Bulletin 7 78 



Virginia, see pp. 383, 421. 

 Gold and Silver, pp. 58-65. 



Virginia, see pp. 58-59. 

 Strudlural Materials, by Wm. C. Day, pp. 503-551. 



Virginia: Structural Materials, p. 511; Granite, pp. 514-515. 

 Iron, by Jas. M. Swank, pp. 10-27. 



Virginia, see pp. 11-12, 

 Manganese, by J. D. Weeks, pp. 144-167. 



Virginia, see pp. 151-152. 

 Useful Minerals of the United States, by A. Williams, jr., 



pp. 689-812. 



Virginia, see pp. 799-803. 

 Salt, by Wm. A. Raborg, pp. 611-625. 



Virginia, see p. 611. 



Tin, pp. 134-137- 

 Virginia, see p. 136. 



- Mineral Resources of the United States, 1888. 

 Strucftural Materials, by Wm. C. Day, pp. 516-575. 



Virginia: Cement, p. 551; Structural Material, p. 535; Lime, p. 556; 

 Brick Industry, pp. 563-565; Granite, p. 536; Marble, p. 544; Slate, 

 P- 547- 

 Coal, by C. A. Ashburner, pp. 168-394. 



Virginia, see pp. 171, 206, 377-381. 

 The Manufa(fture of Coke, by J. D. Weeks, pp 395-441. 



Virginia, see pp. 395, 397, 398, 400, 402-403, 404, 405, 425-426. 

 Precious Stones, by G. F. Kunz, pp. 580-585. 



Virginia: Garnet, p. 581. 

 Gold and Silver, pp. 36-42. 



Virginia, .see pp. 36-37. 

 Iron, by Jas. M. Swank, pp. 12-32. 



Virginia, see pp. 14, 23. 

 Manganese, by J. D. Weeks, pp. 123-143. 



Virginia, pp. 123, 124, 125, 132-133. 

 Mica, pp. 614-615. 



Virginia, see p. 614. 

 Mineral Waters, by A. C. Peale, pp. 623-630. 



Virginia, see pp. 629-630. 

 Salt, by Wm. A. Raborg, pp. 597-612. 



Virginia, see pp. 597-598, 611. 



- Mineral Resources of the United States, 1889-90. 

 Barytes, p. 513. 



Virginia, see p. 513. 

 Coal, by E. W. Parker, pp. 145-186. 



Virginia, see pp. 146, 272-275. 

 Cement, pp. 461-464. 



