CAPILLAKY MOVEMEXT OF SOIL MOISTURE. 
43 
The striking feature of Table 32 is the fact that as the flumes re- 
cede from the vertical the rate of movement clay by clay is more uni- 
form and more constant. In the flume inclined downward at an 
angle of 30° the extent of movement of moisture on the fifteenth day 
or one-half the time was 65 per cent of the total movement of the 
moisture in 30 days. In flume 32 this percentage was 68. In flume 
31 or the horizontal. flume it was 81 per cent: in flume 39 it was 83 
per cent: and in the flume with a vertical angle of 15° it was 92 per 
cent. 
To present the above data in a more condensed form, figure T has 
been prepared. 
Fig. 7. — Comparison of rate of movement of moisture in flumes of various slopes ; all 
fumes containing Riverside heavy decomposed granite loam. Also shows appearance 
of moisture curves from top to bottom of flumes, except Nos. 32 and 39. 
Figure 7 shows the relative positions of the moisture in the 
various flumes with reference to the surface of the water in the tanks 
at various times during the experiment. The lines on the drawing 
showing the direction of the flumes represent the longitudinal axes 
of the flumes along their center lines. The figures show the direc- 
tions and the paths through which the moisture from the tanks must 
travel along the center lines of the flumes. It is obvious that during 
the forepart of the experiment the lines joining the points represent- 
ing the positions of the moisture on the different dates are very ir- 
regular. It shows that there is a tendency of the curve joining these 
