1908.1 NATURAL SCIENCES OF PHILADELPHIA. 157 



May 5. ' 



Arthur Erwin Brown, ScD., Vice-President, in the Chaii-. 



Thirty-four persons present. 



On the nomination of the Council, Profs. Henry F. Osborn, 

 Amos P. Brown, Richard A. F. Penrose, Jr., Frederick Prime and the 

 President of the Academy were appointed on the Hayden ^Memorial 

 Committee. 



The death of Henry B. Aledlicott, a Correspondent, April 6, 1905, 

 was reported. 



Dr. Spencer Trotter made a communication on points in the 

 anatomy of the Apes, special attention being given to divergencies in 

 the musculature. (No abstract.) 



May 19. 



Arthur Erwin Brown, Sc.D., Mce-President, in the Chair, 



Thirty persons present. 



John W. Harshberger, Ph.D., made a communication on the geo- 

 graphical study of bud opening in connection with isothennal lines. 

 (No abstract.) 



