SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE. 

 . 980 ^ 



1/ 



ON THE DENSITIES 



OF 



OXYGEN AND HYDROGEN, 



AND ON THE 



RATIO OF THEIR ATOMIC 



WEIGHTS. 



BY 



EDWARD W. MORLEY, Ph.D. 



/^' 



CITY OP WASHINGTON : 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION. 



1895. 



