I09 GEOI.OGICAL Bibliography of Virginia 53 



Marcou, Jules, The Triassic Flora of Richmond, Virginia. 

 Amer. Geol. , vol. v, pp. 160-174, 1890. 



Marcou, Jules, & Jno. B., Catalogue of Geological Maps of 

 America (North and South), 1752-1881. 



Bull. U. S. Geol. Surv., No. 7, 184 pp.. 1884. 

 For Virginia, see pt. xii, pp. 102-112. 



Marquis de Chastelleux. Description of the Natural Bridge, 

 called in Virginia, Rocky Bridge, 1782. 



The Virginias, vol. v, pp. 88, 90, illustrated, 1884. 



Marsh, O. C, Notice of a New Genus Sauropoda and Other 

 New Dinosauria from the Potomac Formation. 



Amer. Jour. Sci., 3d ser., vol. xxxv, pp. 88-94, illus- 

 trated, 1888. 



{Abst.) Amer. Geol., vol. i, p. 136, 1888. 



The Jurassic Formation on the Atlantic Coast. 



Amer. Jour. Sci., 4th ser., vol. ii, pp. 433-447, 1896. 

 For Virginia, see especially pp. 436-437, 443-444. 

 Sci., new ser., vol. iv, pp. 805-816, 1896. 

 For Virginia, see especially pp. 807-808, 813. 



Martyn, Wm., Pyrites. 



Min, Res. U. S., 1883-84, pp. 877-905. 

 For Virginia, see pp. 879-880. 



Massie, F. A., "Report on the Martha Cash Tin Mines" in 

 the Prospe(5tus of the Virginia Tin Mining and Manu- 

 fadluring Company, 1885. (Not seen). 



Maury, M. P., Notice of the Gold Veins of the United States 

 Mine near Fredericksburg, Virginia. 

 Amer. Jour. Sci., vol. xxxii, pp. 183-185, 325-330, 1837. 



Physical Survey of Virginia. Her Geographical Posi- 

 tion, Its Commercial Advantages and Natural Import- 

 ance. Preliminary Report. 



Richmond, 1868, 90 pp. and 3 maps. \ 

 New York, D. Van Nostrand, 1869. , 



Catalogue of the West Virginia State Exhibit at the 



International Exhibition at Philadelphia, 1876. 

 Philadelphia, 1876, 38 pp. 



Maury, M. F., & Fontaine, W. M., Resources of West 

 Virginia. 



Wheeling, 1876, 430 pp. 



Contains some geological information. 



