1901.] NATURAL SCIENCES OF PHILADELPHIA. 343 



" New Mollusea from Japan and the Loo Choo Islands, " by 

 Henry A. Pilsbry. 



" A Peculiar Condition of w CEdogonium," by Ida A. Keller. 



" Crystalline and Crystalloidal Substances and their Relation 

 to Plant Structure," by Henry Kraemer. 



JUNE 18. 

 Mr. ARTHUR ERWIN BROWN, Vice- President, in the Chair. 



Ten persons present. 



Papers under the following titles were presented for publication ; 

 " The Acrididse, Tettigonidse and Gryllidse Collected by Dr. A. 

 Donaldson Smith in Northeast Africa," by James A. G. Rehn. 



JUNE 25. 

 Mr. ARTHUR ERWIN BROWN, Vice-President, in the Chair. 



Nine persons present. 



A paper entitled " The Nasal Passages of the Florida Alliga- 

 tor, " by A. M. Reese, was presented for publication. 



Henry Kraemer was elected a member. 

 The following were ordered to be printed : 



