79 Geological Bibliography of Virginia 23 



Virginia, see p. 461. 

 Gold and Silver, by Wm. Kent, pp. 48-55- 



Virginia, see p. 49. 

 Stone", by Wm. C. Day, pp. 373-440- 



Virginia: Granite, pp. 374. 435; Limestone, pp. 373. 43^; Marble, 

 pp. 375- 436; Sandstone, pp. 374, 436; Slate, pp. 376, 436. 

 Gypsum, pp. 465-467. 



Virginia, see pp. 465, 466. 

 Iron, by Jno. Birkinbine, pp. 23-47. 



Virginia, see pp. 24, 31-32, 35, 36, 39. 

 Lithographic Stone, pp. 519-520. 



Virginia, see p. 519. 

 Manganese, by J. D. Weeks, pp. 127- [36. 



Virginia, see pp. 127, 135-136- 

 Mineral Waters, by A. C. Peale, pp. 521-535- 



Virginia, see pp. 522, 533-534- 

 Mineral Paints, pp. 508-512. 



Virginia: Ochre, p. 508. 

 Tin, pp. r 19-123. 



Virginia, see pp. 120, 121. 

 Salt, by Wm. A. Raborg, pp. 482-492. 



Virginia, see p. 482, 



Mineral Resources of the United States, 1891. 



Iron Ores, by Jno. Birkinbine, pp. 10-46, illustrated. 



Virginia, see pp. 12, 23-24. 

 Barytes, pp. 599-600. 



Virginia, see p. 599. 

 Natural and Artificial Cements, pp. 529-538. 



Virginia, see p. 532. 

 Clay Meterials of the United States, by Robt. T. Hill, 



pp. 474-528. 



Virginia, see p. 505. 

 Coal, by E. W. Parker, pp. 176-356. 



Virginia, see pp. 180-181, 330-331. 

 The Manufaaure of Coke, by J. D. Weeks, pp. 357-402. 



Virginia, see pp. 360, 361, 362, 363, 365, 366, 367, 368, 370, 372, 

 373, 375, 395-396. 

 Gold and Silver, pp. 74-80. 



Virginia, see pp. 76-77. 

 Stone, by Wm. C. Day, pp. 456-473. 



Virginia: Granite, pp. 457, 460; Sandstone, pp. 461, 463; Lime- 

 stone, p. 467; Marble, p. 470; Slate, pp. 472, 473. 

 Gypsum, by E. W. Parker, 580-583. 



Virginia, see pp. 580, 582. 

 Manganese, by J. D. Weeks, pp. 126-146. 



Virginia, see pp. 127, 137-138. 



