( ) 
from thence at !aft the flioot (as the Artery into 
the Colli quamenturrc) through the Seeondine into the aforefaid 
liquor, depofited therein. Into whi ch liquor being now 
fliot, and its own proper Sap or tindtures mixc there with, it 
ftrikes it thus into a Coagulum^ or into a Body confiftent and 
truly par enchymoiis. And in the interim of the Coagulation^ a 
gentle fermentation being alfo made, the faid Parenchyma or 
Coagulumbtcom^fnch^ uotof any Conftitution indifferently^ 
but n raifed (as we fee Bread in baking) into a Congeries of 
^xed Bubks 5 the parenchyma of the whole Seed being 
fuch. 
The whole is illuftrated by feveral Figures, and thefe expli- 
cated with great care. 
n. Difemtions fur la Nature du FBJ)JD & du CBAVD-^ 
par le Sieur Petit, Conjeiller duRoy, Intendant des Fortificatis 
ons^ Ave$ un Difcours fur la ConftruUion & tVfage dun 
GylindreArithmetiquej inventi par le mefme Authem, 
Paris, 1671« 
THe famous Author of thefe two Trafts^ exarnins in the 
former 3 Hr/?, the Nature, Subject, Caufe, and Ef* 
fe(9:s of €old. As to its Nature^ he efteems it to be a Fo/is 
tive things and not a meer Privation, the EfFedts of it being 
as fcnlible to us, as thole of Heat. For the SubjeS of ir, he 
placeth the Supreme Cold in the Pure Air^ and maketh the 
Heatj that is fometimes in the Air, meerly adventitious, 
produced in it by the Sun , but the Cold natural to the 
fame. Concerning the Cau/e of this Cold in the Air, he will 
not acknowledge it to be Nitre^ (all forts of Salt being by 
him efteem*d hot) much lefs an Univerlal Spirit, or any 
Stars i but efteems ^ that the Air is the Primum Frigidum by 
nature 5 the fame Caufe^ that hath made it Air, having made 
it Cold. The EffeSs of Cold being too obvious to dilcourfe 
of them in print, he enlarges upon the Manner of its opera* 
tion^ performed by the infinuation of the Air into the pores 
Cccc of 
