final ler than thofe. Having pulled the Stalk from the Leave , and 
tranfverfly cut it thorough , I difcovered in the pares of this 
Stalk (which I fliall cairi^f?w) very thin Figures,which ac length 
appeared CO me in my Microfcope, of the thicknefs of a great 
Bread-knives back, aqd its thicknefs of that of a Spiders web, 
w^hen feen by the naked Eye. Thefe fine Figures lay in the faid 
Pores in a beapi in fome, ten or fifceen of them together. Having 
Guc fome of the Leaves of this Herb in pieceSjUpon a clean Pewter- 
plate, and fqueez'd the Juyce out of it , I found it fo rhick of i;s 
finalleft parts, that it oufed but very flowly through blew Paper ; 
and looking upon this drained Juyce, . I found it alfo fo thick, and 
fo (ticking, that I could obferve nothing thereiobuc partly ^ibun- 
danceof fmall particles, which by reafon of their finallnefs ap- 
peared not figured, partly fome bigger parrs, which likewife, by 
reafon of their fticking matter, yielded no Figure to my Eye. But ^- 
then viewing the thicker pare of this Juyce, which remained be- 
hind in the Blew-paper, I faw, that that conPifted almofi: all , ex« 
ceptingaJittleSap, of the fald very fmali particles, of which 
morethan a thoufand make one globul, and of which the Leaf 
was made up. And I imagined, that I favv, between the very 
fmall particles, fome little Figures or Pipes, as I faid I had feen 
in the pores of the ftalk of the Leaf, But this I coulJ not 
perfeftly difcern, by reafon of the various parts that were in the- 
Sap, how thin foever I fpread it, and reprefentcd ic (o mc. 
Holding fome of the faid thick Sap to a little fire, by which the 
faid particles of the Leaf did in part burn away , I then noted ^ 
very many of the faid thin fmall figures or p'pes , which ! had 
feen in the Stalk of the Leaf. - Thefe little pipes were of a much ' 
fiftner matter, than the particles which the Leaf was made up of ^ 
for, though I fuffered mod of the little particles of the Leaf to 
burn away in fome places, yet the faid fmail Pipes remained ahnofl: 
entire, without any vifible derrimcnc to them. And \ afrer^varr's 
faw in the exprciTed Sipof /^r/^^, without holding it to the fire,the 
fame little Pipes moving very p'ainly. And when after this, upon 
the fading of the Leaf, the feed upon the Sralk being vet green , f 
cxpreflTed the fap ouc of the Stalk, 1 perceived alfo the little 
pipes in this exprelTed Sap» 
Now 'tis likely, that thefe Pipes in thisHerb are fhe caufe of 
the fmart thai is felt in chawing the ^r/^/^.? 5 by the motion of the 
maift. 
