1889.] natural sciences of philadelphia. 283 



September 17. 



Mr. Charles Morris in the chair. 



Six persons present. 



A paper entitled " Orcadella opereulata, Wing., a new Myxomy- 

 cete." By Harold Wingate, was presented for publication. 



The death of Dr. Addinell Hewson, a member, was announced. 



September 24. 



The President, Dr. Joseph Leidy, in the chair. 



Twenty-four persons present. 



A paper entitled " On the Taxonomic Value of the Wing Mem- 

 brane and the Terminal Phalanges of the Digit in the Cheiroptera." 

 By Harrison Allen, M. D., was presented for publication. 



The death of Prof. Geo. H.Cook of Burlington, N. J., a corre- 

 spondent, was announced. 



Mr. Thomas Stewardson was elected a member. 



The following were ordered to be printed: — 



