634 PROCEEDINGS OF THE ACADEMY OF [DeC, 



The collection of Fishes consists of about 40,000 specimens, and 

 contains the historic Bonaparte collection, the Cope collection and 

 also those of Hauxwell, Orton, H. H. Smith, Harrison and Hiller, 

 Rijgersma and others. There are many types of Cope, Abbott and 

 Fowler, as well as cotypes of Girard's Mexican boundary fishes. 



The Insects number about 369,000 pinned specimens divided as 

 follows : 



The most notable special collections are the Horn and Wilt collec- 

 tions of Coleoptera; the Martindale and Skinner collections of Lepidop- 

 tera; the Calvert collection of Neuroptera (on deposit); the Osten- 

 saken cotypes of Diptera; the Cresson and Bassett collections of 

 Hymenoptera and the Henry C, McCook collection of Insect Archi- 

 tecture. 



The collection of Mollusks numbers over 100,000 trays and more 

 than 1,500,000 specimens. Of this number 40,000 trays have been 

 catalogued and numbered as new accessions since 1893. The older 

 collection consists of the original collection of the Academy, begun 

 about 1817 by Thomas Say; the Robert Swift collection of West Indian 

 shells, about 10,000 specimens; the A. D. Brown collection of land 

 shells, bequeathed to the Academy in 1887, 5,400 trays. About 

 10,000 trays of these collections have been catalogued and numbered. 



The alcoholic collection of Mollusks consists of about 6,000 lots, 

 probably over 75,000 individual specimens. The number of types 

 of Say, Conrad, Tryon and others is not known, but since the year 

 1901, 925 types have been described from the new material received. 



Other invertebrates number about 11,500 specimens, of which 4,000 

 are Crustacea and 2,800 worms. The most important collections are 

 the Guerin collection of Crustacea, the H. C. Chapman collection of 

 Marine Invertebrates from Naples and the Edward Potts collection of 

 fresh-water sponges. 



The Herbarium contains about 584,000 specimens of flowering plants 

 and ferns, comprising among others the collections of Muhlenberg 



