200 The Natural Hijlory Part IV. 



Naples^ Pozzuoioj and in other Parts 

 of the World : Therm^^ or Hot-Jprmgs : 

 or fiery Eruftations, fueh as burft forth 

 of the Earth during Earthquakes: I 

 fay wherever there are fiich or the like 

 Difcharges of this Subterranean Fire, 

 there likewife is mineral Matter, more 

 or left, hurried up along with it. That 

 even the Heat of the Sun, and indeed 

 any other, though but an accidental 

 Heat, hath the fame Effed, and con- 

 tributes to the raifing of mineral Mat- 

 ter out of the Earth. 



That Mtna^ Vefuvim^ and the other 

 Vulcano's difcharge forth, together with 

 the Fire, not only nietallick and mine- 

 ral Matter in great quantity, but Sand 

 likewife, and huge Stones, coffing them ^ 

 up fbmetimes to a very great height in 

 the Air. 



" That ^he Heat, which arifes out of 

 the l^^f^y Spiracles^ alio brings forth 

 along with it mineral Matter, and 

 particularly Nitre, and Sulphur ; fbme 

 6f which it affixes to the tops and fides 

 of the Grotto's as it paflfes, whicli 

 Grotto's are ufually fb hot as to ferve 

 for natural Stoves, or Sweating- Vaults: 

 ibme it depofes near unto, and even 

 iipon, the Surface of the Earth 5 infb- 

 ^'i''- ^ ' ' ' much 



