38 EEPORT OP NATIONAL MUSEUM, 1911. 



G. C. Champion, about 220 calandrids and cossonids from Central 

 America. 



The general work on the collection of insects, which had been 

 moved to the new building the year previous, consisted mainly in the 

 transfer of specimens to drawers and cases of the standard equip- 

 ment. This work was completed for the lepidoptera, and the cards 

 for the index required to locate material in this order were mostly 

 written. Considerable progress was also made in the corresponding 

 reinstallation of the hymenoptera, hemiptera, and coleoptera. 



The only investigations conducted by members of the staff consisted 

 of certain detached studies indicated by the published papers cited 

 in the bibliography. Dr. Arthur Neiva, of the Instituto Oswaldo 

 Cruz, Rio de Janeiro, Brazil, continued in researches on mosquitoes. 

 Among other entomologists who consulted the collections were Dr. E. 

 Bergroth, of Fitchburg, Massachusetts; Prof. E. S. G. Titus, of 

 Logan, Utah; Mr. J. R. de la Torre Bueno, of White Plains, New 

 York; Mr. "William Beutenmuller, of the American Museum of 

 Natural History ; Mr. John D. Sherman, jr., of Brooklyn, New York ; 

 Mr. William T. Davis, of New Brighton, New York; Mr. A. B. 

 Gahan, of College Park, Maryland; Mr. A. A. Girault, of Urbana, 

 Illinois ; and Prof. T. D. A. Cockerell. 



Mollushs. — The principal accession of the year consisted of the col- 

 lection made in Alaska by Dr. William H. Dall while in the field for 

 the United States Coast and Geodetic Survey and later for the 

 United States Geological Survey, between 1871 and 1899. Compris- 

 ing about 15,000 lots and 50,000 specimens of shells, both dry and 

 alcoholic, it is undoubtedly the largest collection of the mollusks of 

 moderate depths of water ever assembled from that region, and, 

 although it has been in the custody of the Museum for some years, it 

 had never been officially transferred. Doctor Dall hopes to make it, 

 together with the collections of the Bureau of Fisheries steamer 

 Albatross from deep water in the same region, the basis of a com- 

 prehensive report on the marine mollusk fauna of Alaska and the 

 adjacent parts of the northwest coast of America. The second 

 accession in point of size and importance was received from the 

 Imperial University of Tokyo, through Prof. E. S. Morse, of Salem, 

 Massachusetts, on condition that a named series be sent to the uni- 

 versity. The part to be retained by the Museum will, it is estimated, 

 comprise about 12,000 specimens. The shells are nearly all shore or 

 shallow water species, many of which have not been represented in the 

 Museum's series from Japan, and will admirably supplement the col- 

 lection made in deeper water by the Albatross during its visit to the 

 Japanese coast. A very interesting series of fresh-water shells from 

 the upper waters of the Nile was contained in the final shipment 

 from the Smithsonian African Expedition. 



