Show PLANS practical method found where where whore dug LAUM sub bear investigate under different dry land ideal condition sub where pan hard impervious stratum found 18 38 soil soil sail soil sail soil sail capillary rood extent condition approach ideal success torr perennial clog SUB SUB sud ION united department culture search moisture small plot half acre laid different apart viz 25 20 26 30 feet apart series determine proper sub SOIL SOIL jolt practical teeth sub hat found where dug filled six piece set end ditch water soil inexpensive supply G Invest len |