relating to the sidereal part of the Heavens, 277 
‘‘ extremely rich. Towards the centre the stars are extremely 
“ compressed, and even a good way from it. With 171 the 
“ diameter is a little less than i of the field, and with 220 a 
“ little more; the field of one being 9' o", and of the other 
“ 8' 0'', a mean of both gives the diameter of the cluster 2' 50", 
“ but 1 suppose that the lowness of the situation prevents my 
“ seeing the thinly scattered stars, so that this cluster is pro- 
bably larger than it appears.""^ 
Con)rnon 10 feet telescope. Space-penetrating power 28,67. 
“ When the 19th of the Connoiss. is viewed with a magnify- 
‘‘ ing power of 120, the stars are visible ; the cluster is insu- 
“ lated ; some of the small stars scattered in the neighbourhood 
“ are near it ; but they are larger than those belonging to the 
cluster. With 24,0 it is better resolved, and is much con- 
densed in the center. With 300 no nucleus or central body 
‘‘ can be seen. The diameter with the 10 feet is 3' 16", and 
“ the stars in the centre are too accumulated to be separately 
“ seen."' 
7 feet telescope, space-penetrating power 20,25. “ The 
“ 53d of the Connoiss. with 1 18 is easily resolvable, and some 
“ of the stars may be seen.'" 
It will not be necessary to add that the two last mentioned 
globular clusters, viewed with more powerful instruments, are 
of equal beauty with tlie rest; and from what has been said it 
* The large lo feet telescope is in a considerable degree subject to the obstructions 
arising from change of temperature, and tarnish; but as it can be directed to any 
pai t of the heavens in a few minu-es, and is easily prepared for observation, it be- 
comes a very useful instrament when the dearness of ti.e atmosphere is interrupted 
by flying ciouds ; or wlien the place of an object not visible in the finder, or night- 
glass, is to be ascertained. 
