MEXICO 



experiment stations or in the United States Bureau of 

 Soils. (See Table II.) These publications show that the 

 composition of the alkali salts as well as the methods of 

 reclamation vary greatly. 



TABLE II. COMPOSITION OF ALKALI FROM DIFFERENT PARTS OF 



THE UNITCD STATES EXPRESSED IN PERCENTAGE OF 



DIFFERENT SALTS 



Mexico. The greater part of the high plateau of 

 Mexico has an arid climate. This, like all similar regions, 

 has had but comparatively little of the soluble salts 

 contained in the country rock removed. In this section 

 there. are many large valleys having no outlets. During 



1 Colorado Exp. Sta., Bui. 155, p. 10. 



2 Hilgard"Soils,"p. 442. 



3 U. S. D. A. Bur. Soils, Bui. 35, p. 79. 



4 U. S. D. A. Bur. Soils, Bui. 35, p. 103. 

 6 U. S. D. A. Bur. Soils, Bui. 35, p. 109. 



