Dec. io, 1917 
Movement of Soluble Salts through Soils 
537 
Theses fr-o/rxJa/f 
Fig. 3.—Graph of the freezing-point-lowerings after 10 days, induced by the addition of 2 per cent of 
potassium chlorid to silt loam with 20 per cent of moisture. 
Potassium chlorid in solution amounting to 2 per cent of the treated 
layer of soil was added to the silt loam and the changes induced in the 
concentration of the soil solution in the soil were determined in the usual 
manner. The soil contained 20 per cent of water. The results obtained 
at the end of 5 and 10 day periods, respectively, are presented in Table 
III, and graphically shown in figures 2 and 3. Again changes in the con- 
