

'n 



jtt, 



} 



»T 



'1th ^... '^1 



tWo 



oie of 



%, 



' ^^t the 



cutti 



^? 



ik 



'nter. 



^P^ 'n fo 



tweut 



iHe 



J' horfe 



5 



I 



'•^at he 



5 loilo 



K 



* an h 

 alfdi 



01 



terms 



and 



orizontal 



'ameterat 

 ■^"■ofeetlonj, 



As this call 



le turf in moid 



'^iel Ii:ies, tlie 

 110 injury done 

 '^^ine, and may 



)rk^. In very 



ufeJ, their feet 



[ dr-'vlefs; or 

 horfes like the 



lo.e. SeeTran- 



n« 



e 



water i5 CO'^ 



over a r^ 



bove aefcrlbe^- 



;the 







fand-i^o"' 



is kind 



f flooct 



1 



It; 







fw 



of 





Sect. XI. i. 9. 



AND WATERING. 



26 



5 



horizontal ftrata ; but the vertical cracks were made 



the time of 



by fubterraneous fi 



In thefe vertical fiiTures the ores of 



lead, ponderous 



d 



^P 



found in the lime 



ftone rocks of Derby (hire ; and thofe of tin, and quartz, in th 



ks of Cornw 



9. The knowledge of this part of geology concerning the forma 



- - • -- be employed for many ufeful purpofes ; thu 



here the waU-fprings,or water-condufting flrata, lie fo deep 



tion of fprings may 



be acceffible at a fmall exp 



they generally exiil between th 



fecond and third, or between the third and fourth ftrata ; which rife 

 i[)to day higlier on the fummics of the adjacent mountains than th 

 firft ftratum ; and hence, when they are bored 



th 



will 



found beneath the firft ftratum only ; 



on lower p 



f th 



e 



'^j 



fe higher, than when it is 

 hich generally becomes defi 



.-nlnences of the country. 

 Thus where water, defcending in high columns between the 



ftrata of mou 



dammed up bel 



hich 



the valley deep through th 



1 



fill up the vallies ; if a hole be boi 



icumbent foil and ftrata, it frequently rifes much above the fourcc 

 of the new aperture, and fometimes above the furface of the ground 

 In finking the king's well at Sheernefs the water rofe 300 feet abovi 

 its fource in the we 

 And at Hartford in 



ted 



Philof. Tranfad. Vol. LXXIV 



in Conne£licut there is a well, which was dug fe- 

 ty feet before water was found ; and then on boring an auger 



hoi 



& 



the water rofe fo fad:, as to make it diffi 



keep it dry by pumps, till 



hole could be bl 



o 



by 



o 



powd( 



over, 



Amev 



ch was no fooncr accompliOied, than it filled, and 



d 



been 



brook for near a century. Travels through 



Lo n d 



780 



L 



In the town of Richmond in Surry, and at Inflip near Pred 

 ' Lancafliire, I am informed, that it is ufual to bore for water to 



tain depth ; and th 



wh 



found in both thofe places, it rife 



■ i> 



M 



{<i 



I ^ j-^fc- J-' 



-.-^r— r J. 



