580 PROCEEDINGS OF THE ACADEMY OF [NOV.^ 



November 4. 

 Mr. Charles Morris in the Chair. 



Nine persons present. 



The presentation of a paper entitled " Contribution to the x\natomy 

 of the Ilysiidae," by Joseph C. Thompson, Surgeon U. S. N., was 

 reported. 



The death of Philip R. Uhler, a member, October 21, was 

 announced. 



November 18. 

 The President, Samuel G. Dixon, M.D., LL.D., in the Chair. 



The Publication Committee reported the reception of papers 

 under the following titles: — • 



" On the Orthoptera found on the Florida Keys and in extreme 

 Southern Florida. II." By James A. G. Rehn and Morgan Hebard 

 (November 7). 



"Notes on some Costa Rica Arachnida." By Nathan Banks 

 (November 14). 



The Chair announced the death of Prof. Arnim Balzer, a corre- 

 spondent, November 4, 1913. 



The following were elected members: 

 Harvey Stamp, M.D. 

 Herbert H. Gushing, M.D. 

 J. Ewing Mears, M.D. 



The meeting was held in association with the Biological and 

 Microscopical Section. 



The Collecting and Preparation of Diatoms. — Mr. T. Chalkley 

 Palmer, prefacing his remarks on collection and preparation of 

 diatoms, deplored the threatened extinction of the amateur, especially 

 in branches of science involving the use of the microscope. He men- 



