1889.J of the various Species of Heavenly Lodies. 



255 



ciently so for my present purpose in the present state of our know- 

 ledge : 



Table I. Binary Stars, Class 1. 



Y. Binary Stars, Class 2. Equal Magnitudes and Similar Colours 



(Yellow). 



The following list contains those binary stars in which both com- 

 * These colours are as given by Dawes. 



