an artificial Spri^ig of lValct\ j 



wliicli was previoufly cut iu a conical form at one end, an 4 

 armed with an iron ring at the other, was driven into the top of 

 this hole, and flood np about two yards from the bottom of 

 the well, and being furrounded with well-rammed clny, the 

 new water afcended iu a fmall ftream through the wooden 

 pipe. 



.Our next operation was to build a wail of clay againil: the 

 moraiiy fides of t]ie well, with a wall of well-bricks inter- 

 nally, up to the top of it. This completely flopped out every 

 drop of the old water; and, on taking out the plug which 

 had been put in the wooden pipe, the new water in two or 

 three days role up to the top, and flowed over the edges of the 

 weJL 



Afterwards, to gratify my curiofity in feeing how high the 

 new fpring would rife, and for the agreeable purpofe of pro- 

 curing the water at all times quite cold and frefh, I directed 

 a pipe of lead, about eight yards long, and three-quarters of 

 an inch diameter, to be introduced through the wooden pipe 

 defcribed above, into the flratum of marl at the bottom of the 

 well, fo as to fland about three feet above the lurface of the 

 ground. Near the bottom of this leaden pipe was fewed,. be- 

 tween two leaden rins-S or {l^iieties,? an inverted cone of iliff 

 Ipatherjriiatp.jyhich fome wool was, fluffed to ftretch it out, fo 

 that, after having pafled through ttje \yopden pipe, it might 

 '^completely fill .up the perforatipn of the clay. Another, leaden 

 ring or flanch was foldered round the leaden pipe, about two 

 yards below th;e fqrface of the ground, wdiich, with fome dou- 

 bles of flannel placed under it, was nailed on the top of the 

 -wooden pipe, by w^hich means the water was perfedlly pre- 

 cluded froni rifing between the wooden and the leaden pipes. 



B 2 Tliis 



