Chap, a 3. ^iTreAttfeof BODIES. 



it rifcth in bubbles : buc much more efficacioufly ; for their body 

 is notftrong enough to keep in the heat: and therefore thole 

 bubbles fall again j whereas if it were, thofe bubbles would 

 rife higher and higher, and ftretch theinfelves longer and long- 

 er (as when the feap-boylers do boyl a ftrong unftuous lye 

 intofbap;) and every one of them would be as it were a lit- 

 tle brook, whereof the channell would be the enclofing fub- 

 ftance; and the inward fmoke that extcndeth it, might be com. 

 pared to the water of it : as when a glaffe is blown out by. fire 

 and aire into a long figure. 



Now we may remember,how we have faid, where we treat- 

 ed of the production and refolution of mixed bodies, that there 

 are two forts of liquid fubftamiall parts, which by the opera- 

 tion of fire arc fent out of the body it worketh upon ; the wa- 

 tery, and the oyly parts. For though there appear fbmetimes 

 fome very fubtile and ethereall parts of a third kind ( which 

 are the aquae ardemcs, or burning fpirits ; ) yet in fuch a clofc 

 diftilling of circulation as this is, they are not fevered by them- 

 fclves, but do accompany the reft ; and efpecially the wa- 

 tery parts : which are of a nature, that the rifing Ethereall 

 fpirits eafily mingle with, and extend themfelves in it; whereby 

 the water bfcometh more efficacious, and the fpirits lefle fugitive. 



Of thefe liquid parts which the fire fendeth away, the watery 

 ones are the firft., as being the eafieft to be raifcd : the oyly 

 parts rife more difficultly, and therefore do come laft. And in 

 the fame manner it happeneth in this emiflion ofbrcoks, the 

 watery and oyly fleams will each of them fly into different re- 

 fer res : and if there arrive unto them abundance of their own 

 quality, each of them muft make a fubftance of its own nature 

 by fettling in a convenient place,and by dueconcoftion. Which 

 fubftance after it is made and confirmed, if more humidity and 

 heat do prcfle it, will again break forth into other little chan- 

 nels. But when the watery and oyly parts are boyledaway, 

 there remain yet behindc other more folid and fixed parts, 

 and more ftrongly incorporated with fire then either of thefe : 

 which yet cannot drie up into a fiery fait, becaufe a conti- 

 nuall acceffion of humour fceepeth them alwayes flowing : 

 and fo they become like a couldron of boyling fire. Which 

 muft propagate k felf as wide as either of the others ; fince the 



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