1895.] NATURAL, SCIENCES OF PHILADELPHIA. 2fll 



April 2, 1895. 



The President, General Wistar, in the Chair. 



Forty-six persons present. 



Mr. Henry A. Pilsbry was elected a Curator for the unexpired 

 term of the late Dr. W. S. W. Ruschenberger. 



April 9. 



The President, General Wistar, in the Chair. 



Twenty-four persons present. 



The following minute was presented from the Biological and Mi- 

 croscopical Section and unanimously adopted : 



JOHN A. RYDER, Ph. D. 



In view of the death of our colleague, Dr. John A. Ryder, it is 

 the sense of the Biological and Microscopical Section of the Academy 

 of Natural Sciences of Philadelphia that a minute be recorded to 

 express the great regret of the Section and its deep appreciation of 

 the loss it has sustained in his untimely decease. 



Dr. Ryder was elected a member of the Academy of Natural Sciences 

 of Philadelphia January 29, 1878, and shortly after that date began to 

 attend the meetings of the Section and frequently made interesting com- 

 munications. He became a member of the Section November 15, 1886, 

 and at the annual meeting in the same year he was chosen Director, 

 which office he held until the close of. 1888. Many of his commu- 

 nications made before the Section were verbal and were, to a large 

 extent, a resume or report of his own current work, and also of that 

 of other investigators at home and abroad, who were working in 

 lines similar to his own. The subjects treated in these communica- 

 tions included myology, embryology, histology, microscopic tech- 

 nique, malacology, comparative anatomy and kindred biological 

 studies. Most of these communications afterward appeared in print 

 in the Proceedings of the Academy or elsewhere. 

 16 



