WATER PENETRATION IN GUMBO SOILS. 7 
The time required for the water to disappear from each hole and 
the depth to which it penetrated, as measured both from the bottom 
of the hole and from the surface of the ground, is shown in Table IT. 
TABLE II.—Time required for 2 gallons of water to disappear from 8-inch holes 
bored to different depths in the soil and the depth to which the water 
penetrated. 
Hole No. 
Specidication 
1 2 3 4 3 6 7 8 
Depthvofiholenessns sis inches. -.] Surface. | 6 9 12 15 18 21 24 
Time required: 
IME TATTE SS ences ree pee ate 4 36 39 OOO ete eas BIA Sore Cea he ee espera 
ETO MESH ERP oe ser eer ine version SP Mi uiarteasias elias he alee eee ee oh 18 23 30 24 
Depth of soil penetrated ..-.-inches. . 16 19 16 10 6 43 5 6 
Depth below surface to which water 
MCMCLEALCd e 2 = celeeae inches. - 16 25 25 22 21 225 | 26 | 30 
As the line of demarcation between the wet and the dry soil was 
always very sharp, the exact depth of penetration was easily de- 
NUMBER OF HOLE | 
R 
g 
S 
; 
q 
Wig. 2.—Diagram showing the time required for 2 gallons of water to disappear from 
holes 8 inches in diameter bored to different depths in the soil and showing also the 
depths to which it penetrated. The heavy lines indicate the lowest points reached 
by the water from the different holes. The heavy figures below each hole indicate 
the total distance from the surface and the light figures the distance below the bottom 
of the hole. 
termined. The plan of the experiment and the results are shown 
graphically in figure 2. 
A study of Table II and figure 2 shows that, at least for the cracked 
area, the time required for the water to disappear depended upon 
the distance from the surface of the point of application. No doubt, 
this was because the water applied near the surface escaped through 
eracks in the soil. That this was the case is shown by the wide dif- 
