BAHTON.] 



NORTH AMERICAN GEOLOGY. 



343 



Devonian — Contiuued. 

 Appalachian Region (New York to 

 Alabama) — Continued. 

 1886. Succession in Ontario County, 

 N. Y., Clarke, J. M. 



Westward extension of Helder- 

 berg in New York, Williams, 

 S.G. 



Chemung section of Bradford 

 County, Pa., Lilley. 



Classification of upper Devo- 

 nian, Williams, H. S. 



Oriskany in Lycoming County, 

 Pa., Woolmau. 



Revision of Cayuga Lake sec- 

 tion, N. Y., Williams, H. S. 



Tully limestone, Williams, S. G. 



Samples of iron ores of Vir- 

 ginia, Benton. 



Borings for oi] in Potter 

 County, Pa., Ashburner. 



Oil and gas in Pennsylvania, 

 Carll. 



New geologic wrinkles in New 

 York, Gilbett. 

 1887-1889. Distribution of natural 

 gas, Ashburner. 



Building stones of New York, 

 Smock. 



Fauna of Upper Devonian of 

 Genesee section, Williams, 

 H. S. 



Hamilton of Chenango and Ot- 

 sego counties, N. Y., Prosser. 



Oueonta sandstone, Beecher 

 and Hall. 



Petroleum and gas regions of 

 New York, Ashburner. 



Tully limestone, Williams, S. G. 



Well at Morrisville, N. Y., Pros- 

 ser. 



Williams's report on Devonio, 

 Marcou, J. 



Green Pond Mountain group, 

 Merrill, F. J. PI. 



Geologic map of New Jersey, 

 Cook. 



Map of vicinity of New York 

 City, Martin, D. S. 



Report of geologist of New 

 York, Hall, J. 



Survey in Alabama and Geor- 

 gia, Spencer, J. W. 



Map of United States, Hitch- 

 cock, C. H. 



Devonian — Continued. 

 Appalachian Region (New York to 

 Alabama) — Continued. 

 1887-1889. Oneida Couuty, N. Y., 

 Brigham. 



Cambria County, Pa., Fulton. 



Four great sandstones. Clay- 

 pole. 



Lehigh River cross section. 

 Hill, F, A. ; Winslow. 



Materials of the Appalachians, 

 Claypole. 



Oil and gas regions, Carll. 



Paint ores along Lehigh River, 

 Hill, F. A. 



Greenbrier County, W. Va., 

 Page. 



Mineral resources of Tennes- 

 see, Page. 



New River-Cripple Creek re- 

 gion, d'Invilliers and Mc- 

 Creath. 



Southwestern Virginia, Steven- 

 son. 



1890. Cuboides zone, Williams, H. S. 

 Thickness of rocks in west-cen- 

 tral New York, Prosser, C. S. 



Areas of continental progress 

 in North America, Dana, J. D. 



Rock salt deposits of western 

 New York, Newberry. 



Locality numbers. Hall, J. 



Supposed dikes at Ithaca, 

 Kemp. 



Report on oil and gas, Carll. 



Macfarlane's Railway Guide, 

 Lindsey, Williams, H. S. ; 

 Smith and Gesner, Smock, 

 Lesley, Lewis, Campbell, 

 Fontaine, White, I. C. 



Making of Pennsylvania, Clay- 

 pole. 



Report on oil and gas, Carll. 



Paleozoic fishes, Newberry. 



Dikes in Appalachian Virginia, 

 Darton. 



Warren's Geography, Brewer. 



Building stones of New York, 

 Smock. 



1891. Devonian and Carboniferous, 



correlation, AVilliams, H. S. 



Geologic position of the Cats- 

 kill group, Prosser. 



Age of the Catskill flora, Daw- 

 son, .T. W. 



