72 Dr . H£rschel’s Obfervations 
a ftar was to be dlfcerned. But then the gradations to thefc 
latter were by fuch well-conne£ted fteps as left no room for 
doubt but that all thefe phenomena were equally occafioned by 
ftars, varioufly difperfed in the immenfe expanfe of the univerfe. 
When I purfued thefe refearches, I was in the fituation of a 
natural philofopher who follows the various fpecies of animals 
and infeCts from the height of their perfection down to the 
ioweft ebb of life ; when, arriving at the vegetable kingdom, 
he can fcarcely point out to us the precife boundary where the 
animal ceafes and the plant begins; and may even go fo far as 
to fufpeCt them not to be effentially different. But recolleCting 
himfelf, he compares, for inftance, one of the human fpecies 
to a tree, and all doubt upon the fubjeCt vanifhes before him. 
In the fame manner we pafs through gentle fteps from a coarfe 
clufter of ftars, fuch as the Pleiades, the Praefepe, the milky way, 
the clufter in the Crab, the nebula in Hercules, that near the 
preceding hip of Bootes (tf), the 17th, 38th, 41ft of the 7th 
clafs of my Catalogues (i»), the 10th, 20th, 35th of the 6th 
clafs (c), the 33d, 48th, 213th of the ift (^), the 12th, 
( a ) RA, 13 h. 27' 40". PD. 6o° 2'. The place* of all the obje&s men- 
tioned in this Paper are not brought to the prefent time, but given as they were 
calculated from the bell obfervations I have ra-ade of them ; the change in their 
fituation arifing from the lapfe of a few years is too trifling to be any hindrance 
to our finding them very eafily. 
h. / // 
*~ 
w 
VII. 
* 7 - 
RA. 7 9 45. 
PD. 1 14 34. 
38. 
6 53 16. 
88 37. 
41. 
22 20 20. 
3 8 47 - 
(0 
VI. 
10. 
16 14 22. 
US 3 2 - 
20, 
0 42 4. 
1 17 46. 
35 * 
0 19 44. 
29 41. 
(') 
I. 
33 * 
11 57 26. 
78 25. 
48. 
17 10 46. 
107 36. 
' 
213. 
12 17 59. 
44 45 * 
150th, 
