DARTOir.] 



NORTH AMERICAN GEOLOGY. 



875 



Silurian — Continued. 

 Appalachian — Continued. 



1888. Niagara shales, Eingncberg. 

 Well at Morristown, N . Y. , Pros- 



ser. 



Four great sandstones, Clay- 

 pole. 



Marble of Hawkins County, 

 Tenn., Willis. 



Aluminum ore, Georgia, Nich- 

 ols. 



Albirupean formation, Heil- 

 prin. 



Resources of Tennessee, Proc- 

 ter. 



1889. Geology of Oneida County, N. 



Y., Brigham. 

 Porphyrite of northwestern 



New Jersey, Kemp. 

 Calciferous fossils of Lake 



Champlain, Whitfield, R. P. 

 Camptonite dike, Washington 



County, Kemp and Marsters. 

 Geologic map of New Jersey, 



Cook, G. H. 

 Cement and gypsum in Buffalo, 



Pohlman. 

 Geology of Buffalo, Ashburner. 

 Life history of Niagara, Pohl- 

 man. 

 Petroleum and gas, Ashburner. 

 Salt wells and deposits, Bishop, 



Newberry. 

 Philadelphia region. Rand. 

 Slate quarries of Pennsylvania, 



Merrill, 6. P. 

 Geological survey of Georgia, 



Report, Spencer, J. W. 

 Iron ores of Birmington dis- 

 trict, Brainerd, A. F. 

 Greenbrier County, W. Va., 



Page. 

 Rocks of Pennsylvania and 



New York, Rand. 



1890. Report — division of Paleozoic 



invertebrata, United States 



Geological Survey, Walcott. 

 Report — Paleozoic division of 



paleontology. United States 



Geological Survey, Walcott. 

 Siderite basin of Hudson River 



epoch, Kimball. 

 Unconformity in the valley of 



the Hudson, Davis, W. M. 

 Saliferous deposits as evidence 



of climatal conditions, Shaler. 



Silurian — Continued. 

 Appalachian — Continued. 



1890. Ironmines of New York, Smock. 

 Rook salt deposits of western 



New York, Newberry. 



Metamorphic strata of south- 

 eastern New York, Merrill, 

 F. J. H. 



Fossils in Dutchess County, 

 N. Y., Dwight, W. B. 



Fossils at Pleasant Valley, 

 N. Y., Dwight, W. B. 



Silurian fossils in Columbia 

 County, N. Y., Bishop. 



Macfarlane's Railway Guide, 

 Campbell, Crosby, Dana, 

 Darton, Dwight, Ford, Fon- 

 taine, Hitchcock, Hunt, T. 

 S. ; Lesley, Lindsley, Mc- 

 Cutchen, Safford, Smock, 

 Smith and Gesner, Williams, 

 H.S. 



Fossils in HUlsdale, N. Y., 

 Dana. 



Thickness of rocks in western 

 central New York, Prosser, 

 C. S. 



Analysis of dolomite from 

 Westchester County, N. Y., 

 Hillobrand. 



Locality numbers. Hall, J. 



Traps of Newark system in 

 New Jersey, Darton. 



Making of Pennsylvania, Clay- 

 pole. 



Casts of scolithus, Pennsyl- 

 vania, Wanner. 



Iron ores. Hunt, T. S. 



Fossils in caves in Pennsyl- 

 vania, Leidy. 



Dikes in Appalachian Virginia, 

 Darton. 



Middleboro, Ky., Boyd. 



Oil field of Barren County, Ky., 

 Fischer. 



Analyses of dolomite and clay, 

 Morrisville, Ala., HUlebrand. 



Warren's Geography, Brewer. 



1891. Manganese ore deposits at Cri- 



mora, Va., Hall, C. E. 



Genesis of iron ores, Kimball. 



Biographical notice of E. Em- 

 mons, Marcou, J. 



Artesian well at Parkesburg, 

 Pa., Lesley, J. P. 



