140 
The Vegetation y Book ig 
fine a Staple, as Flax (for all our fine Hollands are made of Flax ) yee 
Flax, which is but of the fame fineneß as Hemp, will never, by ail the 
Art yet known, be made fo white as Hemp is made. The Qualities 
therefore of the belt Tow, that can be in Nature, are that the Staple 
be long, forall, tough, and white. So that if in the Barque of any 
Plant, we can find thefe Qualities, or any of them, to excell 3 wemay 
be fare, it will be of better ufe, in fome refpe&ts, for the making of 
Cloath, or other purpofe, than Flax it flf. 
14. $. I WILL conclude with one Inétance more, and that is 
as to Grafting. The good and happy fücceß whereof, doch certainly 
depend upon the füitableneß or refpondence betwixt the feveral París 
of the Stock and (yon; asthe Barque, Wood, and Pith; and that both 
as to the Number, Size, and Pofition of the {aid Parts,and of their feve- 
ral Pores or Veffels : according to the degrees whereof, the Conjunifi- 
on ( ceteris paribus) will be more or lefs profperous. So that of all 
fuch Conjunitions as are found to be apt and taking, and which fome 
have learned not without long Practice and Experience ; another, on- 
ly by comparing the Branches of Trees together, may with little trou- 
ble, and in much leístime, inform himfelf By the fame means, fome 
Conjundions which fecm to be ftrange, as Quince and Pear, White Thorn 
and Medlar, &c. do yet, by the refpondence of their Parts, as well as 
by Experience, appear to be good. And there is no doubt, but that 
many Conjundions not yet tryed, or not known to have been fo, may 
upon the fame ground, be tryed with good fuccefs, 
15. $. The chief Ufe of Grafting and Inoculation, is, That they 
Accelerate the growth of Good Fruit. The Caufe whereof, isthe Knot, 
which is always made in the ConjunGion. By means of which, all the 
Sap is trained, and fo afcendeth up into the Graff or Bud, both Purer 
and in lef Quantity; and is therefore better and fooner concotted, 
Hence, the finaller the Fruit of any Tree, though it be not the beft, yet 
the Sap being there, in le/s Qantity, is the fooner ripe. On the con- 
trary, where the Sup afcendeth too freely, it doth not only retard the 
growth ofthe Fruit, but produceth Barrenmeft; as is feen in thofe 
luxuriant Branches, where it runs all up to Leaves. Hence alfo Vines, 
by Bleeding, become more Fruitful: that is, by the Effufion of Part 
of the Sap, there is a more eafier melioration of that which remains, 
Even as Phlebotomy doth oftentimes produce a more healthful and bet- 
ter Habit of our own Bodies. To conclude, the leffening-the Quan- 
tity, and thereby the ~elioriation of the aftending Sap, by Knots, is 
Natures own contrivance; as is feen in Sugar-Came, Corn, and other 
Plants. 
