CHEMICAL COMPOSITION OF ALLUVIAL SOILS 53 



Table V, continued 



Chemical Composition of Soils Deposited by Water. Strong 



Hydiocliloric Acid Analyses 



from the surface layer of the upland soils, and they are 

 not old enough to have lost this supply of organic matter 

 by decay. Frequently, the supply is replenished by 

 annual additions. 



Table V illustrates the variations in the propor- 

 tion of the different elements in water deposits of 



