of-$>eatan&<£6lD* 5* 



And on this occafion I fhall ven- 

 ture to adde 5 that I have fometimcs 

 doubted 3 whether the Incalefcence 

 may not much depend upon the par- 

 ticular Difpofition of the calcined 

 body , which being deprived of its 

 former moifture 3 and made more 

 porous by the fire., doth by the help 

 of thofe igneous Effluviums, for the 

 moft part of a faline nature , that 

 are difperfed through it, and adhere 

 to it, acquire fuch a Texture, that 

 the water impell'd by its own weight, 

 and the preffure of the Atmofphere, 

 is able to get into a multitude of its 

 pores at once, and fuddenly diffolve 

 the Igneous and Alcalizate Salt it e- 

 very where meets with there and 

 briskly disjoyn the earthy and folid 

 particles , that were blended with 

 them 5 which being exceeding nume- 

 rous , though each of them perhaps 

 be very minute, and moves but a^e- 

 ry little way , yet their multitude 

 makes the confufed agitation of the 

 whole aggregate of them, and of the 

 particles of the water and fait vehe- 

 ment 



