DAKTOW.l 



NORTH AMERICAN GEOLOSY. 



905 



Silurian — Continued. 

 General — Continued. 



1876. Eevie-w of fossil flora of North 



America, Lesquereux. 



1877. Critical periods in history of 



the earth, Le Conte. 



1878. Thesaurus siluricus, Bigsby. 

 Dikes and Azoic of southeastern 



Pennsylvania, Hunt, T. S. 



1879. Macfarlane's Geological Kail- 



road Guide, Hunt, T. S. ; 

 Macfarlaue. 

 On Hunt's and Dana's geolog- 

 ical tables, Broadhead. 



1880. Geodetic history of North Amer- 



ican flora, Newberry. 

 Nomenclature des terrains pa- 



l(Sozoique8, Hall, J. 

 Geologic action of hutnus acids, 



Julien. 



1881. Unification of Silurian nomen- 



clature. Miller, S. A. 



1882. Geological chart, Eeid, H. A. 

 Hypothetical high tides as ge- 

 ologic agents, Newberry. 



1883. Utica and related horizons, 



Walcott. 

 Geologic history of the Ameri- 

 can continent, Hall, J. 



1884. Age of North Atlantic, Hull, E. 



1885. Land floras of old and new 



worlds, Dawson, J. W. 

 Taconio system, Marcou, .1. 



1886. Taconic controversy in a nut- 



shell, Winchell, N. H; Car- 

 ton. 



1888. Report of subcommittee on 



Paleozoic, International Con- 

 gress of Geologists, Win- 

 chell, N. H. [et al.]. 



American classification and 

 nomenclature, Marcou, J. 



Som« forgotten Taconic litera- 

 ture, Vogdes. 



Taconic question, Dana, J. D. ; 

 Hunt, Marcou, J. ; Selwyn, 

 Winchell, N. H. ; Newberry, 

 Waloott, Winchell, A.; Mil- 

 ler. 



1889. SilnriaB in geology, Dana, J. D. 

 Canadian geologixial classifica- 

 tion, by Marcou, Selwyn. 



1890. Value of term " Hudson River 



group," Waloott. 

 Iron ores ©f the United States, 

 Hunt, T. S. 



Silurian — Continued. 

 General — Continued. 



1890. Lower and middle Taconic, 



Marcou, J. 



Silurian system of rooks, Mur- 

 chison. 



Sedgwick and MurcMson, Cam- 

 brian and Silurian, Dana, 

 .T. D. 



Area of continental progress in 

 North America, Dana, J. D. 



Hercynian question, Clarke, J. 

 M.; Waloott. 



Quebec group of Logan, Daw- 

 son, J. W. 



1891. Geology of Quebec City, Ami. 

 Age of beds at Point Pleasant, 



Ohio, James, J. F. 

 Age of rocks at Quebec, Sel- 

 wyn. 

 Classification of Quebec group 

 rocks, Waloott. 

 Simonds, Fred. W. The geology of 

 Ithaca, N. Y., and the vicinity. 

 Am. Nat., vol. 11, pp. 49-51, 1877. 



The geology of Washington County. 



Geol. Surv. Arkansas, Report, 1888, vol. 4, 

 pp. 1-W8, plates, 1891. 



Abstract, Am. Jonr. Soi., 3d series, vol. 42, p. 

 347 (i p.). 

 Simons, M. H. Mud lumps and mounds 

 near New Orleans. 

 Am. Nat., vol. 16, pp. 419-430, 1882. 

 Simpson, James H. Journal of a mili- 

 tary reconnaissance from Santa Fe, N. 

 Mex., to the Navajo country. 



Beports of the Secretary of War, witli recon- 

 Daissance of routes from San Antonio to El 

 Paso by Johnson and others [etc.], 31st Cong., 

 1st seas.. Senate Ex. Doc. IFo. 64, pp. 56-138, 

 "Washington, 1850. 



[ ?] Schedule of minerals collected 



along the route from Santa Fe, N. Mex., 

 to Chelly, in the Navajo country. 



Keporta of the Secretary of "War, with recon- 

 naissance of routea from San Antonio to El 

 Paso, by Johnson and others [etc.], 31st Cong., 

 let sess.. Senate Ex. Doc. No, 64, pp. 146-148, 

 "Washington, 1850. 



[Sinclair, R. B.] On the contorted 

 quartz lode at Waverly. 



Nova Scotia Inst., Nat. Sci., Trans., vol. 1, 

 part 3, pp. 142-145, 1865. 



[Singleton, H. K., Huntington, J. H., 

 Monroe, J. H., and. ] Maryland [build- 

 ing stone] . 



loth Census IT. S., Eeport on building stob'es 

 of United States, and statistics of quarry 

 industries for 1880, pp. 175-178, bound as 

 part of Tol. X, bnt with separate pagination, 

 "Washington, 1884. 



