OF NEBULAE AND CLUSTERS OF STARS. 
25 
No. 
not so called in B.A.C., is doubtless No. 3741 of that catalogue) was mistaken, 
and should have been called 46 Leonis minoris. Consulting the original sweep 
(sw. 487, H.), I find this surmise not corroborated ; for the nebula, when reduced 
by the star next preceding it (37 Leonis minoris), gives the same Polar distance, 
and, within a few seconds, the same R.A. But there is some faint indication of 
the figure 6 in the reading of the Polar distance piece 56° 55' having been written 
over a 7, which would have thrown the nebula somewhat below the southern 
limit of the sweep, and might have caused a suspicion of error at the time. I 
found no nebula in the catalogued place in my sweep No. 337 (h.), so that the 
probability of an erroneous degree is strengthened. At the same time, it is not 
impossible that this nebula may be identical with No. 2236 =h. 779, the mis- 
take in the degree lying the other way. 
2238 h. 780=1. 172. h., in Ph.Tr., suggests that this nebula may have moved. There 
is, however, no ground for this supposition, as its place agrees quite remarkably 
with that brought up from C.H. But query if the double star have not moved, 
since one of the observations places it “ in the middle,” and a subsequent one 
makes the southern extremity of the nebula touch the large star of the double 
star. 
2276 h. 806=11. 101. Found to rank as a first-class nebula by M. D’Arrest with the 
4^-in. Leipzig refractor. In this Catalogue it stands described as “ very Bright,” 
by a mean* - of 4 observations. See remark in note 2201. 
2310 h. 823=111. 111. There is a strange amount of discordance between the observed 
and reduced places of this nebula. Auwers makes the P.D. for 1830 = 84° 29'. 
C.H. has reduced the single observation of W.H. by two stars 84, r Leonis 
and 349 Bode Leonis, and her results differ by 10'; r, which gives the greater, 
being stated to be “ too far distant in P.D.” The several results stand thus : — 
P.D. 1830, by Auwers 84 29 
„ by r Leonis (C.H.) ... 84 20 
„ by h. obs 84 15 
„ by 349 B. Leonis (C.H.) . . 84 9| 
My observed P.D. is nearly a mean between those of C.H. 
2315 h. 828=11. 42. Not seen by Lord Rosse when once looked for (see notes on 
No. 132, &c.). 
2319 h. 829=111. 351. The observations of this nebula, which are numerous, disagree 
so very remarkably in the particular of brightness, that a considerable suspicion 
of variability exists. 
2373 h. 854=M. 65. There is a misprint, 45° for 75° np to sf, in the position of 
extension in my Catalogue of 1833. The diagram in the original sweep also 
corroborates this, as does also the figure (fig. 53) accompanying that Catalogue. 
mdccclxiv. e 
