43 2 Sir W. Herschel’s astronomical observations 
Observation of the gth cluster in the with class . 
£< 1784, 20 feet telescope. A large cluster of exceedingly 
44 small, and compressed stars, about 6 or 7 minutes in 
44 diameter; a great many of the stars are visible, the rest so 
44 small as to appear nebulous ; those that are visible are of 
44 one size, and are scattered all over equally. The cluster is 
44 of an irregular round form/’ 
The profundity of the cluster by this observation is of the 
734th order. 
Observation of the 10 th cluster in the with class. 
44 1784, 20 feet telescope. A very compressed, con- 
44 siderably large cluster of the smallest stars imaginable ; 
44 all the stars are of a dusky red colour. This cluster is the 
44 next step to an easily resolvable nebula.” 
The ruddy colour of the stars is probably owing to its low 
situation ; the profundity of the cluster is of the 734th 
order. 
Observation of the 11 th cluster in the with class. 
44 1784, 20 feet telescope. A cluster of stars, which, in 
44 respect of the size of the whole as well as the distance and 
44 magnitude of the stars, is a good miniature of the 19th of 
44 the connoissance observed a few minutes ago. The stars, 
44 like those of the foregoing cluster, preserve a faint red 
« 4 tint. It may be called the next step to an easily resolvable 
44 nebula. It is about if or 2 minutes in diameter.” 
The profundity of this cluster cannot be much less than of 
the 734th order. It is in the preceding branch of the milky 
way. 
