DABTON.] 



NORTH AMERICAN GEOLOGY. 



877 



Silurian — Continued. 

 New England — Continued. 



1842. Geology of New York, second 



distriut, Emmons, E. 



1843. Structure of Appalachians, ex- 



emplifying laws of mountain 

 chains, Rogers and Rogers. 

 Structure of Berkshire and 

 vicinity, Rogers, H. D. 



1844. Final report on New Hamp- 



shire, Jackson, C. T. 



Geological map of Massachu- 

 setts, Hitchcock, E. 



Explanation of geologic map of 

 Massachusetts, Hitchcock, E. 



American geology and condi- 

 tion of research in United 

 States, Rogers, H. D. 



1845. Travels in North America, 



LyeU. 

 Report on counties in Vermont, 



Hall and Thompson. 

 First report on Vermont, 



Adams, C. B. 



1846. Remarks on Taconio system, 



Emmons, E. 

 Second report on geology of 



Vermont, Adams, C. B. 

 Age of the White Mountains, 



Rogers and Rogers. 



1847. Third report on geology of 



Vermont, Adams, C. B. 



1848. On the Taconic rocks, Adams, 



C.B. 



Geography and geology of Ver- 

 mont, Thompson, T. 



Fourth report on Vermont, 

 Adams, C. B. 



Supposed fossils from White 

 Mountains, Rogers, H. D. 



Rogers on geology of White 

 Mountains, Jackson, C. T. 



1849. On the geology of Canada, 



Hunt, T. S. 



1851. Age of copper rocks of Lake 



Superior and physical struc- 

 ture of Canada. Logan. 



On the Taconic system. Hunt, 

 T.S. 



Agency of gas and steam in 

 rock alteration, Roger8,W. B. 



1852. Age of clay slate of Connecti- 



cut Valley, Hitchcock, E, 



Silurian — Continued. 

 New England — Continued. 



1853. Report on certain points in 



geology of Massachusetts, 

 Hitchcock, E. 



Appendix to history of Ver- 

 mont, Thompson, T. 



Geologic map of the United 

 States, etc. , Marcou, J. 



1854. Some crystalline limestones of 



North America, Hunt, T. S. 



1855. American geology, Emmons, E. 

 Ueber die Geologie von Nord- 



Amerika, Marcou, J. 

 So-called talcose slates of the 

 Green Mountains, Hunt, T. S. 



1858. Geology of North America, 



Marcou, J. 



1859. Catalogue of State cabinet 



and notes on metamorphics, 

 Hitchcock, E. 



Paleontology of New York, vol. 

 3, Hall, J. 



Devonian and Taconic in south- 

 east Canada, Logan. 

 1861. Age of Emmons's Taconic re- 

 gion, Hitchcock, C. H. 



Rocks of Perry, Me., Jackson, 

 C.T. 



Geological map of Vermont, 

 Hager. 



Economical geology of Ver- 

 mont, Hager. 



Physical geography and scen- 

 ery of Vermont, Hager. 



Pre-Carbouiferous flora of New 

 Brunswick, Maine, and east 

 Canada, Dawson, J. W. 



Age of White Mountains, 

 Lesley, J. P. 



Fossils on Dennis River, Me., 

 Rogers, W. B. 



Taconic system of Emmons, 



Hunt, T. S. 

 Structure of western Vermont, 

 Rogers, W. B. 



Geology of Vermont and the 

 Taconic system, Hitchcock, 

 C.H. 



Fossils from Potsdam group, 

 Vermont, Billings. 



Report on geology of Vermont, 

 Hitchcock, E., Hitchcock, 

 E., jr., Hager and Hitch- 

 cock, C. H. 



