a Te a ee ET AT ET See SRL ke

LN TR ODE CTO N. XIX

kind of fubterraneous canal, fo as, by the natural power of gravity, to be fqueezed forcibly through fmall fffures in, the fuperior ftratum of clay. If fo, it would neceflarily follow, that fhould a hole be dug through the fuperincumbent ftratum of clay, fo as to reach the bed of the refervoir, the water would be allowed to iffue freely through that

opening, and to run off the ground by it’s natu- ral level; and thus would the accumulated water, whff@h occafioned the preflure, be gradually ait charged, after which it could no longer be forced

up through the fmall fiffures in the clay; and, of 5 9 0

the wetnefs, that had arifen folely fron

m courle, | fr 1] rene 9 rya-+4 that caufe, muft be gradually removed. Gi this reafoning, which feemed perfeétly conclufive,

and which was confirmed by obferving that the

fubfoil of that field was every i a very fig ry fH

oe mixed with{mall ftones, the dry weather was no fooner fet in, than[ put a.man to dig a pit as

near to the edge or the{waggle as he could ap-

7© Seated L° proach, ordering nim to penetrate dire ly down- vards. making the pit Nee Bee ee= wards, Masing the pit no larger than was fufh-

cient to allow him to work, and to proceed with-

VIL out‘interruption, until he fhould perceive that ‘on makine his Fy Ira it} suid fo: 1 21a

{ Naini 1A Bis LER ORGS,{ INEUIC Und’ as if 1¢ were fomewhat hollow' below. On_ obfervi

ae BS eee eee tao’ WANs Cae Se La loll,: this, he was defired immediately to defiftt. until

cy

Cc 4