RECORDS OF MEETINGS. 



One thousand and thirty-seventh Meeting. 



October 14, 1914. — Stated Meeting. 



The Academy met at its House. 



The President in the Chair. 



There were one hundred and twenty-five Fellows and Ladies 

 present. 



The President announced that the Council had appointed 

 Professor H. W. Tyler acting Corresponding Secretary during the 

 absence of Professor Hall, and that Professor A. G. Webster was 

 appointed to succeed Professor Tyler as Librarian. 



Professor C. R. Cross, Chairman of the Rumford Committee, 

 stated the grounds for the award of the Rumford Medals to Pro- 

 fessor Joel Stebbins, and to Dr. William David Coolidge, in sub- 

 stance as follows: 



"At its Annual Meeting of May 14, 1913, the Academy voted 

 on the recommendation of the Rumford Committee to award the 

 Rumford Premium to Professor Joel Stebbins of the University of 

 Illinois, for his development of the selenium photometer and its 

 application to astronomical problems. 



" Considerably over thirty years ago, the remarkable discovery 

 was made by Bidwell that the substance selenium under certain 

 conditions, sustained a remarkable lowering of its electrical re- 

 sistance when subjected to the action of light so that if a selenium 

 'cell' as it was called, was placed in circuit with a battery and 

 galvanometer, a marked deflection of the galvanometer would be 

 observed if the light from a lamp or other source of illumination 

 was thrown upon the cell. 



" Very naturally the idea suggested itself that the selenium cell 



