11 



Experiments 

 in Confort 

 touching In- 

 duration of 

 Bodies. 



83 



Water into Ice, will likewife turn Air fome Degree nearer unto Water. 

 Therefore trie the Experiment of the Artificiall T urning Water tnto Ice 

 (whereof we lhall fpeak in another place) with Air in place of Water ; and 

 the Ic e about it. And although it be a greater Alteration to turn Air into 

 Water, thm Water into Ice : Yet there is this Hope, that by Continuing the 

 Air longer time, the effed: will follow For that Artificiall Conversion of 

 Water into Ice, is the work of a few Homes - 7 And this of Air may be tried 

 by a Months fpace, or the like. 



INduration, ozLapidification, of Subftances morefoft, is like- 

 wife another degree of Condenfation $ And is a great Alteration 

 in Nature. The EfTc&ing and Accelerating thereof is very 

 worthy to be enquired J t is effected by three Meanes. The firft 

 is by Co/flf . whofe Property is to Condcn/e, and con{tipate,as hath 

 beenfaid. The Second is by Heat • which is not proper butby 

 confequence For the Beat doth attenuate j /^nd by Attenuation 

 doth fend forth the Spirit and moifter l J artofa Body. And 

 upon that, the more grofs of the Tangible Parts do contract 

 and fervethemfelves together -, Both to avoid Vacuum ( as they 

 call it J And alfo to Munite themfelves againft the Force of 

 the Fire, which they have fufTered. And the Third is bv jiffimi- 

 iatfcn, when a Hard Body £flimilateth a Soft, being contigu- 

 ous to it. 



The Examples of Induration* taking them promifcuoufly, are 

 many : As the Generation of Stones wi t hin the Earth, which 

 atthefirft are but Rude Earth, or Clay.- And fo of Minerals, 

 whichcoroe (nodoubt) atfirft, ofjuy^es Concrete, which af- 

 terward indurate : And fo of Porcellane, which is an Artificiall 

 Cement 5 buried in the Earth a long time • A nd fo the Making of 

 hrick, and Tile-. Alfo the Mating of Glafi, of a certain Sand, 

 and Brake- Roots, and fome other Matters: Alfo the Exudati- 

 ons of Rock- Diamonds* and CbryffaH, which harden with time- 

 ASfothe Induration of Bead- Amber, which at firft is a fofr Sub- 

 ftances Asappearethbythei*7#j 3 and Spiders, which are found 

 in ir, And many more But we will fpeak of them diftin&ly. 



For Indurations by Cold, there be few Trials of it • For we have no ftrong 

 or intenfe Cohere on the Surface of the Earth, fo near the Beames of the 

 Sun^and the Heavens. The likelieft Triall is by Snorv^nd Ice ^For as Snow 

 and efpecially being holpen, and their Cold activated by Nitre, ox Salt, 

 will turn Water into Ice, and that in a few houres 3 So it may be,it will turn 

 Wood, or stiff Clay, into Stone, in longer time. Put therefore, into a Con* 

 ferving pit oi 'Snow -and Ice, (adding fome quantity of Salt, and Nitre) a 

 Piece of Wood,or a Piece of Tough Clay, and let it lie a month, 'or more. 



Another Triail is by Metalline Waters, which have virtuall cWinthem. 

 , Putj 



