NATURAL HISTORY MUSEUMS 95 



Hall collections of New York fossils, obtained from the Ameri- 

 can museum of natural history; several large slabs of ichnites- 

 from the Connecticut valley; and several of Ward^s casts of large 

 vertebrate fossils. 



Mvneralogy. About 2000 specimens representing nearly 300 

 Bpecies and varieties and including the Frederick Hall collection. 

 New England localities are best represented. 



Historic geology. 4000 specimens: fossils and rocks, illustrat- 

 ing formations all over the United States, but particularly those 

 of Connecticut, New York, Ohio, Indiana, Illinois, Iowa, Minne- 

 sota, Missouri, Kansas, Alabama and Colorado. 25 relief maps, 

 one of New Hampshire and Vermont on a scale of 1 mile to an 

 inch, and colored geologically. The sections are arranged geo- 

 graphically and are accompanied by colored geologic profiles to 

 illustrate the relations of the several formations. 



Economic geology. 2500 specimens: a collection of 1500, illus- 

 trating the occurrence of gold and silver ores in Montana, spe- 

 cially rich in the silver ores of the Cordilleras; marbles, slates 

 and granites of New Hampshire and Vermont; and a series of 

 petroleum specimens representing 100 localities. 



Lithology. 11,700 specimens: volcanic rocks from Vesuvius 

 and the Hawaiian volcanos, 350; massive igneous rocks of gen- 

 eral distribution, 200; a special collection from the New Hamp 

 shire geological survey, collected to illustrate the survey reports, 

 250; a general collection of New Hampshire and Vermont rocks,. 

 3500; a special collection from the White mountains, 1000; 

 from the Ammonoosuc district, 1100; a series from the vicinity 

 of Hanover N. H. 500; a series from the vicinities of Vernon 

 N. H. and Bernardston Mass. 200; a set illustrating the geology 

 of 16 sections crossing New Hampshire and Vermont, 3000; a 

 collection of drift boulders illustrating the distribution of 

 drift material in New England, 1500. They have been par- 

 tially described in the New Hampshire reports and in bulletins 

 of the American museum of natural history. Most of them are 

 the official collections of the New Hampshire state geological 

 survev. 



