1905.] NATURAL SCIENCES OF PHILADELPHIA. 923 



A number of mammals received from the Zoological Society of Phila- 

 delphia have been mounted or prepared as study specimens in the 

 Taxidermical department, notable among the former being a bull 

 American Bison, a Wild Boar and a Bubaline Antelope. 



Besides the services rendered by the Museum staff and the students 

 of the Jessup Fund, the Curators are indebted to Dr. P. P. Calvert, 

 Messrs. Erich Daecke, H. W. Wenzel, H. L. Yiereck and E. T. Cresson, 

 Jr., for aid in the Entomological department, and Mr. S. S. Van Pelt in 

 the Herbarium. 



The Anti-Tuberculosis Society, Philadelphia Botanical Club, Dela- 

 ware Valley Ornithological Club and the Entomological Club of the 

 American Association for the Advancement of Science have held 

 meetings at the Academy during the year. At the time of the meeting 

 of the latter body in Philadelphia a general meeting of entomologists 

 was held at the Academy with a view to forming a national organiza- 

 tion, and a reception was given by the Botanical Section to the visiting 

 botanists. 



The collections have been constantly studied by visiting specialists, 

 and during the year material has been loaned to Walter K. Fisher, E. 

 L. Morris, Miss H. Richardson, Carlton R. Ball, Paul Bartch, C. V. 

 Piper, E. W. Nelson, F. C. Paulmier, W. H. Osgood, E. B. Williamson, 

 H. F. Osborn, R. L. Ditmars, H. L. Clark, F. C. Baker, H. C. Ober- 

 holser, G. S. Miller and A. Ortmann. 



Samuel G. Dixon, 



Curator. 



Report of the Special Curator of the Department of Mollusca. 



The collections of mollusca remain in good order, through from the 

 crowded condition of the department the specimens of some groups are 

 not as accessible as we would desire. The installation of a series of 

 storage cases has given room for a rearrangement of the fresh-water 

 mussels, which have been reclassified in accordance with Mr. Simpson's 

 recent synopis of the group, and now occupy about 850 square feet of 

 space. Several extensive families of small land snails have been 

 removed from the exhibition series and rearranged in storage cases, 

 leaving merely a few t3^pical species to represent them in the public 

 exhibit. The series of American land snails, rearranged and expanded, 

 is in storage cases, occupying about 600 square feet. The rapid growth 

 of the collection has continued. Mr. Y. Hirase, of Kyoto, has con- 

 tinued his sendings of Japanese mollusca, comprising many new forms. 



