1909.] NATURAL SCIENCES OF PHILADELPHIA. 581 



Mr. Van Sickel devised a new form of opaque mounting slide, and, 

 at the request of members, several thousand were manufactured 

 from his design for general use. 



Mr. Shulze discovered several new forms of Diatomacece in the Bar- 

 bacloes deposit, one of which has been named and described by Mr. 

 Boyer in the Proceedings. 



Mr. Schumo presented various specimens and gave a talk on Mosses, 

 illustrated with lantern slides. 



Communications were also made by Mr. Bilgram on Myxomycetes; 

 Dr. Owen, on salt solutions; Mr. Da vies, on various vegetable prepara- 

 tions; Mr. Van Sickel, on the crystallization of Platinum; Mr. Boyer, 

 on local diatoms, and by Messrs. Keeley, Rothermel, Ray and other 

 members, on miscellaneous subjects. 



An increased interest is apparent in the preparation of specimens 

 and in the manipulation of the microscope and much original work 

 has been accomplished during the year. 



The officers for the year 1910 are as follows: 



Director, 

 Vice-Director, 

 Recorder, 



Corresponding Seer eta ry, 

 Treasurer, . 

 Conservator, 



J. Cheston Morris, M.D. 

 T. Chalkley Palmer. 

 Charles S. Boyer. 

 Silas L. Schumo. 

 Thomas S. Stewart, M.D. 

 F. J. Keeley. 

 Charles S. Boyer, 



Recorder. 



Entomological Section. 



The usual meetings of this Section have been held with an average 

 attendance of nine persons. During the year upwards of 3,000 speci- 

 mens have been added to the collection. Eight new cases and 158 

 boxes have been purchased to accommodate the growth of the cabinet. 

 The orders Hemiptera and Neuroptera and the family Tenthredinidse 

 of the order Hymenoptera have been rearranged. Part of the American 

 Rhopalocera has been transferred to new cases. The publications of 

 the Section have been successfully continued. One member and 

 two associates have been elected. 



At a meeting held December 23 the following officers were elected: 



