1919.1 NATURAL SCIENCES OF PHILADELPHIA. 121 



April 15. 



The President, John Cadwalader, A.M., LL.D., in the Chair. 



Forty persons present. 



The deaths of David Jayne Bullock, a member, March 19, 1919, 

 and Frederick D. Godman, a correspondent, February 19, 1919. 



Dr. John W. Harshberger made a communication on "Slope 

 Exposure and the Distribution of Plants in Eastern Pennsylvania." 

 (No abstract.) 



Edgar Fahs Smith, Ph.D., LL.D., was elected a member. 



The following were ordered to be printed: 



