.LIGHT SCIENCE* FOR 

 LEISURE HOURS. 



FAMILIAR ESSAYS ON 

 SCIENTIFIC SUBJECTS, NATURAL PHENOMENA, &c. 



WITH A 



SKETCH of the LIFE of MAEY SOMERVILLE. 



BY 



RICHARD A. PROCTOR, B.A. CAME., 



n 



HONORARY SECRETARY OP THE ROYAL ASTRONOMICAL SOCIETY; 



AUTHOR OP 



THE SUX OTHER WORLDS SATURN ESSAYS ON ASTRONOMY THE ORBS AROUND US 



ETC. 



Truths of Science waiting to be caught. TENXYSON. 



LONDON : 

 LONGMANS, GREEN, AND CO. 



1873. 



All rights reserved. 



