1897.] NATURAL SCIENCES OF PHILADELPHIA. 547 



which are at present being monographed in the Manual of Conchol- 

 ogy ; the collection of Helices having extended over the cases for- 

 merly containing Bulimi. 



Other museum work worthy of note has been a thorough revision 

 of the Ampullariidse, Pinnidoe, Pectunculus and Amphidromus of 

 the collection, by Miss J. E. Letson, and a revision of the Arionidie 

 and Cylindrellidse by Mr. E. G. Vanatta and the Conservator. 



The recent and fossil Scaphopoda of our collection have been 

 studied by the Director and Conservator of the Section, and the 

 specimens relabelled ; the results of the study being embodied in a 

 monograph of the group in the Manual of Conchology. 



The entire collection of alcoholic mollusks has been transferred 

 from the mollusk gallery wall cases, to cases erected in the basement 

 of the new building, where they have been arranged in systematic 

 order. 



The routine work of identifying specimens for correspondents has 

 as usual occupied considerable time; but as in former years a large 

 number of species new to science have resulted from the time thus 

 expended. 1,505 lots of specimens from 72 persons have been 

 received, labelled and placed in the collection during the year. A 

 detailed list of accessions will be found in " Addition to the 

 Museum." 



The officers of the Section are as follows : 



Director, ...... Benjamin Sharp, M. D. 



Vice- Director, 

 Recorder and, Librarian, 

 Corresponding Secretary, 

 Treasurer, . 



. John Ford. 

 . Edw. J. Nolan, M. D. 

 . Chas. W. Johnson. 

 . S. Raymond Roberts. 

 Respectfully submitted, 



Henry A. Pilsbry, 



Conservator. 



REPORT OF THE ENTOMOLOGICAL SECTION. 



Six meetings has been held during the present year. The attend- 

 ance has been good and many interesting and valuable verbal com- 

 munications have been made. The year has been an eventful one 

 in the history of the Section. More commodious quarters have been 

 occupied and work in all of the orders of insects has been consequ- 

 ently stimulated. The collections are in better condition than ever 



