14 STUDY COLLECTIONS 



Archaeology. In archaeology there is a Large type series of stone objects 

 from the various States of the Union. Full collections from excavated 

 sites in British Columbia, Washington State, New York State, Kentucky, 



Arizona and New Mexico are here, together with a special series i'roni the 

 Trenton Valley, There is much material from Mexico, Pern and Bolivia. 



The human skeleton material is chiefly from western States and South 

 America. Ahont two thousand crania have been classified and made 



available for study. 



Geology and Invertebrate Palaeontology. The study collections com- 

 prise, among other things, the Hitchcock series of rocks illustrating thir- 

 teen geological sections across the States of Vermont and New Hampshire; 



a complete set of duplicate specimens from the United States geological 

 survey of the Fortieth Parallel; a series illustrating the early geological 

 survey of Pennsylvania; a complete typical series of rocks and microscopic 

 thin sections illustrating Rosenbusch's manual of petrography; large series 

 of American rocks; a complete series typifying the rocks encountered in 

 driving the Simplon tunnel, Switzerland; many ores and economic speci- 

 mens. 



Invertebrate Palaeontology. — Great numbers of fossil invertebrates, 

 too numerous and varied to particularize, but representing many of the 

 important groups. 



Ichthyology and Herpetology. — Ichthyology. — The collection of fishes 

 comprises about 7,000 catalogued specimens, preserved in alcohol and 

 kept in tanks and jars. 



The fossil fish collection is one of the largest, if not the largest, in Amer- 

 ica, comprising about 10,000 catalogued specimens; it includes the New- 

 berry, the Cope and several smaller collections. 



Herpetology. — The collection of frogs, salamanders and reptiles 

 numbers 9,000 specimens. 



Invertebrate Zoology. — General Invertebrates. — About 60,000 speci- 

 mens of protozoans, sponges, polyps, starfishes, sea-urchins, worms, crusta- 

 ceans, spiders, myriapods and chordates. 



Insects. — (a) Local collection comprising insects known within fifty 

 miles of Xew York City, (b) General collection including more than 

 500,000 specimens, among them the types of many species. 



Shells. — The chief Molluscan collections of the Museum, exclusive 

 of fossils. About 15,000 species are represented, comprised for the most 

 part of the Jay and Haines collections. 



Mammalogy and Ornithology. — MAMMALOGY. — The study collection of 

 mammals contains about 25,000 skins, skulls and skeletons. It is especially 

 rich in South American forms. Mexico and the Arctic are well represented; 

 from the latter region there is a large and unique series of the beautiful 

 white Peary's caribou and of the Greenland muskox, comprising about 150 

 specimens. The collection of whales is likewise noteworthy. 



