DABTOS.] 



NORTH AMERICAN GEOLOGY. 



335 



Desor, E. — Contianed. 



Q and WTiitney, J. D.] [On so-called 



fossil raindrops on New Red sandstone 

 and on Potsdam sandstone.] 



Boston Soc. Nat. Hist., Proc., vol. 3, pp. 200- 

 202. 1851. 



Devereux, B. D. The Deer Creek coal 

 fields, Arizona. 



Eng. and Mining Jottr., vol. 32, pp. 40i-405, 



40, 1881. 



Devereus;, Walter B. The occurrence of 

 gold in the Potsdam formation, Black 

 Hills, S. Dak. 



Am. Inat. Mining £ng., Trans., vol. 10, pp. 

 465.^75, 1882. 



Devonian. 

 Appalachian Region (New York to 

 Alabama). 

 1787. Mineralogische Kenntniss des 

 ostlicheu Theils von Nord- 

 Amerika, etc., Schoepf. 

 / 1818. Index to geology of the North- 

 ern States, Eaton. 

 Geology of the United States, 

 Maclnre. 

 1820. Account of Kaatskill Moun- 

 tains, Dwight, H. E. 

 Geology of the Hudson River, 



Akerly. 

 Survey of Albany County, N. Y., 

 Eaton and Beck. 



1822. Notes on the Catskills, Barton, 



D.W. 

 Survey of Rensselaer County, 

 N. Y., Eaton. 



1823. Memoir on Catskill Mountains, 



Pierce. 



1824. Survey of Erie Canal. Eaton. 

 Expedition to sources of St. 



Peters River, Keating. 



Van Rensselaer on salt, Per- 

 cival. 



Nomenclature of North Ameri- 

 can rocks, Eaton. 



Tabular view of North Ameri- 

 can rocks, Eaton. 

 1830. Feature of south side of On- 

 tario Valley, Geddes. 



Coal formation of State of New 

 York, Eaton. 



Geological text-book, Eaton. 



Graywaoke region of New York, 

 Morse. 



Dips in western New York, 

 Thomas, D. 



Geologic prodromus, Eaton. 



Devonian — Continued. 

 App.\LACHiA>f Region (New York to 

 Alabama) — Continued. 



1831. Eaton on coal formations in 



New York, Thomas, D. 

 Features along the Hndson and 

 through New York, Eaton. 



1832. Geology of Wayne County, 



Pa., Davis, J. P. 



Stratigraphic geology estab- 

 lished by organic remains, 

 Eaton. 



Geological equivalents, Eaton. 



1833. Fountain of petroleum, Silli- 



man. 

 Coal beds of Pennsylvania, 



equivalents in Europe, Eaton. 

 Facts relating to dUuvial action 



in New York, Thompson, 



W.A. 



1835. Geology and mineralogy of 



Schoharie, N. Y., Gebhard, J. 

 Portions of coal formations in 



Pennsylvania, Taylor, R. C. 

 Description of portion of the 



Alleghany Mountains, Pa., 



MiUer, E. 

 Travertine in Virginia,Feather- 



stonhaugh. 



1836. First report on survey of Penn- 



sylvania, Rogers, H. D. '- 



Reconnaissance Croin Washing- 

 ton, through Wisconsin, to 

 Coteau de Prairie, Feather- 

 stonhangh. 

 First report of survey of New 



Jersey, Rogers, H. D. 

 Reconnaissance of Virginia, 

 Rogers, W. B. 



1837. First report on first district of 

 New York, Mather. 



Physical geography of Mary- 

 land, Ducatel. 



Geology of western New York, 

 Hayes, G. E. 



Report of survey of Virginia for 

 1836, Rogers, W. B. 



First report on survey of third 

 district of New York, Conrad. 



1838. Second report of survey of 

 fourth district of New York , 

 Hall, J. 



Second report on survey of 

 Pennsylvania, Rogers, H. D. 



Report of survey of Virginia 

 for 1837. Rogers. W. B. 



