542 PROCEEDINGS OF THE ACADEMY OF [1899. 



The communications of importance made to the Section were 

 by Mr. F. J. Keeley, on the spectrum analysis of diatomine, on a 

 Holothurian Parasite by Dr. J. C. Morris, and on observations of 

 various material contributed by Mr. S. A. Schumo, Mr. John A. 

 Shulze and Mr. Lewis Woolman. 



The following officers were elected for the ensuing year: 

 Director, .... J. Chestou Morris, M.D. 



Vice- Director, . 

 Treasurer, 

 Conservator, 

 Corresponding Secretary, 



T. Chalkley Palm.er. 

 Lewis Woolman. 

 F. J. Keeley. 

 John G. Rothermel. 



Recorder, . . . . C. S. Boyer. 



Charles S. Boyer, 



Recorder. 



REPORT OF THE CONCHOLOGICAL SECTION. 



The main activity of the Conchological Section, as in former 

 years, has been expended upon the continuation of the Manual of 

 Conchology, which has now reached the thirteenth volume of the 

 second series. The Conservator has been chiefly occupied during 

 the year with the revision of the family Bulimulidai, the work on 

 American species being now completed, the specimens relabelled 

 and returned to the museum. 



Various changes have been made in the museum, the principal 

 one being the removal of the land shells of the United States 

 (excepting Succinea and Pupa) from the gallery to the study 

 room on the library floor. This collection was formerly crowded 

 into thirty-six drawers under the cases of fresh-water shell?, and 

 had long since outgrown the space available. It now occupies 

 eighty -one drawers, leaving the space formerly used for the expan- 

 sion of the fresh-water shells. 



The accessions to the museum number about 4,000 trays and 

 bottles, including many species new to science, as well as a larger 

 number new to our collection. None of this material has been 

 purchased, and but an inconsiderable part was obtained in ex- 

 change, nearly the whole having been sent by correspondents of the 

 Section in America and abroad for identification, or with the under- 

 standing that it be worked up, or to further the work in progress 



