(SI35) 
magpitade, order^ diftributions, &e.' Aod yet neither 
of thefe helps in our hands has fatisfad:only difcovered to 
us other particulars beloDgiog to thefe veflek^ as external 
Figure, Goats, Gavitie, &c. 
The fubftance of thefe veins feems to be as truly 
branomy as the Veins of Animals: A Leaf will not give way 
and be extended ^ but the Veins in aleafgif freed of all the 
woody Fibres, will be ftretched out to one third part at 
leaft, and vigoroufly reftore themfelves again, juft like a 
V^in, Gut, or any other membranous du^tfd^ of an Animal. 
Again thefe membranous Pipes are exceeding thin and 
traufparent, becaufethey fuddainly difappearand fubfide 
♦after their being exhaufted of their Juice ; aad particular* 
ly in that we fee the liquor, they hold^quice through them^ 
no othcrwife than the blood through our Veins, or (in Che- 
Udmium majus^ for example ) a tindure of Saffron in Cry* 
flalline Pipes. 
Concerning the External Figure of thefe Veins and Ca- 
vitie, as well as other Accidents, we thought, they would 
have been made more apparent to us, if it were poffible to 
coagulate the Juice they hold without much (hrioking the 
plant. W« were in great hopes. Freezing would have eft 
feAedthis ^ which though it did not fucceed as we promi- 
fedour felves, in rcfpcd: of themaoifeftation of thefe Ac«. 
cidents^ yet it gave us fome further light into the nature 
of the Jaice of thefe veins* In the keeneft froft, which 
bapned the other winter, we difleiJled the frozen leaves of 
the Garden Spurge^ Here we obferved^ that all the Juice 
("bcfides that which thefe veins hold) was, indeed^ frozen 
into perfedl hard Ice^ and to be expreiied out in the figure 
of the containing pores^ but the Milkie-Jtiice was as liquid - 
as ever, but not fo brisk as in open weather. 
This Experiment we take to be good proof of the per^ 
fe(ftion of this Milkie Juice, and that it hath within it felf 
fo great a degree of fermentation, that it preferves it felf 
and confequectly the whole plant from the injuries of the 
weather 5 that is, the plant owes its life to it. Thus we.bave 
