k ? ii ae = 
\ Book II. of Roots. 67 
19. $. Oftentimes thefe Succiferous Ve/fels yield a Milk ty or White 
Sap 5 and fometimes Yellow,and of other colours as in Soxchus,and molt 
Cichoraceous Plants 5 in Angelica, and moft Umbelliferons 5 in Burdock, 
and divers Thifiles, to which that is “akin: in scorzonera, Common 
Bells, and many other Plants, not commonly taken notice of to be 
allg. The Milky Saps of all which, although they differ in Colour, 
Thickneß, and other Qualities; yet agree, in being more Oyly than 
any of the Lymphous saps. It being the mixture of the Oyly parts with 
fome other Limpid Liquor, but of a different Nature, which caufeth 
them to be ofa Milky, or other Opacons Colour, in the fame manner 
as common Oyl, and a {trong Liquamen of Tartar, fhaked in a Bottle 
together, prefently mix into a White Liquor. And although they 
will, for the greateft part, feparate again 3 yet fome of their patts, 
without any Boiling, or fo much as the leaft Digeftion with Heat, by 
Agitation only, or ftanding together for fome time, incorporate in the 
form of a Thin Mélky-Sope, which will alfo diffolve in Water. I fup- 
pole, therefore, That it isthe Volatile Salt, chiefly, of thefe Plants, 
which being mixed with their Oyl, renders this Liquor of a White or 
de are” other Opacous Colour. : E E - 
oe or 20. $. Sometimes the Oy! will feparate and difcover it felf: for if 
nthe you cut a Fenil-Root traverfe, ‚after it hath layn fome days out ofthe 
lied; Ground; the fame Veféls, which, in a freth Root, yields Milk 5 will 
of the now, yield Oyl: the watery parts of the Milk , which in the dry- 
bf ing of the Root are more evaporable, being fpent. 
ate 21. $. All Gums and Balfams are likewile to be reputed the proper 
wa Contents of thefe Vefels: for Thefe and Milks, are very near akin. 
from So the Milk of Fenil, upon ftanding, turns to a Clear Balfam 5 of 
ii, Scorzonera, Dandelion, and others, to a Gum. In the dryed Root 
as the Of Angelica, &c. being fplit, the Milk, according to the Continuati- 
on of thefe Vefels, appeareth, as Blood clodders in the Veins, con- 
denfed toan hardand fhining Rofin. And the Root of Helenium cut Tab. A 
tranfverfely, prefently yields a curious Balfame of a Citrine Colour, 
and fometimes of the Colour of Balfane of Sulphur. I callit a Bal- 
James becaufe it will not diffolve in Water, Yet not a Terebinth 
becaufe, nothing near fo vifcid or tenaceous as that is. But the Root 
of Common Wormwood, bleeds, from large Veffels, a true Terebinth, or a Tab. 10. E, 
Balfame with all the defining properties of a Terebinth5 although that 
word be commonly ufed only for the Liquors of fome Trees. 
22. $. There is yet another kind of Sap-Vefels, which may be cal- 
led Vaponr-Veffels; as in Docks, at leaft fome of them. For by the 
Sap-Veffels it is, that the Barques of Roots do Bleed. Of which, fome 
Bleed quick and plentifülly, asthe Umbeliferons and the Cichoraccows 
inds. Some, very flowly and ftarce vifibly, as all or molt Trefoyls, 
and of the Leguminous Kind. And fome feem not to Bleed, as the 
Dock, Yet that this Root, hath alfo Vefels diftin from thofe that 
carry Aer; doth partly appear; from the different Colour they pro- 
duce where they ftand; as will better be underftood anon, in fpeak- 
ing of the Caufes of the Colours of Roots.As alfo from the Toughneß 
of the Bargue, in ulling it by the length; neither the Paremchyasa, 
nor the Aer-Vejfels, being ofthemfelves Tongh. But becaufe the Succus 
Or Sap they carry, feems to be a kind of Dewy Vapour, therefore, they 
May not improperly be called Roriferous or Vapour-Veffeli. 
Pa 
da $ 
