77 Geological Bibliography of Virginia 21 



Fertilizers, by D. T. Day, p. 445-473- 



Virginia, see p. 469; Lime, p. 410. 

 Gold and Silver, pp. 200-207. 



Virginia, see pp. 200-202. 

 Gypsum, by H. S. Sproull, pp. 458-464- 



Virginia, see p. 459. 

 Iron, by Jas. M. Swank, p. 180-199. 



Virginia, see pp. 182-186, 199. ' 



Manganese, by J. D. Weeks, 303-356- 



Virginia, see pp. 307-328, map opp. p. 305- 

 Mineral Waters, by A. C. Peale, pp. 536-543- 



Virginia, see pp. 541-542. 

 Precious Stones, by G. F. Kunz, 437-444- 



Virginia, see p. 441. 

 Pyrites, by H. Davis, pp. 501-517- 



Virginia, see pp. 504-506. 



Tin, pp. 370-385- 

 Virginia, see p. 371. 



Mineral Resources of the United States, 1886. 



Coal, by Chas. A. Ashburner, pp. 224-377. 



Virginia, see pp. 230, 352-356. 

 The Manufaaure of Coke, by J. D. Weeks, pp. 378-438- 



Virginia, see pp. 378, 422-423. 

 Gold and Silver, pp. 104-108. 



Virginia, see pp. 104-105. 

 Strucflural Material, by Wm. C. Day, pp. 517-580. 



Virginia, see p. 529; Granite, p. 537; Marble, p. 544- 

 Iron, by Jas. M. Swank, 11-103. 



Virginia, see pp. 18, 33, 77-8i- 

 Manganese, by J. D. Weeks, pp. 180-213. 



Virginia, see pp. 181, 194-196. 

 Fertilizers, pp. 606-627. 



Virginia: Manufadluring Fertilizers, p. 625. 

 Mineral Waters, by A. C. Peale, pp. 7 15-72 1- 



Virginia, see pp. 719-721. 

 Mineral Paints, by M. Benjamin, pp. 702-714. 



Viginia: Ochre, pp. 708-709. 

 Pyrites, by R. P. Roth well, pp. 650-675. 



Virginia, see pp. 653-654. 

 Salt, by Wm. A. Raborg, pp. 628-641. 



Virginia, see p. 628. 



Mineral Resources of the United States, 1887. 



Coal, Chas. A. Ashburner, pp. 168-382. 



Virginia, see pp. 171, 360-367. 

 The Manufaaure of Coke, by J. D. Weeks, pp. 383-435- 



