May 10,1924 Factors Influencing Binding Power of Soil Colloids 
507 
Substituting the values of L and C from Table IV in this equation and solving 
for the values of k and n which most nearly satisfy all of the equations 
L=0A2 O 24 
This equation is shown graphically in figure 5 and also the observed values 
from Table IV. 
If we let L c represent the load per gram of colloid in kilograms, then by defini¬ 
tion 
L C =^X100 
Substituting in the above equation 
0 42 C 1 - 2 * 
L c~——£r —X100 =42 C 0 - 24 
Fig. 5.—The relation between the load per gram of soil and the amount of colloid. 
This indicates that under these conditions the load per gram of colloid de¬ 
pends upon the amount of colloid in the soil, thus 
C= 1 ,L C = 42 
C = 20, L c — 86 
(7 = 50, L c = 107 
Table IV shows this to be true in a general way, the soils with a small amount 
of colloid having a low load per gram of colloid and vice versa. However, the 
variations from the curve of the load per gram of soil as indicated in figure 4, 
indicate a much larger variation in the load per gram of colloid. Considering the 
