86 Bulletin 7 142 



i6th Ann'l Rep't U. S. Geol. Surv., pt. iv, pp. 218-304, 

 1894-95. 



For Virginia, see pp. 291-296. 



The Elk Garden and Upper Potomac Coal Fields of 



West Virginia. 



Trans. Amer. Inst. Min. Engrs., vol. xxiv, pp. 351-364, 

 maps, 1894. 



Manganese. 



i6th Ann'l Rep't U. S. Geol. Surv., pt, iii, pp. 389-457, 

 1894-95. 



For Virginia, see pp. 426-434. 



For further references, see under Da}', D. T. , and Peckham, S. F. 



Wendt, A. F., The Pyrites Deposits of the Alleghanies. 



Engr. and Min. Jour., vol. xlii, pp. 22-24, illustrated, 

 1886. 



Reprinted from vol. vii of the School of Mines Ouarterl}', N. Y., 

 1880. 



West Virginia Board of Regents. Third Annual Report 

 of the Board of Regents of the University of West Vir- 

 ginia for the Year 1870. 



Wheeling, 1871. 



"Geological Examination of Monongalia County, West Vir- 

 ginia, by J. J. Stevenson; with a List of Fossils and Descriptions, 

 by F. B. Meek," pp. 40-73, "B." 



White, Chas. A., Report of a Visit to the Luray Cavern, 

 in Page County, Virginia, (in Trenton Limestone). 



Ann'l Rep't Smithsonian Inst., 1881, pp. 449-460, 6 

 cuts; 1 88 1. 



Geol. Record, 1880-84 incl., London, 1888, p. 406. 



A Review of the Fossil Ostreidse of North America, and 



a Comparison of the Fossil with the Living Forms; with 

 Appendices by Prof. Angelo Heilprin and Mr. John A. 

 Ryder. 



Message and Documents, Department of the Interior, 

 Washington, U. S. Geol. Surv., vol. iii, pp. 272-430, 82 pis., 

 1883-84. 



For Virginia, see appendix i, North American Tertiary Ostreidse, 

 by A. Heilprin, pp. 309-316. 



Correlation Papers — Cretaceous. 



Bull. U. S. Geol. Surv., No. 82, 1891. v & 273 pp. 

 For Virginia, see especially pp. 90-91. 



