REPORT OF ASSISTANT SECRETARY. 19 



Survey, was received at the National Museum in July, 1891, and was 

 immediately placed upon exhibition. This is the tirst installment in 

 the Museum of the official collections of Professor Marsh. The speci- 

 mens have l>een well catalogued and arranged by the assistant curator. 

 Mr. F. A. Lucas. Another valuable collection, sent from New Haven 

 by the honorary curator in 1886, is still in storage, on account of lack 

 of room in the exhibition hall. Professor Marsh is now preparing two 

 memoirs, containing a full description of the more important specimens 

 lately deposited in the Museum. During the year, 1,124 catalogue en- 

 tries were made, and about 1,001 specimens were added to the collec- 

 tion. 



MOLLUSKS (INCLUDING TERTIARY INVERTEBRATE FOSSILS). 



Mr. William 11. Dall, honorary curator, reports that a large amount 

 of time has been devoted to sorting, naming, cataloguing, and storing 

 the duplicate shells. The greater portion of them is now packed in 

 small boxes in the storage room, each specimen bearing its catalogue- 

 number. A card-catalogue makes it possible to refer at a moment's 

 notice to any duplicates in the collection. It has also been found nec- 

 essary to arrange and catalogue the drawings of shells. The report 

 on the "Later Tertiary of the United States,*' though in type, will be 

 issued a few days too late to appear in the Bibliography of this year. 

 Considerable labor has been bestowed on the continuation of the report 

 on the "Florida Tertiary MoUusks," for the Wagner Institute of Phila- 

 delphia. The most valuable contribution during the year was a collec- 

 tion of shells from St. Helena, donated by ('apt. W. H. Turton, of the 

 Royal Engineers, Chatham, England. Mr. Rounsevelle Wilclman, 

 United States consul at Singapore, sent a collection of shells repre- 

 senting the principal marine forms of that vicinity. The number of 

 specimens added during the year was (',l > l > .~>. the catalogue entries being 

 2,546. 



Prof. C. V. Riley, honorary curator, reports that a large amount 

 of time has been devoted to the study collections in the laboratory, 

 although important additions have been made to the systematic exhibi- 

 tion series. Among the more important accessions are: 400 specimens 

 of Heteroptera, received from Prof. A. L. Montandon, Bucharest. Rouma- 

 nian a collection of Californian insects, from Mr. I). W. Coquillet, of 

 Los Angeles; material collected by Mr. A. Koebele during the Death 

 Valley expedition, in 1891, from the Department of Agriculture: 1,900 

 specimens of Lepidoptera (native and exotic) from Mr. (i. Beyer, of New 

 York; and 57 specimens, embracing L'7 species, mostly Coleoptera, from 

 Mr. Charles Dury, of Cincinnati. Ohio. Mr. Dury has also expressed 

 his willingness to contribute more material, and to aid in every way pos- 

 sible in increasing the value of the collection. In September. 1891, Prof. 



