1899.] NATURAL SCIENCES OF PHILADELPHIA. 465 



October 3. 



Mr. Uselma C. Smith in the Chair. 



Nineteen persons present. 



The deaths of Carl Edelheim and W. G. A. Bonwill, members, 

 were announced. 



October 10. 

 The President, Samuel G. Dixon, M.D. , in the Chair. 



Thirty-three persons present. 



Papers under the following titles were presented for publication : 



" On the Summer Molting Plumage of Certain Ducks," by 

 Witmer Stone. 



" Notes on Chilean Fishes, with Descriptions of New Species of 

 Sebastodes, ' ' by James Francis Abbott. 



October 17. 

 J. Cheston Morris, M.D., in tiie Chair. 



Twenty-five persons present. 



A paper entitled "A New Species of Thersites," by Henry A. 

 Pilsbry, was presented for publication. 



A paper entitled " Dynamic Evolution, or Fortn as the Result 

 of Motion," by the Rev. W. F. C. Morsel], presented for publica- 

 tion April 11, 1899, was withdrawn by the author. 



October 24. 



The President, Samuel G. Dixon, M.D., in the Chair. 



Twenty-four persons present. 

 30 



