636 proceedings of the academy of [dec, 



Report of the Department of Mollusca. 



The rearrangement of the general collection in exhibition cases has 

 been almost completed, table-cases of gastropods having been worked 

 over during the year. Considerable time has been given by Mr. 

 Vanatta to the determination and description of Hawaiian mollusks 

 sent by Mr. D. Thaanum, of Hilo, Hawaii, and to the work of picking 

 out and assorting upwards of 500 trays of shells from material gathered 

 by the Curator last year in the Florida Keys. Large quantities of 

 leaves and forest debris, gathered by Mr. C. B. Moore, have also been 

 picked over, and much valuable material, especially of very small 

 mollusks, obtained. 



Mr. Y. Hirase has continued to send Japanese and Formosan mater- 

 ial; his latest sendings contain Korean mollusks, which hitherto have 

 been almost unknown. About 100 new species have been described 

 from this source during the year. 



Other valuable accessions are a series of marine shells from the Great 

 Barrier Reef, Australia, including cotypes of 19 new species, from 

 Charles Hedley. A collection from northeastern Mexico, from A. A. 

 Hinkley. A series of Irish slugs from Dr. R. F. Scharff, and many 

 smaller accessions from numerous donors. A large part of this material 

 has been worked up, and papers published thereon. The time of the 

 special Curator has been largely occupied in the preparation of the 

 Manual of Conchology, in which the families Oleacinidce and Ferns- 

 sacidce have been described. 



H. A. PiLSBRY, 



Special Curator, Dept. of Mollusca. 



REPORTS OF THE SECTIONS. 



The Biological and Microscopical Section. 



The membership of the Section has changed but little during the 

 year. Nine regular and several informal meetings have been held. 

 On March 30, the fiftieth anniversary of the founding of the Biological 

 and Microscopical Section was observed by a banquet held in the 

 Section Room, at which were present regular and former members and 

 the officers of the Academy. The Director, Dr. J. Cheston Morris, 

 presided, and addresses were made by Dr. Samuel G. Dixon, Dr. 

 George A. Piersol, Dr. Arthur E. Brown, Mr. Witmer Stone, Dr. Henry 

 Skinner, Dr. James Tyson, Dr. Henry A. Pilsbry, Mr. F. J. Keeley and 

 Mr. C. S. Boyer. 



