192 NOVUM ORCrANUM. 



manifesto intumescit, insurgit, et emittit bulks, tit- 

 que urget processum expandendi se, donee vertatur 

 in corpus longe magis extensuin et dilatatum, qiiain 

 sit ipse liquor: vix. in vaporcni, aut fuinuni, aut 

 aerem. 



Ostenditur etiain in onini ligno et combustibili ; 

 ubi tit aliquando exsudatio, at semper evaporatio. 



Ostenditur etiain in colliquatione metallorum ; 

 qua&amp;gt; (cum sint corj&amp;gt;oris compactissimi) non facile 

 intumescunt et se dilatant : sed tamen spiritus eo- 

 ruiu, postqnam fuerit in se dilatatus, et majorem 

 adeo dilatatioiieiu concupierit, trudit plane et agit 

 partes crassiores in liquidum. Quod si etiain calor 

 fortius intendatur, sulvit et vertit inultuni ex iis in 

 volatile. 



Ostenditur etiam in ferro aut lapidibus : qua* licet 

 non liquefiant aut t liudautur, tamen emolliuntur 31 . 



Quod etiam fit in baculis ligni, (pue caletacta pauln- 



luin in cineribus calidis liuut llexibilia. 



Oj)time autem cernitur iste inotus in aere, qui per 



exiguum calorem se dilatat continuo et manifesto, 



lit per Jn*tant. 38. Tuft. . 3. 



Ostenditur etiam in natura coutraria frigidi :i2 . 



Frigus enim omne corjius contraliit et cogit in an- 



o-iistius; adeo ut ]&amp;gt;er intensa frigora clavi excidant 



ex parietibus, a i ra dissiliant, vitrum etiam calefactum 



;&amp;lt;i Hacon here seems to conU-m- not actually true that &quot; fri^us omne 



plate the jiossihility of Iron, and corpus contrahit.&quot; The contrary 



some kinds of Stone, not nifUin&amp;lt;r. is the case with Ice. The French 



&amp;lt;l There is no solid suhstance known, popular way of speaking of &quot; de- 



which, hy a sufficiently intense grecs of Cold,&quot; (arising from their 



Heat, may not he melted, and final- use of Reaumur s Thermometer, to 



ly dissipated in vapour.&quot; Herschel s graduated that the freezing point is 



Discourse, .357. zero,) tends to keep up this false 



2 Cold is here regarded as a se- notion of absolute Cold, 

 parate and distinct Nature. It is 



