GEOLOGICAL SURVEY PUBLICATIONS ON GYPSUM, SALT, BORAX, 
AND SODA, 
The more important publications of the United States Geological 
Survey on the natural lime, sodium, and potassium salts included in 
this group are the following: 
Campbell, M. R. Reconnaissance of the borax deposits of Death Valley and 
Mohave Desert. Bulletin No. 200. 23 pp. 1902. 
Chatard, T. M. Salt-making processes in the United States. In Seventh Ann. 
Rept., pp. 491-535. 1888. 
Day, W. C. Potassium salts. In Mineral Resources U. S. for 1887, pp. 628- 
650. 1888. 
Sodium salts. In Mineral Resources U. S. for 1887, pp. 651-658. 1888. 
Hilgard, E. W. The salines of Louisiana. In Mineral Resources U. S. for 
1882, pp. 554-565. 1883. 
Orton, E. Gypsum or land plaster in Ohio. In Mineral Resources U. S. for 
1887, pp. 596-601. 1888. 
Packard, R. L. Natural sodium salts. In Mineral Resources U. S. for 1893, 
pp. 728-738. 1894. 
Peale, A. C. Natural mineral waters of the United States. In Fourteenth 
Ann. Rept.. Pt. II, pp. 49-88. 1894. 
Yale, C. G. Borax. In Mineral Resources U. S. for 1889-1890, pp. 494-506. 
1892. 
Bull. 213—03 27 417 
