iv MINUTES. 



Councillors. 

 (To serve for three years.) 

 Henry Fairfield Osborn, 

 Elihu Thomson, 

 Samuel M. Vauclain, 

 Henry B. Fine. 



Stated Meeting, February 2, 1917. 



William W. Keen, M.D., LL.D., President, in the Chair. 



The decease was announced of Prof. Paul Leroy-Beaulieu in 

 December, 1916. 



The following papers were read : 

 " On Some Aspects of Costa Rica and its Natural History," 

 by Professor Philip Calvert. (Introduced by Prof. Henry 

 Kraemer.) 

 " The Geology of Sergipe and Northeastern Bahia, Brail," by 

 Mr. Ralph H. Soper. (Communicated by Prof. John C. 

 Branner.) 



Stated Meeting, March 2, igij. 



William W. Keen, M.D., LL.D., President, in the Chair. 



A communication was received from the Societe Imperiale Russe 

 de Mineralogie, announcing the centenary of its foundation. 



Dr. Francis G. Benedict read a paper on " Human Energy and 

 Food Requirements." 



Stated General Meeting, April 12, /j and 14, 1917. 



Thursday, April 12. 



Opening Session — 2 o'clock. 



William W. Keen, M.D., LL.D., President, in the Chair. 



The decease of the following members was announced : 

 Prof. Jean Gaston Darboux, at Paris, in February, 1917, set. 74. 

 Ambrose E. Lehman, at Philadelphia, on April 5, 1917, set. 65. 

 Hon. Richard Olney, at Boston, on April 8, 1917, ast. 82. 



