DABTON.] 



NORTH AMERICAN GEOLOGY. 



33y 



Devonian— Continued. 

 Appalachian Region (New York to 

 Alabama) — Continued. 



1876. Durability of natural gas sup- 



ply, Piatt, F. 

 Conglomerate series of West 



Virginia, Fontaine. 

 Geology of oil regions of the 



United States, Newberry. 

 Resources of West Virginia, 



Maury and Fontaine. 

 Coosa coal fields, Ala., Smitb, 



E.A. 



1877. Oil records and levels, Penn- 



sylvania, Carll. 



Ithaca and vicinity, Simons. 



Oil wells of western Pennsyl- 

 vania, Nettleton. 



Oil well records of Pennsyl- 

 vania, Lesley, J. P. 



Report on Fayette and Wesi- 

 moreland coal fields, Pa., Ste- 

 venson. 



Section of Paleozoic in central 

 Pennsylvania, Ashbumer. 



Report on York, Adams, Cum- 

 berland, and Franklin coun- 

 ties, Pa., Frazer, P. 



Gas well at West Bloomfield, 

 N. Y., Wurtz. 



Vespertine of the Virginias, 

 Fontaine. 



Map of Pennsylvania, Lesley, 

 J. P. 



Lower Helderberg at Port Jer- 

 vis, N. Y., Barrett. 



Minerals of southwest Virgmia, 

 Boyd. 



Axes about Cumberland Gap, 

 Shaler. 



1878. Heyners Station oil section, 



'Clinton County, Pa., Chance. 



Petroleum and other hydrocar- 

 bons, Broadhead. 



Limits of Catskill and Che- 

 mung formations in Pennsyl- 

 vania, Sherwood, A. 



Geology of the Catskills, 

 Hall, J. 



Catalogue of rock specimens, 

 survey of Pennsylvania, 

 Hall, C. E. 



Section along Schoharie Creek, 

 N. Y., Sherwood and Sher- 

 wood. 



Devonian — Continued. 

 Appalachian Region (New York to 

 Alabama) — Continued. 



1878. Bradfield and Tioga counties. 



Pa., Piatt, F. ; Lesley, J. P. 



Section of Paleozoic rooks, 

 Clinton County, Pa., Chance. 



Fossil ore of Juniata district, 

 Pa., Dewees, Lesley, J. P. 



Catalogue of exhibit of survey 

 of New Jersey, Cook, G. H. 



Section iu Catskill Mountains, 

 Sherwood, A. 



Correlation of lower Helder- 

 berg of New York, Callaway. 



Upper Devonian of southwest- 

 ern Pennsylvania, Steven- 

 son. 



Region along Virginia and Ken- 

 tucky State line, Moore. 



Report on Indiana County, Pa., 

 Piatt, W. G. ; Lesley, J. P. 



Geologic history of New York 

 Island, etc., Newberry. 



Geology of New York State, 

 Callaway. 



Rock salt in western New York, 

 Macfarlane. 



Dikes and Azoic of southeastern 

 Pennsylvania, Hunt, T. S. 



Section of Paleozoic rocks in 

 Blair County, Pa., Piatt and 

 Sanders. 



Outline of geology of Alabama, 

 Smith, E. A. 



1879. Virginia section across Appala- 



chian chain, Campbell, J. L. 



Bradford oil district of Penn- 

 sylvania, Ashburner. 



Maofarlane's Geological Rail- 

 road Guide to Pennsylvania, 

 Lesley, J. P. 



Macfarlane's Geological Rail- 

 road Guide to western Mary- 

 land, Fontaine. 



Macfarlane's Geological Rail- 

 road Guide to New York, 

 Macfarlane. 



Report of geologist of New Jer- 

 sey for 1879, Cook, G. H. 



Maofarlane's Geological Rail- 

 road Guide to Virginia, Rog- 

 ers, W. B. 



Maofarlane's Geological Rail- 

 road Guide to Alabama, Ges- 

 ner and Smith. 



