LIGHT SCIENCE FOE 

 LEISUEE HOUES. 



Aeries. 



FAMILIAE ESSAYS ON 



SCIENTIFIC SUBJECTS, NATURAL PHENOMENA, &c. 



BY 



RICHARD A. PROCTOR, B.A. CAMB. 



JIOXOnARY SECRETARY OP THE ROYAL ASTRONOMICAL SOCIETY ; AUTHOR OF 



'THE SUN' 'OTHER WORLDS' 'SATURN* 'ESSAYS OX ASTROXOMY ' 



' THE ORBS AROUND US ' ETC. 



'Truths of Science waiting to be caught.' TEXXYSON. 



ftfo 



LONDON : 

 LONGMAN 8, GREEN, A N D C 0. 



1886. 



All rights reserved. 



