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 

 nf the hole and from the surface of the ground, is shown in Table II. 



TABtE 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. 





1 



2 



3 



4 



5 



6 



7 



8 



Depth of hole inches - - 



Time required: 



Surface. 

 4 



6 



36 



9 



39 



12 

 100 



15 



18 



21 



24 





18 

 6 



21 



23 



22| 



-30 

 5 



26 



24 



Depth of soil penetrated — inches . . 



Depth below surface to which water 



penetrated inches. . 



16 

 16 



19 



25 



16 



25 



10 

 22 



6 

 30 



As the line of demarcation between the wet and the dry soil was 

 jilways very sharp, the exact depth of penetration was easily de- 



-S'/V/A/ je /t^/A/ 33Af//\/ //^/ffOM. /3/y/?S 2'S/y/?S. SO//^S: 24/t'/?s. 



Fjo. 2. — Diagram showing tho time required for 2 gallons of water to disappear from 

 holcK 8 in(,-hos 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 

 hy 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. 



teimined. The plan of the experiment and the results are shown 

 ^Tapliic-jilly in figure 2. 



K study of Table II and fif;ni-<' 2 shows that, at least for the cracked 

 area, the time required for (he water to disappear depended upon 

 the distance from the surface of the point of af)plicati()n. No doubt, 

 this was becau.se tlx; water apf)lied near the surface escaped through 

 (•racks in the .soil. That this was the case is shown by the wide dif- 



