DABTON.] 



NORTH AMERICAN GEOLOGY. 



867 



Silurian — Continued. 

 AppAiACHiAjf — Continued. 



1859. Paleontology of New York, vol. 



3, Hall, J. 



Sedimentary and other rela- 

 tions of Paleozoic fossils of 

 New York, Bigsby. 



Clinton group iron ore, Rogers, 

 W.B. 



Survey of Onondaga, N. Y., 

 Geddes. 



1860. History of gypsums and mag- 



nesian rocks, Hunt, T. S. / 

 First report of chemist of 

 Maryland, Tyson. 



1861. Guide to geology of New York, 



Lincklaen. 



Some points in American geol- 

 ogy, Hunt, T. S. 



Remarks on Taconic system. 

 Am. Jour. Scl. 



Map to illustrate types of 

 earth's surface east from Cin- 

 cinnati, Lesley, J. P. 



Appalachian Mountain system, 

 Guyot. 



History of petroleum, Hunt, 

 T. S. 



Notes on Primordial and Ta- 

 conic, Marcou, J. 



Faunal relations of some geo- 

 logic groups, Rogers, W. B. 



Taconic system of Emmons, 

 Hunt, T. S. 



1862. Potsdam and Hudson rocks in 



Vermont, Hall, J. 



Survey of county of Orange, 

 N. Y., Denniston. 



On Primordial of America, 

 Hall, J. 



Remarks on the Taconic sys- 

 tem, Stevens. 



1863. Parallelism of Quebec group, 



Billings. 



1864. Geology of eastern New York, 



Hall and Logan. 

 -- Identity of Oneida and Medina 

 in central New York, Jewett. 



1865. Age of New Jersey Highlands, 



by Rogers, Lesley, J. P. 



Taconic question, Hall, J. 



Report of survey of New Jer- 

 sey for 1864, Cook, G. H. 



Coal and gypsum of southern 

 Virginia, Lesley, J. P. 



Silurian — Continued. 

 AprALACHiAX — Continued. 



1865. Distribution of graptolites, 



Hall, J. 

 Le Niagara quinze ans aprfes, 



Marcou, J. 

 Lignite of Franklin County 



and geology of southeastern 



Pennsylvania, Lesley, J. P. 



1866. Origin of some of the earth's 



features, Dana,. J. T>. 



Map of Canada and part of 

 United States, Logan and 

 Hall. 



Mineral springs of Onondaga, 

 N. Y., Goessmann. 



Lower Silurian of North Amer- 

 ica, Logan. 



1867. On the name Hudson River 



group. Meek. 

 The State of Alabama, Haines. 



1868. Points in geology of Vermont, 



Hunt, T. S. 

 Geology of New Jersey, Cook, 



G. H. 

 So-called lignilitesorepsomites. 



Marsh, O. C. 



1869. Anticlinal in Wythe County, 



Va., Kohler. 



1871. Color of rocks poor in animal 



remains, Newberry. 

 Relative age of Niagara and 



Lower Helderberg groups, 



Worthen. 

 G«ology and mineralogy of 



Georgia, Stephenson. 

 Cave in eastern Pennsylvania, 



Wheatley. 

 Primordial near Troy, N. Y., 



Ford. 

 Geognosy of Appalachians, 



Hunt, T. S. 

 Pennsylvania's foundation 



stones, Leeds. 

 Geoguosie und Mineralreich- 



thum desAlleghany-Systems, 



Credner, H. 



1872. History of Cambrian and 



Silurian, Hunt, T. S. 

 Past and future of Niagara, 



Gunning. 

 Rocks of Ulster County, N. Y., 



Lindsley. 

 Relation of Middle and Upper 



SUurian in United States, 



Hail, J. 



