NORTH AMERICAN GEOLOGY. 



695 



New York— Continued. 



1879. Section at Eondout, Barrett. 

 Atlantic system of mountains, 



Hitchcock, C. H. 

 Iron ores of northern New York, 



Hall, C. E. 

 Limit of drift in New Jersey, 



Cook. 



1880. Relations of Oneonta and sand- 



stones of the Catskills, Hall, J. 

 Paleontologic researches on Gen- 

 esee slate, Williams, H. S. 

 Geology of the oil regions, Carll. 

 History of some pre-Cambrian 



rocks, Hunt, T. S. 

 Structure and hypsometry of the 



Catskill Mountains, Guyot. 

 On Atops triliniatus, etc.. Ford. 

 Wappinger Valley limestone, 



Dwight. 

 Former exten t of Triassic in the 



East, Russell, I. C. 

 Geologic action of humus acids, 



Julien. 

 Age of the Green Mountains, 



Dana, J. D. 

 Western limit of the Taconio 



system. Ford. 

 List of papers on Taconio system, 



Dana, J. D. 

 Succession of glacial deposits in 



New England, Upham. 

 Limestone belts of Westchester 



County, Dana, J. D. 

 Recent investigations near 



Poughkeepsie, Dwight. 

 Nomenclature Pal^ozoique, 



Hall, J. 

 Geology of McKean County, 



Pa., Ashburner. 

 Geology of Potter County, Pa., 



Sherwood, A. ; Lesley, J. P. 



1881. Taconic system in geology. Hunt, 



T.S. 

 Fossils in Wappinger limestone, 



Dwight. 

 New Devonian plants, Dawson, 



J.W. 

 Age of rocks of New York Island, 



etc., Britton, N. L. 

 Mineral springs of Saratoga, 



Fish, C. 

 Geology of Staten Island, Britton, 



N. L. ; Dana, J. D. 

 Canyons ; their character and ori- 

 gin, Bross. 



Nevr York — Continued. 



1881. Channel fillings in Devonian 



shales, Williams, H. S. 



Kames and moraines of New Eng- 

 land, Wright, G. F. 



Mastodon, Broadhead. 



Unification of Silurian nomen- 

 clature. Miller, S. A. 



Colonies dans les roches Taco- 

 niques, Marcou, J. 



Pre-Glacial formation of beds of 

 great American lakes, Claypole. 



Geology of Philadelphia County, 

 etc., Pa., Hall, C. E. ; Lesley, 

 J. P. 



Record of geology, 1879-1880, 

 Hawes. 



Various massive rocks made in 

 one metamorphic process, Dana, 

 J.D. 



1882. Niagara River, Ballon. 



The Potsdam sandstone, Minne- 

 sota, Winchell, N. H. 



Terraces and beaches of Lake 

 Ontario, Spencer, J. W. 



Amount of oil remaining, Wrig- 

 ley. 



Pre-Glacial outlet of Lake Erie 

 and origin of the lower Great 

 Lakes, Spencer, J. W. 



North America in the Ice age, 

 Hitchcock, C. H. 



Potholes near Williamsbridge, 

 Britton, N. L. 



Rocks of New York and Staten 

 islands and on drift, New- 

 berry. 



Thickness of glacier. Smock. 



Remarks on the Catskills and the 

 Hudson Valley, Newberry. 



Mineral localities around Xew 

 York, Darton. 



Correlation of eastern and west- 

 ern terminal moraines, Cham- 

 berlin. 



Tertiacy of central region. Cope. 



Flood in Connecticut Valley from 

 melting glacier, Dana, J. D. 



Chemung fossils in Delaware 

 County, Jewett. 



Features of lower Great Lakes 

 during Great River age, Spen- 

 cer, J. W. 



Evidence of pre-Glacial origin of 

 basins of Lakes Erie and On- 

 tario, Claypole. 



