C 5157 ) 
as welt as the motion of their juice , fully clear'd. 
There feeoi to be in Plants manifeft Ads of Senfe^^ We 
inftance in the kddain flirinking of iomt Plants 5 the fre- 
quent clofing and opening of flowers 5 the critical erefting 
of the heads of Poppies from a pendulous poflure , and 
particularly the motion of the veins when expo* 
fed to the air* Agaio^ the yeiosdf Plants may indeed be 
dtfferentj, though at prefeot we caonoi tell wherein they 
arefo* The Arteries within our heads are hardly, to b^ 
known by the eye from the Veins. Further there^ are na- 
loral and fpontaueous excretions or venting of fuperfiiions 
moifliure ip plants, vifible and conftant, in the Crown Im- 
perial^ l{orellay Pingmcula^dic, As to the Ligature^as it hath 
been hitherto applied by us, it is not to be reiyed 00 for 
the difcovery of this motion 5 the Veins only of plants be«^ 
ii g the parts probably diftendable. 
Laftly we fcail not omit to tell yon, that either we muft 
take that away from the other reafons given of the nec efTi- 
ty of the Circulation of the blood in Animals, vt^ the hiii^ 
dring of its breaking and clodding 5 or we rauft grant the 
fame motion to the Fefialjuicc in Plants : we havio^ unde^ 
niable Experiments to fliewj that the Vena! juice of Plants 
and the Bloed of Animals agree in this, that they both^wheo 
they are once drawn from their rcfpeAive veins, do forrh^ 
with break and coagulate^ and that the ferum in the one as 
well as in the other becomes a ftifF gelly by a little ftaoding. 
j . Bwtof thedifRrenc natures of the juices of thcfe yeios io 
divers Plants and their motion we will remain yourdebtor^ 
and acquit our felves when we (hall find it conveoieou at 
prefeat otiJy acquainting you^what variety of Experiments 
I hath taught us, that probably more ufeful preparations 
and certainly a truer Analyfis and feparation of the parts ©f 
vegetable Drugs rosy be effeded^whilft they are in bleeds 
ing andliquid, than after they as eo ice become concrete 
and have loft their natural Fermentadon^ 
■I am, 5cc, 
The 
