HYDRATES IN AQUEOUS SOLUTION. 



EVIDENCE FOE THE EXISTENCE OF HYDRATES IN SOLUTION, 



THEIR APPROXIMATE COMPOSITION, AND CERTAIN 



SPECTROSCOPIC INVESTIGATIONS BEARING 



UPON THE HYDRATE PROBLEM. 



BY 



HARRY C. JONES, 



PROFESSOR OF PHYSICAL CHEMISTRY IN THE 

 JOHNS HOPKINS UNIVERSITY. 



WITH THE ASSISTANCE OF 



F. H. GETMAN, H. P. BASSETT, L. McMASTER, AND H. S. UHLER. 



WASHINGTON, D. C. 



PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON. 



FEBRUARY, 1907. 



