1905.] NATURAL SCIENCES OF PHILADELPHIA. 691 



October 3. 

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



Twenty-nine persons present. 



The work of the Academy since the last meeting in May was reported 

 on by the Curators, the Librarian and the Secretaries. 



The Chair announced the death, September 18, 1905, of General 

 Isaac J. Wistar, whereupon the following minute was unanimously 

 adopted : 



The Academy desires to record its profound regret at the death of 

 General Isaac Jones Wistar. 



His long service to the Academy as President, Councillor and Chair- 

 man of the Committee on Finance, was coincident from the beginning 

 with the course of active development which has marked its later 

 years, in the advancement of which no movement designed to promote 

 its material welfare, or its usefulness in research, has ever failed to 

 receive earnest support from his forceful energy. Courteous and 

 impartial as the Chairman of its meetings, wise and suggestive as a 

 member of its Council, expert and judicious in controlling its invest- 

 ments, the loss to the Academy of a faithful and efficient officer is 

 felt by its members even less than their personal loss of a genial and 

 welcome associate. 



The Publication Committee reported that papers under the following 

 titles had been offered for publication since the last meeting : 



"The Sphagnum Frog of New Jersey, Rana virgatipes Cope," by 

 Henry W. Fowler (June 1). 



"Diachsea cylindrica, a New Species of Mycetozoa," by Hugo Bil- 

 gram (June 6). 



"Five New Species of Pseudoptamilla from the Pacific Coast of 

 North America," by J. Percy Moore (June 9). 



"Crataegus in Eastern Pennsylvania," by C. S. Sargent (June 20). 



"Notes on Some Hawaiian Achatinellidse and Endodontidse," by 

 H. A. Pilsbry and E. G. Vanatta (July 31). 



"On Two Hawahan Cerithiidse," by H. A. Pilsbry and E. G. Vanatta 

 (August 31). 



"The Plant Formations of the Bermuda Islands," by John W. Harsh- 

 berger, Ph.D. (September 1). 



