A SURVEY OF THE FERTILIZER INDUSTRY. 97 
Whitney, Milton. Fertilizers on soils used for oats, hay, and miscellaneous crops. 
Soils Bul. 67. 73 p. 1910. 
Woods, A. F. Fertilizers for special crops. Yearbook 1902, p. 553-572. 
Woods, A. F. The relation of nutrition to the health of plants. Yearbook 1901, p. 
155-176. pl. II-VIII. Sep. 225. 
AMMONTA. 
Boykin, E. B. Comparative value of whole cotton seed and cottonseed meal in ferti- 
lizing cotton. Farmers’ Bul. 286. 14 p. 1907. 
Brown, Frederick W. The sources of our nitrogenous fertilizers. Yearbook 1917. p. 
139-146. Sep. 729. 
Gale, H. S. Our mineral supplies—nitrates. U.S. Geol. Surv. Bul. 666-Z. 4 p. 
[1917.] 
Gilbert, Chester G. Sources of nitrogen compounds in the United States. Smith- 
sonian Institution, Pub. 2421. [2]+12p. 1916. 
Lathrop, Elbert C. The nitrogen of processed fertilizers. Dept. Bul. 158. 14 p. 
1914. 
Method of sale of nitrate of soda to farmers by the United States Government. Sec. 
Cires 78.) py. 1918: 
Schreiner, Oswald, and Skinner, J. J. Nitrogenous soil constituents and their bear- 
ing on soil fertility. Soils Bul. 87. 84p. 1912. 
Scott, Ernest Kilburn. The manufacture of nitrates from the atmosphere. Smith- 
sonian Institution Pub. 2291. [1]+359-384 p., il., 1 pl., 2p. of pl. 1914. (From 
Report, 1913.) 
Stuntz, 8. C., comp. Reference list of electric fixation of atmospheric nitrogen and 
use of calcium cyanamid and nitrate on soils. Soils Bul. 63. 89 p. 1910. 
Turrentine, J. W. Nitrogenous fertilizers obtainable in the United States. Dept. 
Bules7. 12 p. 1913. 
Turrentine, J. W. The fish-scrap fertilizer industry of the Atlantic Coast. Dept. 
Bul. 2. 50p. 6pl. 1913. 
Turrentine, J. W. Utilization of fish waste of the Pacific Coast for fertilizer. Dept. 
Bul. 150. 7lp. 6pl. 1915. 
LIME. 
Loew, Oscar, and May, D. W. The relation of lime and magnesia to plant growth. 
Plant Industry Bul.1. 53p. 3pl. 1901. 
Loughlin, G. F. Lime in 1916. U.S. Geol. Surv., Mineral resources of the United 
States, 1916, pt., 2:4, p. 433-462. 
Loughlin, G. H. Our mineral supplies—limestone and lime. U.S. Geol. Surv. Bul. 
666-R. 6p. [1917]. 
Shorey, Edmund C. The principles of the liming of soils. Farmers’ Bul. 921. 30 p. 
5 fig. 1918. 
Stone, R.W. Our mineral supplies—gypsum. U.S. Geol. Surv. Bul. 666-E. [1917]. 
3 p. 
Wheeler, H.J. The liming of soils. Farmers’ Bul.77. Rev.ed. 23p. 1905. 
MANGANESE. 
Hewett, D. F. Our mineral supplies—manganese. U.S. Geol. Surv. Bul. 666-C. 
91a 12 p. 
Skinner, J. J., and Reid, F.R. The action of maganese under acid and neutral soil 
conditions. Dept. Bul. 441. 12 p. 1916. 
Sullivan, M. X., and Robinson, W. O. Manganese as a fertilizer. Soils Circ. 75. 
Sp. 1913. 
