DABTON.) 



NORTH AMERICAN GEOLOGY. 



701 



New York — Continued. 



1889. Report — Atlantic coast lUvision, 



U. S. Geological Survey [shore 

 lines on Catskill Mountains], 

 Shaler. 



Building stones, Merrill, G. P. 



Iron mines. Smock. 



Mastodon at Attica, Clarke, J. M. 



1890. Analysis of dolomite from West- 



chester County, Hillel)rand. 



Analyses of inclusions in diorite 

 at Crugers, Chatard. 



Analyses of serpentines, Catlett. 



Amboy clays, Newberry. 



Ancient shore lines, Merrill, P. 

 J.H. 



Calciferous in Champlain Valley, 

 Brainerd and Seely. 



Clays near Morrisania, Martin, 

 D. S. ; Merrill, F. J. H. 



Cuboides zone, Williams, H. S. 



Deformation of Iroquois beach, 

 Spencer, J. W. 



Excursion in northern Appala- 

 chians, Williams, G. H. 



Extensions of the Iroquois beach, 

 Spencer, J. W. 



Fiords and great lake basins of 

 North America, Upham. 



Fossils in eastern part of Dutchess 

 County, Dwlght. 



Fossils at Pleasant Valley, 

 D wight. 



Fossils in Taconic belt at Hills- 

 dale, Dana, J. D. 



Glacial boundary, Wright, G. P. 



Glacial geology, Irondequoit re- 

 gion, Dryer. 



History of Niagara River, Gil- 

 bert, G. K. 



Iron ores. Hunt, T. S. 



Iroquois beach, Davis, W. M. ; 

 Spencer, J. W. 



Lake ridges of Ohio, Wright, G. P. 



Long Island Sound in Quater- 

 nary and submerged Hudson 

 River channel, Dana, J. D. 



Macfarlane's Railway Guide, 

 Dana, Darton, Dwight, Ford, 

 Hitchcock, J. M. ; Hunt, T. S. ; 

 Lindsley, Smock, Williams, H.S. 



Middle Taoonio at Stissing, 

 Dwight. 



Origin of Syracuse serpentine, 

 Williams, G. H. 



New York— Continued. 



1890. Potholes opposite Catskill, Hub- 



bard. 



Report on oil and gas, Carll. 



Richfield Springs clay, analysis, 

 Catlett. 



Rock salt deposits, Newberry. 



Saliferous deposits as evidence of 

 climatal conditions, Shaler. 



Sandstone in drift on Staten 

 Island, Gratacap. 



Serpentinous rocks, Merrill, G. P. 



Siderite basins, Kimball. 



Silurian fossils, Columbia Coun- 

 ty, Bishop. 



Structure of Devonian and Silu- 

 rian in west central New York, 

 Prosser. 



Supposed dikes at Ithaca, Kemp. 



Traps of Newark system, Darton. 



Unconformity in Hudson Valley, 

 Davis, W. M. 



Value of term "Hudson River 

 group," Waloott. 



Warren's Geography, Brewer. 



Wright's "Ice age in North 

 America," Hitchcock, C. H. 



Building stones. Smock. 



Fauna of Lower Cambrian, Wal- 

 oott. 



1891. American opinion on the older 



rocks, WinoheU, A. 



Artesian wells, Smock. 



Cambrian of North America, Wal- 

 cott. 



Chazy formation in the Cham- 

 plain Valley, Brainerd. 



Clinton oolitic iron ores, Foerste. 



Cretaceous formation of North 

 America, White, C. A. 



Dates of origin of certain topo- 

 graphic forms, Davis, W. M. 



Davis on the Iroquois beach, 

 Spencer, J. W. 



Devonian and Carboniferous, cor- 

 relation, Williams, H. S. 



Episode in Paleozoic history of 

 Pennsylvania, Claypole. 



Excavation of the new Croton 

 Aqueduct, Carson. 



Excursions across Long Island, 

 Bryson. 



Eruptive iron ores, Nason. 



Equivalents of Minnesota iron 

 ores, Winchell, N. H. 



