Qenturj . JlX. 
A LL Solid Bodies confiftof Parts 6^ two fcucrall Natures-, Pneuma¬ 
tic ad, and Tangible \ Audit is well to be noted, that the Pneumati- 
ciUsubjlancc is in fome Bodies, the Nattue Spirit of the Body - And in fome 
| other, plaine Aire that is gotten in- As in Bodies Dcficcate , by Heat, or 
? Age: For in them, when the Natme Spirit goeth forth., and the Motflure 
| With it, the Atre with time getteth into the Pores. And thole Bodies arc 
I euer the more f ragile j Forthe Name spirit is more Tedding md Extern 
| fine, (elpecialty to follow the Parts,) than Aire. The Nattue Spirits alio 
admit great Diueriity -, As Hot,Cold, ABiue i Dull,$tc. Whence proceed 
moll of the Vertues, and Qualities (as wee call them) of Bodies: But the 
Atre Jntermxt , is without Verities, and maketh Things Infipide, and 
without any Extimulation. 
r He Corcretion of Bodies is (commonly) foluedby the Contrary ± As 
Icc % wb ich is congealed by Cold,i s diflblued by Heat- sa '/, and Sugar, j 
which are Excoded by Heat , are Dilfolued by Cold , and eMoiflure. The 
Cau/e is, for that thefe Operations , are rather Returnes to their former 
Nature, than Alterations: So that the Contrary cureth. As for Oyle, it 
doth neither ealily congeale with Cold , nor thicken with Heat. The 
Canfe of both Effects, though they be produced by Contrary Efficients, 
icemeth to be the Same j And that is, becaufe the Spirit of the Oyle, by 
either Meanes, exhaleth little • For the Cold kcepeth it in j and the Heat, 
(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 Congeale them: As when Ice is congealed in a Cup, 
the Ice will Swell in dead of Contra&ing 5 And fometimes Rift. 
' 215 j. 
Experiment ! 
Solitary tou_ j 
chmg che Tpjj 1 
Kjn'ds of Pneiir- ! 
mat kali in Bo- i 
dies. . 
842 
Experiment 
Solitaiy tou¬ 
ching Concreti¬ 
on, and Dijfola- 
ttott of Bodies. 
Hz 
O F Bodies , fome (we fee) are Hard, and fome Soft: The HardneJJe is 
cauled (chiefly) by the lemnenejje of the Spirits • And their Imparity 
with the Tangible Parts: Both which, if they be in a greater degree, ma¬ 
keth them not only Hard, but Fragile , and lefle Enduring of Prejfure j 
As Steele, Stone, GlaJJe, Dry Wood, &c. Sfiftnejfe commeth (contrari - 
wife) by the Greater of Spirits . (which euerhelpethto Induce 
Tedding and Cefiion ) And bv the more Equail Spreading of the Tangible 
Parts , which thereby are more Sliding, and Following- As in Gold, Lead, 
wax, &c. But note that Soft Bodies, (as wee vfethe word,) are of two 
Kinds • The one, that ealily giueth place to another Body, bur alcereth 
not Bulke, by Riling in orher places ; And therefore we fee tha \tvax, if 
you put any Thing into it, doth not rife in Bulke, but, only giueth Place: 
For you may not thinke, that in Printing of wax , the wax rifeth vp at 
all ; But only the deurefjed Part giueth place, and the other remaincth as 
it was. The other, that altereth Bulke in the Cefiion • As water, or other 
Liqueurs j if you put a Stone, or any Thing into them, they giue place 
(indeed) ealily ^ but then they rife all ouer: Which is a Falfe Cefiton 5 For 
it is in Placeand not in Body. 
Experiment 
Solitary tou¬ 
ching Hard 
arid Soft Bodies. 
844 
1. 
