Century IX. 



18 1 



fid, 

 ancc 



Contrariwife , Tough Bodies have more Spirits, and fewer Peres, and Moifler 

 Tangible Parts .-Therefore we fee that Parchment, or Leather will ftietch, 

 p^tr will notj Jfo^ C/o^; will tenter, Linnen (carcely. 



/V L L Solid Bodies confift of of two feveral Natures ^ Pneumati 

 -"■and tangible ; And it is well to be noted , that the Pneumaiical Subfta 

 is in fome Bodies , the Native Spirit of the Body ; And in fome other , plain 

 Air that is gotten in , As in Bodies desiccate, by Heat, or For in them- 

 when the Native Spirit goeth forth , and the Mcifure with it,the Air with 

 time getteth into the Pores. And thofe Bodies are ever the more Fragile^ For 

 the Native Spirit is more Tedding, and Extenfive, (efpecially to follow the 

 Parts,)than yfrV.The 2\fa&V ty/Wtt alfo admit great Diversity; As Hot, Cold, 

 Atlive, Bull, &c. Whence proceed mod of the Venues^ and Qualities (as we 

 call them) of Bodies : But the Air Intermixt, is without Vertues, aud makcth 

 Things Infipide, and without any Extimulation. 



'jTJe Concretion of Bodies is (commonly) folved by the Contrary , As Ice, 

 which is congealed by is diftolved by Heat ; Salt and Sagdyj which 

 are Exco&ed by Heat, are Diffolved by Cold, and Moiflure.The Caufe is, for 

 that thefe Operations are rather Retmns to their former Nature^ than Altera- 

 tions ;So that the Contrary cureth. AsforO/^j it doth neither eafily con- 

 geal with CcW, nor thicken with JSfaif. The Ctf«/V of both Ejfefts, though 

 they be produced by Contrary Efficients,fecmeth to be the Same; And that 

 is, becaufe the Spirit of the Oile, by either Means , exhaleth little-, For the 

 Co/^keepethitinjandthe/foi/:, (except it be Vehement) doth not call 

 it forth. As for Cold, though it take hold of the Tangible Parts, yet as to the 

 Spirits, it doth rather make them Swell,than Congeal them : As when Ice 

 is congealed in a C«/>,the Ice will S well in ftead of Contracting; And fome- 

 times Rift. 



r\V Bodies, fome (we fee) are Hard, and fome Soft : The HardneJ? is cau- 

 fed (chiefly )by the Jejune/ief? of the Spirits-, And their Imparity with the 

 Tangible Parts: Both which if they be in a greater degree, makeththem 

 notonely H^,but Fragile, and leflTe Enduring of PreJJure-, As Steel, Stone, 

 Glafl, Dry mod, &c. Softnef commeth ( contrariwife ) by the Greater 

 Quantity 'of Spirits; (which ever helpeth to Induce Yielding and Cefiion;) 

 And by the more Eqital Spreading of the Tangible Parts, which thereby are 

 more Sliding, and Following ; As in Gold, Lead, Wax, &c. But note, that Soft 

 Bodies (as we ufe the word,) are of two Kinds ; The one, that eafily giveth 

 place to another Body,but altcreth not Bulke,by Riling in other Places t And 

 therefore we fee that Wax, if you put any Thing into it , doth not rife in 

 Bulk, but only giveth Place: For you may not think, that in Printing of 

 Wax, the Wax rifeth up at all;But only the depreffed Part giveth place, and 

 the other remaineth as it was. The other that altereth Bulk in the Ceflion, 

 as Water, or other Liquours, if you put a Stone or any Thing into them , they 

 give place (indeed) eafily , but then they rife all over : Which is a Falfe 

 Ce/ion 5 For it is in Place, and not in Body. 



/^LL Bodies DuFt/le, and Teh file , (as Metals) that willbedrawne into 

 Wires ; Wool! and Towe that will be drawn into Tarn , or Thred 5 have in 

 them the Appetite of Not V if continuing , Strong ^ Which maketh them 

 follow the Force, that pulleth them out; And yet fo , as not Difcontinue or 



R for^ 



Experiment 

 Solitary tou- 

 ching the 

 Trvo fonds of 

 Tneumatic.ils 

 in Bodies. 

 84 s 



Experiment 

 Solitray tor- 

 ching C° } isre- 

 tien s and Dif- 

 folution of 

 Bodies. 

 843 



Experiment 

 Solitary 3 tou- 

 ching Hard 

 ani seftj 

 Bodies. 

 844 



nxpenmenr 

 Solitary tou- 

 ching Bodies 

 DuclUc, and 

 Ten file. 



845 



