relaxed in its Parts, and so dilated; ’tis now increas’d in real quantity or number of parts, and so is truly nourish’d. And the _Cortical Body_ being saturate with so much of this Vital _Sap_ as serves it self; and the second Remainders discharged thence to the Skin; this also is nourish’d and augmented therewith. So that as in an _Animal Body_ there is no instauration or growth of Parts made by the Bloud only, but the _Nervous Liquor_ is also thereunto assistant; so is it here: the _Sap_ prepared in the _Cortical Body_, is as the Arterious; and that part thereof prepared by the _Lignous_, is as the _Nervous Liquor_; which partly becoming Nutriment to it self, and partly being discharged back into the _Cortical Body_, and diffusing its Tincture through the _Sap_ there, that to the said _Cortical Body_ and _Skin_, becomes also true Nutriment, and so they all now grow. In which growth, a proportion in length and breadth is requisite: which being rated by the benefit of the Plant, both for firm standing and sufficient Sap, must therefore principally be in length. And because it is thus requisite, therefore by the constitution of one of its Parts, _sc._ the _Lignous Body_, it is also made necessary. For the Pores hereof, in that they are all extended by its length, the _Sap_ also according to the frame and site of the said Pores will principally move; and that way as its _Sap_ moves, the same way will the generation of its Parts also proceed; _sc._ by its length. And the _Lignous Body_ first (that is, by a priority causal) moving in length it self; the _Cortical_ also moves therewith. For that which is nourish’d, is extended; but whatever is extended, is mov’d; that therefore which is nourish’d, is mov’d: The _Lignous Body_ then being first nourish’d, ’tis likewise first mov’d, and so becomes and carries in it the Principle of all Vegetative motion in the _Cortical_; and so they both move in length.