RECORDS OF MEETINGS. 453 



Campbell, A. L. Clark, F. Daniels, P. F. Gaehr, R. C. Gibbs, H. L. 

 Howes, L. R. Ingersoll, N. A. Kent, F. G. Keyes, C. A. Kraus, C. L. 

 Norton, F. Palmer, Jr., J. A. Parkhurst, H. M. Randall, T. W. 

 Richards, F. A. Saunders, W. O. Sawtelle, B. J. Spence, L. S. E. 

 Thompson, O. Tugman, F. W. Very, A. G. Webster, D. L. Webster. 



The following papers in the Proceedings have been published with 

 aid from the Rumford Fund since the presentation of the last Report: 



Awards of the Premium and Grants for Research in Light and Heat. 

 Charles R. Cross, Vol. 56, No. 10. 



The Grid Structure in Echelon Spectrum Lines. Norton A. Kent 

 and Lucien B. Taylor, Vol. 57, No. 1. 



The Efifect of Pressure on the Thermal Conductivity of Metals. 

 P. W. Bridgman, Vol. 57, No.^5. 



The following papers have been approved for publication : 



The Atmospheric Attenuation of Ultra-Violet Light, Dr. E. L. 

 Schaeffer. 



On the Ratio of the Calorie at 73° to that at 20°, Professor Arnold 

 Romberg. 



The Heat of Vaporization of Mercury, Professor F. W. Loomis. 



The Joule-Thomson Effect in Air, P. H. Royster. 



For nearly twenty-five years Professor Charles R. Cross acted as 

 Chairman of the Rumford Committee. The members of the Com- 

 mittee wish to express their appreciation of his untiring devotion and 

 to record their deep regret at his loss. 



Theodore Lyman, Chairman. 

 May 10, 1922. 



Report of the C. M. Warren Committee. 



The Committee had at its disposal at the end of the fiscal year in 

 March 1921, $4,501.03. During the year ending March 31, 1922, 

 grants to the amount of $2,875 were made. The balance on that date 

 was $1,626.03. 



Since the last annual report awards have been made as follows: 

 To Professor Henry Fay, Massachusetts Institute of Technology, 

 $200 was granted June 1, 1921, for a research on the influence of nitro- 

 gen upon the case hardening of steels and the study of the heat treat- 

 ment of beta-brasses. 



