DABTON.] 



NORTH AMERICAN GEOLOGY. 



201 



Carboniferous^^Continued. 

 Ohio —Continued . 



1871. Fossils from Marshall group of 



the West, Wiuohell, A. 

 Report of survey of Ohio for 



1869, Newberry. 

 Chemical report of survey of 



Ohio, Wormley. 

 Preservation of vegetal remains 



in coal, Lesquereux. 



1872. Bowlders in coal, Marsh. 



1873. Reports on Ashtabula, Trum- 



bull, Lake, and Geauga 

 counties, Ohio, Read, M. C. 



Report of survey of Ohio, New- 

 berry. 



Report on second district of 

 Ohio, Andrews, E. B. 



Geologic map of United States, 

 Hitchcock, C. R. ; Hitchcock 

 and Blake. 



Surface geology of northwest 

 Ohio, Winchell, N. H. 



1874. Analysis of Berea sandstone, 



Brainerd, J. 

 Erie and Lorain counties, Ohio, 



Newberry. 

 Parallelism of coal seams, An- 

 drews, Newberry. 

 Glauconite and fossil resins. 



Hunt, T. S. 

 Analyses of Ohio coals. New. 



berry. 

 Geology from Ottawa to Defir 



auce counties, Ohio, Win- 

 chell, N. H. 

 Report on third district of 



Ohio, Orton, E. 

 Report on second district of 



Ohio, Andrew, E. B. 

 Coals of Hooking Valley, Ohio, 



Hunt, T. S. 

 Carboniferous system of Ohio, 



Newberry. 

 Map of coal fields, Hitchcock, 



C.H. 

 Steinkohlen der Vereinigten 



Staaten, Macfarlane. 



1875. The ores of iron, their distribu- 



tion, Newton. 

 Coal seam in Ohio geology, 

 Whittlesey. 



1876. Structure of Ohio coal fields, 



Whittlesey. 



Carboniferous — Continued. 

 Ohio — Continued. 



1876. Geology of oil regions of the 



United States, Newberry. 

 Mahoning Valley coal region, 



Roy. 

 Review of fossil flora of North 



America, Lesquerenx. 

 Coal plants from Ohio, An- 

 drews. 

 Antiquity of caverns and 



cavern life of Ohio Valley, 



Shaler. 

 Erosion of rocks, Andrews. 

 Geologic chart of United 



States, Bradley. 



1877. Coal regions of America, Mac- 



farlane, J. 



1878. Geology of Coshocton County, 



Ohio, Hodge, J. T. 



Report on Hanging Rock dis- 

 trict, Ohio, Orton, E. 



Ashland, Wayne, and Holmes 

 counties, Ohio, Read, M. C. 



Geology of Tuscarawas, Colum- 

 biana, Portage, and Stark 

 counties, Ohio, Newberry. 



Geologic structure of Ohio, 

 Newberry. 



Geology of Carroll and other 

 counties, Ohio, Stevenson. 



Geology of Huron, Richland, 

 Enox, and Licking counties, 

 Ohio, Read. 



Hocking Valley coal field. Read, 

 M.C. 



Geology of Medina County, 

 Ohio, Wheat. 



Perry and parts of Hocking 

 and Athens counties, Ohio, 

 Andrews. 



Waverly group in central Ohio, 

 Hicks. 



Jefferson and Mahoning coun- 

 ties, Ohio, Newberry. 



1879. Bowlder in coal. Hicks. 

 Lower Waverly strata of Ohio, 



Orton. 



Corrections for geologic map, 

 Ohio, Andrews. 



New group of lower Carbonif- 

 erous in southwest Ohio, 

 Andrews. 



Coal and iron of Hocking Val- 

 ley, Ohio, Hunt, T. S. 



