Part lit of the Earths ' i ipj 



ralifts have believed : But to the before- 

 mention^ Subterranean Heat oi Fire. 

 That thefe Baths Continually efnit a 

 manifeft and very ftnfibie Heat : naf 

 fbme of them have been obferved at 

 fbme times to fend forth an aftual and 

 vifible Flame. That not only thefe, 

 but all other Springs whatever, have 

 in them fbme degree of Heat '^^ ( none " it // ifu 

 of them ever Freezing, no not in the J^f ^^^^ 

 longefl and feverefl: Frofts) but more heat tZt 

 efpecially thofe which arife where J^^^'J^^^^^ 

 there is fuch a Site and Difpofitiori oVunutLm 

 the Strata within the Earth as gives /^^'^ 

 ' free and eafie Admiffion to this Heat, ^^l^^g^^ 

 and favours its Afcent to the Surface ; 8. fupra, 

 where perfpiring forth at the fame 

 Outlets vi^ith the Water of the Spring, 

 it by that means heats it, more or lefs, 

 as it chanceth to be difpenfed forth in 

 greater or leffer quantity. That as the 

 Heat of all Springs is owing to this 

 fubterraneous Fire, fb wherever there 

 are any extraordinary Diicharges of 

 this Fire, there alio are the neighbour- 

 ing Springs hotter than ordinary ; wit- 

 iiefs the many Hot-Springs near Mtna^ 

 Vtfuvim^ Hecla^ and all other t^ulca- 

 noes. That the Heat of the T^er;^^ is 

 not conftantj and always alike 5 the 



L - lame: 



