A SELECTION EEOM THE OBSEEVATIONS MADE WITH THEM. 709 
SELECTED OBSERVATIONS OF NEBULA. 
Number in 
Herscbel’s 
Catalogue. 
Number 
of times 
observed. 
Description. 
1 
2 
Nov. 4, 1850. Some stars seen in it, it is vF. Nothing fiu’ther remarkable. 
2 
1 
8ept. 18, 1857. 2 neb. nearly in line p. andf ; about 14' apart ; the p. one is of iiTegular 
outline ; F ; bM. The f. one is S ; E ; pB ; bM. 
4 
1 
Oct. 23, 1857. E. n. and s ; B nucleus. 
6 
6 
Oct. 12, 1855. E. n. and s; has a central nucleus and a # on edge, nf. the nucleus. 
13 
7 
Eesolvability not quite certain, irreg ; E ; nucleus. 
Oct. 7, 1855. There are 6 or 8 *s of about 14—15 mag. and several smaller ones ; I 
counted 7 knots, the 3 northern of which are the brightest; sketched. See fig. 1, 
15 
6 
16 
1 
Sept. 19, 1857. S; E, or nearly so ; and IbM. [Plate XXV. 
17 
2 
Oct. 26, 1854. Several S ; F. neb. visible at once in finder. 17 is E. and bM. 
21 
9 
Spirahty suspected, but more e'vidence wanting. Dec. 12,1851. Nucleus; E. Oct. 22, 
231 
25 f 
1857. I suspect outlying F. nebulosity, e.speciaUy p. and f. 
2 
Nov. 4, 1850. 23 is E ; and S. 25 has nucleus, and is E ; 3 others near. 
26"^ 
1 
Dec. 6, 1850. E ; F. nucleus ; 40" br. 
29 
4 
Aug. 21, 1852. Involves some *s, one of about 12th or 13th magnitude, £ ; vF. 
30 
1 
Dec. 9, 1854. E ; pL ; bM. 
32 
2 
Sept. 18, 1857. S ; d. neb. ; the n. one is E, sp, nf ; bM. 
35 
5 
Sept. 1849. r; L; and rather F. Oct. 7, 1855. 3 #s in it. 
37 
2 
Nov. 24, 18.54. Not L; E; bM ; a B. * close sp; r? 
40 
2 
Dec. 6, 1850. sbM ; another 18' distant. 
42 
2 
N^ov. 24, 1854. E ; bM. 
44 
9 
Oct. 16, 1855. vL; mE. np. by sf; sharp nucleus, for some distance round which, the 
neb. is B, and then suddenly decreases ; there is a B. # np. the nucleus ; and another 
involved in sf. end ; another in p. border. Nov. 2, 1850. Spirality suspected. 
45 
1 
Oct. 16, 18.54. E. n. and s; many #s involved. 
46 
1 
Dec. 7, 1857. s. of it is another neb. ; E. nearly n. and s ; 46 has B. centre ; mE. n. and 
s, arms vF. 
47 
4 
Nov. 3, 1855. Oval, and I think r ; and has a * at np. edge. 
Drawing not complete. The following are measures of some of the #s involved : — 
60 
51 
Dec. 18, 1851. 
Dec. 22, 1851. 
Oct. 25, 1851. 
Oct. 28, 1851. 
Nov. 24, 1851. 
1.13 
P03. 
248° 
Dist. 
6' 13" 
1.14 
243 
6 
14 
1.15 
260 
6 
51 
1.16 
260 
7 
42 
1.17 
241 
7 
30 
1.18 
280 
4 
22 
1.19 
301 
7 
35 
6.20 
219 
3 
46 
6.21 
246 
3 
6 
6.22 
234 
5 
1 
6.23 
258 
4 
46 
6.24 
271 
4 
20 
6.25 
252 
6 
40 
6.26 
295 
4 
34 
l.N 
83 
2 
2 
1.2 
6 
4 
54 
1.3 
309 
6 
1 
1.4 
1 
7 
25 
1.5 
244 
1 
57 
1.6 
254 
6 
13 
1.7 
8 
7 
32 
1.8 
12 
6 
40 
1.9 
11 
5 
46 
1.10 
349 
3 
0 
1.11 
345 
2 
10 
1.12 
338 
4 
43 
/if. 
13 - 
•13 
fze 
Be- 
so. 
S3. 
33. 
22 . 
•25 
