RECORDS OF MEETINGS. 729 



hundred and forty-three. The number of volumes added includes two" 

 hundred and seventy-seven received by gift and exchange, thirty-six 

 purchased by the General Fund, and fourteen by the Rumford Fund. 



Eighty-five books have been borrowed from the library up to the 

 time the stack building was closed, March 25th. 



The expenses charged to the library are as follows : — Miscellaneous, 

 S371.95 (which includes $104.62 for cataloguing) ; Binding, $539.55 

 General, and $69.55 Rumford, Funds ; Periodical subscriptions $483.71 

 General, and $164.34 Rumford, Funds, as the cost of subscriptions and 

 binding. 



The appropriation of $50 from the income of the Rumford Fund 

 plus $68.17, the unexpended balance from last year for Books and bind- 

 ing, was transferred to the account of the appropriation for Periodicals 

 and binding. 



A. Lawrence Rotch, Librarian. 



May 10, 1911. 



Report of the Rumford Committee. 



During the past year the following persons have received grants of 

 the sums specified in aid of researches on light or heat : — 



October 12, 1910. Dr. P. W. Bridgman, of the Jefferson 

 Physical Laboratory, for the continuance of his research on the 

 thermal and optical properties of bodies under extreme pressures, 

 additional, $400 



Professor Charles L. Norton, of the Massachusetts Institute 

 of Technology, for his researches on thermal insulation . . . 400 



January 11, 1911. Professor Joel Stebbins, of the University 

 of Illinois, for the continuance of his researches with the selen- 

 ium photometer, additional, 200 



Professor M. A. RosanofF, of Clark University, for his inves- 

 tigations on the fractional distillation of binary mixtures, 

 additional, 300 



February 8, 1911. Dr. Daniel F. Comstock, of the Massa- 

 chusetts Institute of Technology, for his research on the possi- 

 ble effect of the motion of the source on the velocity of light . 100 



Professor Gilbert N. Lewis, of the Massachusetts Institute of 

 Technology, for his research on the free energy changes in 

 chemical reactions 150 



Professor Robert W. Wood, of the Johns Hopkins University, 

 for his researches on the optical properties of vapors .... 150 



Since the last annual meeting of the Academy, the following papers 



