
14 
8 
45 
+ 0-30 
+ 0-46 
22 
12 
42 
19 
-0-11 
4-0-07 
10, 
14 
47 
9 
-0-21 
-o-oi 
28, 
11 
32 
29 
+ 0-06 
-0-02 
1894 
Feb. 26, 
11 
53 
43 
+ 0-02 
4-0-10 
Jan. 7, 
14 
49 
38 
- 0-30 
-0-07 
