768 PROCEEDINGS OF THE AMERICAN ACADEMY. 



sent to Professor St. John for use in connection with his re- 

 searches on Crystal Structure by means of X-Rays .... $500 



To Professor Theodore W. Richards in aid of the pubHcation 

 of Marie's Physical and Chemical data 250 



March 13, 1918. To Professor F. A. Richtmyer in aid of his 

 researches on the' Optical Properties of Thin Films (additional) 500 



To Professor Arthur L. Foley, for his res^rch on the photog- 

 raphy of the electric spark at different periods of its history . 150 



To Dr. Olin Tugman in aid of his research on the Conduc- 

 tivity of thin metal films when exposed to ultra violet light . . 100 



Reports of progress in their several researches have been received 

 from the following persons : — 



Messrs. C. G. Abbot, W. M. Baldwin, R. T. Birge, W. W. Camp- 

 bell, A. L. Clark, D. F. Comstock, H. Crew, F. Daniels, E. B. Frost, 

 R. C. Gibbs, R C. Hayes, H. P. Hollnagel, L. R. Ingersoll, N. A. 

 Kent, L. V. King (research finished), C. A. Kraus, E. Kremers, A. B. 

 Lamb (research finished), C. E. Mendenhall, R. A. Millikan, H. W. 

 Morse (research finished), C. L. Norton, F. Palmer, Jr., J. A. Park- 

 hurst, H. M. Randall (research finished), T. \V. Richards, F. A. 

 Richtmyer, A. St. John, W. 0. Sawtelle, A. W. Smith, F. A. Saunders, 

 ^B. J. Spence, F. W. Very, D. L. Webster. 



Most of these researches have been temporarily suspended because 

 of the engagement of the various grantees in work for the Government. 



The following paper has been published with aid from the Rumford 

 Fund in the Proceedings of the Academy since the last annual meeting: 

 P. W. Bridgman, " Thermo-electromotive Force, Peltier Heat and 

 Thomson Heat under Pressure." Volume 53, No. 4, March, 1918. 



At its meeting of January 9, 1918, it was unanimously voted by the 

 Rumford Committee for the first time and on February 13, 1918, for 

 the second time to recommend to the Academy the award of the 

 Rumford Premium to Theodore Lyman for his researches on Light 

 of very short wave length. 



Professor Lyman, though a member of the Rumford Committee, 

 has been abroad in the service of his country since autumn. 



Charles R. Cross, Chairman. 

 May 8, 1918. 



