DAKTON.] 



NORTH AMERICAN GEOLOGY. 



427 



Geologic Philosophy— Continued, 

 Degradation— Continued. 



1875. Northwestern Wyoming, Com- 



stock, T. B. 

 Notes on geology of Lehigh 



County, etc., Pa., Lesley, 



J. P. 

 Report on portions of New Mex- 

 ico and Arizona surveyed in 



1873, Gilbert. 

 Report of survey of North 



Carolina, Kerr. 

 Erosion by sand in the West, 



Gilbert. 



1876. Formation of lakes, Russell, 



LC. 



AntiqLuity of caverns of Ohio 

 Valley, Shaler. 



Note on erosion, Dana, J. D. 



Frost drift in North Carolina, 

 Kerr. 



Erosion of rocks, Andrews. 



Uinta Mountains, Powell. 



Henry Mountains, Gilbert. 



Geologic value of variation in 

 rainfall, Shaler. 



Report of progress, survey of 

 Kentucky, Shaler. 



Striking products of erosion in 

 Colorado, Endlich. 

 1879. Origin of styolites. Nelson. 

 1882. History of Lake Bonneville, 

 Gilbert. 



Geology of Grand Canyon dis- 

 trict, Dutton. 

 . TheUnaweep Canyon, Gannett. 



Tertiary history of Grand Can- 

 yon district, Dutton, C. E. 



1884. Formation of canyons and prec- 

 ipices, Macfarlane. 



Phenomena of Glacial and 

 Champlain periods, Dana, 

 J. D. 



1885. Notes on Niagara, Hallett, P. 

 Age of Kansas, Smyth, B. B. 

 Amount of chemical erosion in 



limestones of Center County, 

 Pa., Ewing. 



1886. Internal erosion, Ewing. 

 Wind action in Maine, Stone. 



1888. Laws of hydraulic degradation, 



Powell, J. W. 

 Laws of corrosion, Hinman, 



Science. 

 Floods in lower Mississippi, 



Meyer, J. 



1877. 



1878. 



Geologic Philosophy — Continued. 



Sedimentation. 



1807. Freestone quarries on Potomac 

 and Rappahannock rivers, 

 Latrobe. 



1818. On the formation of rocks, 

 Maclure. 



1820. Geological essay, Hayden, H. H. 



1822. Singular deposit of gravel of 

 New York, Eaton. 

 Volcanoes and volcanic sub- 

 stances. Cooper, T. 



1824. Reliquiae diluviau», by Buck- 



land, Silliman. 

 Remarks on systems of rooks 

 and their origin, especially 

 secondary, Maclure. 



1825. Bowlders and rolled stones, N. 

 Geological systems and maps 



of Europe, Maclure. 

 Moving of rocks by ice. Wood, 



J. ; Adams, J. 

 Review of Connybeare and 



Phillips (on geological olas- 

 • sification), Am. Jour. Sci. 



1826. Proofs that currents have swept 



the earth, A. 



1828. Bowlders of primitive rocks 



in Ohio and the West, Tap- 

 pan. 

 Low country of North Carolina, 

 Mitchell, E. 



1829. Geology of gold region of North 



Carolina, Mitchell, E. 



1832. Water courses, alluvial, and 



other rocks of Connecticut 

 Valley, Smith. 

 Review of Phillips's Geology, 

 Silliman. 



1833. Report on Massachusetts, 



Hitchcock, E. 

 Georgia gold mines, Phil- 

 lips, W. 

 Topics relating to lower valley 

 of the Mississippi, Nutt. 

 1835. Tertiary of the Atlantic Coast, 



Conrad. 

 1837. Geology of Portland and vicin- 

 ity, Hitchcock, E. 



1839. Notes on American geology, 



Conrad. 

 Geology and topography of 

 western New York, Hayes, 

 G.E. 



1840. Survey of second district of 



New York, Emmons, E. 



