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alfoof the wonderful! Intermittent Springs ©bfer\''ed up and 
down in this country^ which leads iiim to the Examinati- 
on of the caufes of the Rife of Springs and Wells, of which 
the World has had a /^elation iome time fince, when we 
gave an Account of Dr. Plotis Latine Book De Origine 
Fontium^ the R^eafons whereof are here agais at large repeat- 
ed in EngUjh, Afterwards he particularly enumerates what 
Fountaines are Medicinal , as thofe at Willowbridge ; what 
abound in Salt, as the Brine Pitts at Wefto^^ which tho' in- 
feriour to thofe in Worcefierfhire and Chejhire by reafbn of the 
wcakenefTe of the Liquor, yet after a tedious procefTeto 
Cryftalife the Salt, become very ufcful to the whole Coun- 
trey ; and laftly, what are for Colour, or Taft, or any other 
Accident, remarkable , as a Well between Oi/^r and A^^/)^rr 
Tef2ey which in Autumn fends up a great Quantity of fmall 
Bones of Frogs, which creeping into thofe Caverns, whence 
the Springs come, are killed by the cold ; and the acidity of 
the water corroding the flefh, thofe Bones are driven up and 
carried away by the ftreame of the Fountain. Cap. II. 
From Waters our Author paffes to Earths and Minerals: 
Of the firfl: of which the Number is very great, efpecially 
of fine Glays for Pottery-Ware and Bricks : But the Coale- 
Workes with the Iron-Mines moft deferve our confiderati- 
on. The Coale-Mines are very accurately dcferibed, both 
as to their Inclining Pofition, or Dipping under the furface 
of the Earth, and as to their feveral differences ingoodnels 
ajid afefulnefi^fuch are thofe ofC^;?/?^/,with which theChoire 
of Lit Me Id Cathedral is paved; thofe of Wedneshury moft 
fit for Culinary Fires, &c. Upon this occafion die Nature 
of Damps is examined, which are refolved into the ftagna* 
tion of the Air contained within the Rifts of the Coale, 
that are emptied of the running Water ( which in Virgin* 
Mines always fills the Rifts, arid keeps them froiii this flag- 
nating Air ) by the Soughes made for that purpofe ; or which 
Ibmetimes are occafioned by working fe) deep, as that there- ' 
by the Intervention of the upper Air is wholly iloppt. 
C^. ni. Be- 
