1881.] natural sciences op philadelphia. 415 



August 2. 

 The President, Dr. Ruschenberger, in the chair. 

 Eight persons present. 



A paper entitled " Remarks on the Mollnscan Genera Hippagus, 

 Verticordia and Pecchiola," by Angelo Heilprin, was presented 

 for publication. 



August 9. 

 The President, Dr. Ruschenberger, in the chair. 

 Eleven persons present. 



August 16. 

 The President, Dr. Ruschenberger, in the chair. 

 Nine persons present. 



August 23. 

 The President, Dr. Ruschenberger, in the chair. 

 Nine jDersons present. 

 The death of Mr. John Welsh, Jr., a member, was announced. 



August 30. 

 The President, Dr. Ruschenberger, in the chair. 

 Eight persons present. 

 The death of Mr. Robert Kilvington, a member, was announced. 



The following were ordered to be printed : — 



28 



