86 MUSEUM OF COMPARATIVE ZOOLOGY 



dred and fifty drawers; chiefly Paleozoic, but containing some im- 

 portant Mesozoic material from classic localities in Europe, no 

 longer available. 



The brachiopods are represented by a splendid collection, prob- 

 ably third of importance in this country, well balanced in its repre- 

 sentation of American and European material. It occupies about a 

 thousand drawers, and is estimated to contain about two hundred 

 thousand specimens. The gastropods are represented by five hun- 

 dred drawers of material, and at least a hundred and fifty thousand 

 specimens, a large proportion of which are of European origin. The 

 pelecypods are contained in about sixteen hundred drawers, and 

 represent all geological horizons from which pelecypods are obtained, 

 the preponderance of the collection being European. A beginning 

 on the needed additions to the American portion has recently come 

 to us by the presentation of a large collection from the Cretaceous of 

 Texas by Mr. Dilworth Hager. The cephalopod collection is about 

 the same size as that of pelecypods, and is of especial importance be- 

 cause the greater part of it was studied by Alpheus Hyatt, forming 

 the basis of much of his published work. It contains many types, and 

 many other specimens of historic value. The collection of trilobites 

 is a very good one, stored in five hundred drawers, and representing 

 both Europe and America. The collection contains many types and 

 figured specimens, including a few described by Barrande. A hun- 

 dred and forty drawers contain the other crustaceans and marine 

 arachnids. 



The stratigraphic collection has about nine hundred drawers of 

 Cambrian and Ordovician fossils, a large part of this collection being 

 a by-product of work done under the auspices of the Shaler Me- 

 morial fund. The Ordovician of Russia and Scandinavia and of the 

 American Appalachians are particularly well represented. The re- 

 mainder of the Paleozoic is represented by material in about five 

 hundred drawers, which contain important collections from the 

 Canadian and American Rockies, from Sweden, and from various 

 parts of eastern North America. About two hundred drawers are 

 filled with Mesozoic and Tertiary fossils, chiefly from the United 

 States, but include the collections made by Dr. Robert T. Hill in the 

 West Indies. In comparison to the vastness of the collection, the 

 number of primary types is relatively small; there are perhaps a 



