338 PROCEEDINGS OF THE ACADEMY OP [1884. 



especially during the recent meeting of the American and British 

 Association for the Advancement of Science. I have been much 

 gratified to hear expressions of admiration of the collection, 

 many of the specimens being pronounced unique in their charac- 

 ter, and not represented in the museums of Europe. 



In conclusion, I embrace the opportunity of thanking those of 

 my friends who have expressed a warm interest in my work, and 

 have aided me with valuable suggestions. I take the liberty 

 of making special mention of Dr. Leidy, Mr. W. W. Jefferis, 

 Clarence S. Bement, and Dr. W. S. W. Ruschenberger. 

 Yery respectfully submitted, 



Jacob Binder, 



Curator. 



REPORT OF THE MICROSCOPICAL AND BIOLOGICAL 



SECTION. 



During the past year, eighteen stated meetings and one public 

 exhibition were held. 



The average attendance of members was about fifteen. 



At the exhibition given in September to the visiting members 

 of the American Association for the Advancement of Science, a 

 very large audience was present, and the display of microscopes 

 and objects excelled all previous ones, both in number and in 

 scientific importance. 



During the year. Dr. N. A. Randolph, Dr. Benjamin Sharp, 

 and Joseph Mellor were elected members. 



Edward S. Campbell, Hugo Bilgrim, and Sara Gwendolen 

 Poulke were announced as contributors. , 



Dr. J. H. Simes and Prof. H. C. Lewis resigned membership. 



Dr. Robert E. Rogers died. 



Among the more important contributions b}' members during 

 the year, were : — 



A lecture, December IT, 1883, by Dr. M. B. Hartzell. Subject 

 — The Bacteria. 



February 4, 1884, by Dr. Benjamin Sharp. Subject — Section 

 Cutting. 



March 11, by Mr. W. N. Lockington. Subject— The Fishes of 

 North America and the West Coast. 



April 21, by Dr. Sharp. Subject— The Eye of the Inverte- 

 brates. 



