CHAPTERS ON THE STARS. 



415 



minute stars included in the cluster is no greater than that in the sur- 

 rounding regions, and that the lesser number in the region is to be re- 

 garded as accidental. 



Fig. 2. Rifts in the Milky Way, Photographed' by Baknard. 



Coma Berenices. — This cluster, which may be seen east, south or 

 west of the zenith on a spring or summer evening, contains seven stars 

 visible to the naked eye, each of the fifth magnitude. It may be con- 

 sidered as comprised within the limits 12h. 13m. and 12h. 25m. of E. A., 



