1902.] NATURAL SCIENCES OF PHILADELPHIA, 173 



April 1. 

 Mr. Charles Morris iu the Chair. 



Twelve persons present. 



Papers under the following titles were presented for publication : 

 "Two Diseases of the "White Cedar, ' ' by J. W. Harshberger, Ph. D. 

 ■" A Kevision of the Genus Mormoops," by James A. G. Rehn. 



April 8. 

 Mr. Benjamin Smith Lyman in the Chair. 



Eight persons present. 



The death of Charles G. Sower, a member, March 22, was an- 

 nounced. 



April 15. 



jNIr. Charles Morris in the Chair. 



Eighteen 2)ersous present- 

 Papers under the following titles were presented for publication : 

 '*^0n Phylogenetic Classification," by Thomas H. Mont- 

 gomery, Jr. 



" On the Localities of A. Adanw' Ja^ianese Helicidie, " by 

 Heniy A. Pilsbry. 



