1889.] NATURAL SCIENCES OF PHILADELPHIA. 433 



In addition to the above, many interesting communications were 

 made at the joint meetings of the Academy and the Section. 

 The officers elected for the ensuing year were : — 



Director, .... Harold Wingate. 



Vice Director, . . . John C. Wilson. 



Recorder, .... Dr. Robert J. Hess. 



Treasurer, .... Dr. Isaac Norris, Jr. 



Conservator, . . . Charles P. Perot. 



Corresponding Sec. . . Dr. Charles Sehreffer. 



Very respectfully submitted, 



Robert J. Hess, M. D., 



Recorder. 



REPORT OF THE CONCHOLOGICAL SECTION. 



The Recorder of the Conchological Section reports that the more 

 important work transacted during the year has been the regular 

 issue of the Manual of Conchology and the arrangement of the cab- 

 inet in connection with the necessary study of material as the several 

 families have been reached. Four numbers of each of the two series 

 of the Manual have been published, the parts of the marine series 

 embracing the Turbinidse, Delphmulidse and portion of the Tro- 

 chidse, while the parts of the second series devoted to the land mollusca 

 treat of the Helicidse of the West Indies and South America. The 

 former consists of 320 pages of text and 75 plates while the latter 

 includes 279 pages and 70 plates. The Section has pleasure in ac- 

 knowledging the efficient services of the editor, Mr. Henry A. Pils- 

 bry, to whom belongs the credit of maintaining the standard of ex- 

 cellence established by Mr. Tryon. It is gratifying to be able to 

 report that the work is more than self-supporting. The meetings 

 held in connection with the Academy, in harmony with the sugges- 

 tion adopted by the latter last spring, have been rendered interest- 

 ing by communications from Messrs. Pilsbry, Baker, Heilprin, Ford, 

 Campbell and U. C. Smith. At the meeting held Dec. 5th, the fol- 

 lowing officers were elected to serve during the ensuing year : — 



Director, .... W. S. W. Ruschenberger. 



Vice Director, . . . John Ford. 



Recorder, .... Edward J. Nolan. 



Secretary, . . . . J. H. Redfield. 

 29 



