Part IF. of th Earth 



much that in iome placps the Fkres 

 Suiphwris are gathered in confiderahle 

 plenty near theft Spiracles ': Ibrtie it 

 bears in Steams up into the Air, and 

 this in (uch quantity too as to be iria- 

 pifeft to the Smell, efpecially the Sul- 

 phur, th^ Mineral fo particularly af- 

 feding thifi Senfe. 



That the Heat which is continually 

 paffing up towards the Tkrm^y brings 

 thither along with it Particles of Spar, 

 Alum, Sulphur, Nitre, and othep Mi- 

 nerals in filch quantity, that theft or- 

 di^iarily as much exceed the common 

 JcihU * in plenty of this mineral * 

 Matter as they do in Heat. That this^jj^ ' 

 Heat, afcending out of the Therm4y 

 bears up with it not only Water, io 

 form of Vapour, but likewife mineral 

 Matter ; fame whereof it affixes to the 

 Sides and Arches of the Grotto's, where 

 thoSt Therms ^n^^m fuch : or, if they 

 he covered with BMildi^igs, to the Walls 

 and Roofs of thofe Buildings: to the 

 Pipes through which the Water is con- 

 veyed, or the like. That Sulphur is 

 in fome places colleQ:ed very plentiful- 

 ly adhering to the Stone of theleGrotts, 

 and Buildings: yea Ibmetimes Spar, 

 and other craffer Minerals, are thus 



mounted 



/ 



