} over) the: Helms: by; a: Kinde ,of .Exufflation, without .Vaporing || 
-\nwbrticlesvof. ugility o> 2 be ’ Fy 
Metal is turned into Glafs? and when the Metal doth but hang in the Gl 
|fie part? alfo what weight the vitrified Body bears, cempared with 
crude Body 2 Alfo becaufe Vitrificaticn is accounted, a ki eC d 
Metals, whac Vitrification will admit, of turning back ag 
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violentpenetration ? 
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For Sprouting or Branching, though it be a thing but tranfitory, and | 
a kindeof toyor pleafure ; yetthere is amore feriousufe of it: For thatit 
difcoversthe delicate motions of {pirits, when they put forth, and cannot} 
get forth, like unto hat which is in vegetables. _ 
Ss to” 
3 7 0 idly onlabas | | 
For Induration or Mollification, it is to beenquired, what will make} 
Metals harder and harder, and what will make them fofter and fofter ? “And ) 
this Enquiry tendeth to two ends ; “ “oie 
Firft, for Ufe.: As tomake Jron foft by the Fire, makes it malle- 
able.: | 
Secondly, Becaufe Induration is a degree towards Fixation; and i 7 
Mollification towards Volatility,: ,fAnd thereforethe Inquiry of them, will} 
givelighttowardstheother. |; Wii OR taguat 
WNL lid oor Ow 4 
For tough and brittle, they are much of the fame kinde with the] 
two former, but yet worthy of an Inguiry apart : Efpecially to joyn| — 
| Hardnefs to Toughnefs ; ‘as making Glafs malleable, &c. And} — 
| making Blades , ftrong to refift and pierce, and yet not cafie to} 
break. noid | 
: { Tay . sl 7 an 
For. Volatility and Fixation,, ‘it is a principal Branch to be ep-|_ 
quired. The utmoft degree of Fixation is, ‘That whereupon ise | 
| will work, nor, Strong-water joyned with Fire, if there be any fuch | 
\ Fixation poffible ; . The next is, when Fire fimply will not. work witl 
| out Strong-waters: The next is, when it will endure Fire not blo 
jor fuch a ftrength of Fire: The next is, when it will not endure Fite, | 
but: yet ismalleable : .:The’next-is,. when itis, not malleable, but yer it | 
jis not fluent, but ftupified. So, of Volatility,“ the utmott degree, is 
j when it will fice away without returning: The next is, when it will i 
| flecsupy but with eafie return ):; -The next, when it will flee upwards, | 
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