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ig Natural. me 
ve es 
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22 Eliftory; 
Airin to} 
Water into Ice, is the work of afew hours ; and this of Airmay bet 
a monethsfpace, orthelike. «ions nn 
| hase <a LIAS a 
[Experiments | pNaduration or Lapidification of Subftances mote foft, is likewife another de- 
anes - gree of Condenfation, andisa great alterationin Nature. The effect- 
| rnduration of 
ing and accelerating thereof, is very worthy tobe enquired it is effected by} 
| Bodies % Sy ae | 
threemeans. ? ; | 
| The firftis by Cold, whofe property is to condenfe, and conftipate; as | 
| hath been faid: ) ‘hte Aer ae 
The fecondisby Heat, which is not proper but by confequence ; for | 
the heatdoth attenuate, and by attenuation doth fend forth the Spirit, and | 
moifter part of a Body ; and upon that, the more grofs of the caneiblepieecs ‘ 
do contra& and ferve themfelvestogether; both to avoid Vacuum yas they | 
all it) and alfo tomunite themfelves againft the force of the Fire; which | ~ 
they have fuffered. rY ! ee ph ASR ia 
And the third is by Affimilation, whenahard Body affimilateth afoft, | 
being contiguous to it. , ! is i} | eae 
Theexamples of Induration takingthem promifcuoufly, arcemany: As} 
the Generation of Stones within the Earth, which at the firft are but Rude 4 
| Earth or Clay ; and fo of (Minerals; which come (no doubt) at firft of |” 
Juyces Concrete, which afterward indurate : And fo of Porcellane, whichis | 
an Artificial Cement, buried inthe Earth a long time ; and fo the making A 
| of BrickandTile; alfothe making of Giaf, of a certain Sand and Brake-Roots, | 
| and fome other matters ; alfo the Exxudations of Rock Diamonds and Chryftal, | 
| which harden withtime ; alfo the Mdarationof Bead-Amber, which at firltis a | 
| foftfubftance, asappeareth by the Flies and Spiders, which are found in it, 
¥ 
| andmany more. But we will{peak of them diftin Aly. Pee ita 
a 
For Indurations by Cold, there be few Trialsof ir; for we have no itron xf 
g ; 
| 
$3. 
| orintenfe cold here on the furface of the Earth, fo near the Beams of the 
Sun and the Heavens, the likelieft tryal is by Snow and Ice; for as Snoy 
| and Ice, efpecially being holpen, and their cold aGivated by Nitre or} 
Sale, will tarn Water into Ice, andthat ina few hours: So it maybe it} 
willeurn Wood or ftiff Clay into Stone inlongertime. Put therefore into 
| a Confeiving Pit of Snew and Ice, (adding fome quantity of Sale ai 
Nitre) apiece of Wood, or apiece of toughClay, and let it licamione 
or more. is gt eG a alte eae 
Another tryal is by <#etalline /Vaters,, which have virtual Cold in them. | 
Puttherefore Wood or Clay into Smiths water; or other CVeralline water, and 
tery whether it will not harden in fome reafonable time. But I underfta 
lit of CAZzeralline waters, that come by wafhing or quenching, andnotof § 
Waters that come by diflolution ; for they are too Corrofive to 
lidati iio ices 4 ing age ll 
Ivisalready found, that there are fome Natutal Spring-waters that 
inlapidate Wood; fo as you fhall fee one piece of Wood; whereof the) 
above the Water fhalfcontinue Wood s and the part under the Water, 
beturned intoakinde of Gravelly Stone. It is likely thofe Waters ar 
fome Metalline Mixture ;_ but tliere would be more particular inqui 
| of them. Itiscertain, thatan Egg was found, having lain many yea 
t 
$4. 
85. 3 
