472 PROCEEDINGS OF THE AMERICAN ACADEMY 



Five hundred and forty-seventli Meeting. 



February 27, 1865. — Special Meeting. 



The President in the chair. 



Addresses were made by the President, Mr. Safford, and 

 Professor Parsons on the scientific services and character of 

 the late Professor Bond. 



Mr. Whitney read a paper on the development of the min- 

 eral productions of California and the adjacent Territories. 



Five hundred and forty-eighth Meeting. 



March 14, 1865. — Adjourned Statute Meeting. 



The President in the chair. 



The Corresponding Secretary read letters relative to ex- 

 changes ; also a letter from Leopold von Ranke of Berlin, in 

 acknowledgment of his election into the Academy. 



The following paper was presented : — 



On a New Process for the Determination of Sulphur in Or- 

 ganic Compounds, by Combustion with Oxygen Gas and 

 Peroxide of Lead. By C. M. Warren. 



In my former communication " On a Process of Organic Elementary 

 Analysis by Combustion in a Stream of Oxygen Gas," * I treated ex- 

 clusively of the determination of carbon and hydrogen in volatile liquid 

 hydrocarbons, — my experiments up to that time having been confined 

 to the analysis of substances of this class. It was my intention, how- 

 ever, to have applied the process before this to other classes of bodies, 

 and especially to have tested its applicability, with suitable modifica- 

 tions, for the analysis of organic substances containing other elements. 



Other work with which I was then occupied, and to which this pro- 

 cess was only incidental, as already stated in the paper referred to, has 

 prevented me from extending the research beyond the requirements of 

 my other investigations. 



* Proceedings of the American Academy, 1864, p. 251. 



