1901.] NATURAL SCIENCES OF PPIILADELPIIIA. 383 



July 2. 



Mr. Charles Morris iu the Chair. 



Seven persons present. 



A paper entitled " The Land Molhisks of Loo Choo Islands," 

 by Henry A. Pilsbry, -was presented for publication. 



July 9. 



Mr. Arthur Erwin Brown, Vice-President, in the Chair. 



Seven persons present. 



A paper entitled ' ' A Study of an Ant, ' ' by Adele M. Fielde, 

 was presented for publication. 



July 16. 

 Mr. Charles Morris in the Chair. 

 Eight persons present . 



Papers under the following titles were presented for publication : 



" Certain Aboriginal Mounds of the Tombigbee River," by 

 Clarence B. Moore. 



" Additions to the Japanese Land Snail Fauna, IV," by 

 Henry A. Pilsbry. 



" The Spermatogenesis of Oniscus asellus Linn., with Special 

 Reference to the History of the Chromatin," by M. Louise 

 Nichols. 



