DAETON.] 



NORTH AMERICAN GEOLOGY. 



709 



O. 



Ochsenius, Carl. Geologisches und 

 Montanistisohes aus Utah. 



Geol. Gesell., Zeit., vol. 34, pp. 288-372, 1882. 



On the formation of rook-salt beds 



and mother liquor salts. 



Philadelphia Acad. Soi., Proc, 1888, part 2, 

 pp. 181-187, 1888. " 



Odium, E. On the sand plains and 

 changes of level of the upper Ottawa. 

 Ottawa Field Naturalist's Cluh, January 17, 

 1884. 

 Science, vol. 3, pp. 107-108 (i p.), 1881. 

 Oebbeke, K. Ueher das Gestein vom 

 Taooraa-Berg, Washington Territory. 

 Nenes Jahrbuch, 1885, vol. 1, pp. 222-226, 1885. 

 Ohio. 

 1809. Observations on geology of 

 United States and geologic 

 map, Maclure. 

 1818. Account of valley of the Ohio, 

 Drake, D. 

 Origin of prairies. Wells, R. W. 

 Observations on geology of North 



America, Mitchell, S. L. 

 Prairies and barrens of the West, 



Atwater, C. 

 Belmont County, Atwater, C. 



1820. Bones and shells in Ohio and the 



West, Atwater. 



1821. Vegetal impressions from coal of 



Zanesville, Granger. 



1822. Strontianite-bearing limestone on 



Lake Erie, Bigsby. 



1823. Fluted rook at Sandusky Bay, 



Granger. 

 Expedition from Pittsburg to the 



Rocky Mountains, Long. 

 Essay on salt, Van Rensselaer. 



1826. Facts relating to parts of Ohio, 



Hildreth, Atwater. 



1827. Fossil trees near Gallipolis, Hil- 



dreth. 

 Coal, diluvial and other strata of 

 Ohio, Hildreth. 



1828. Bowlders of primitive rook, Tap- 



pan. 



1829. Certain American rock forma- 



tions, Vanuxem. 

 Large bowlder in southern Ohio, 



Scoville. 

 Bowlders of primitive rooks in 



Ohio, Hildreth. 



1830. Geological text-book, Eaton. 



1832. Bowlders of Ohio, Lapham. 



1833. Saliferous formations in the Ohio 



Valley, Hildreth. 



Ohio — Continued. 

 1834. Ten days in Ohio, Am. Jour. Sci. 



1836. Analysis of limestone of Cincin- 



nati and Dayton, Locke. 

 Reconnaissance from Washington 



through Wisconsin to Coteau 



des Prairies, Featherstonhaugh . 

 Bituminous coal deposits of the 



valley of the Ohio, Hildreth. 

 Geology of lakes and Mississippi 



Valley, Gibson, J. B. 

 Lias of the West, Hildreth. 

 General sketch of geology of 



Ohio, Hildreth. 



1837. Tour to falls of the Cuyahoga, 



Am. Jour. Soi. 

 General sketch of geology of 



Ohio, Riddell. 

 Observations on geology of Ohio, 



Lapham, I. A. 



1838. Section in southeast Ohio, Briggs 



and Foster. 



First report of survey by Mather, 

 Silliman. . 



Reports of survey of Ohio, Mather. 



Report on counties of Ohio, Whit- 

 tlesey. 



Report on Muskingum County 

 etc., Foster, J. W. 



Prairies of Ohio, Western Monthly 

 Mag. 



Remarks on report on survey of 

 Ohio, Mather. 



Report on southwest Ohio, Locke. 



Report on Wood, Crawford, etc., 

 counties, Briggs, C. 



Report on coal district of Ohio, 

 Hildreth. 



Report from Scioto and Hock- 

 ing, Briggs, C. 



1839. Mastodon from Crawford County, 



Foster, J. W. 



1840. On the Silurian system, Conrad. 



1841. Bowlders and scratches, Mather. 

 Glacial planing in Ohio, Locke, J. 

 Report on paleontology of New 



York, Conrad. 

 Limite qui s^pare le calcaire de 



montagne, Verneuil. 

 Mountain limestone of eastern 



United States, Foster, J. W. 



1842. Notes on geology of the Western 



States, Hall, J. 

 Silurian and Devonian of the 

 United States, Conrad. 



