So that Cork seems to suck its nourishment from the subjacent bark of the
Tree immediately, and to be a kind of excrescence, or a substance distinct
from the substances of the entire Tree, something _analogus_ to the
Mushrome, or Moss on other Trees, or to the hairs on Animals. And having
enquir'd into the History of Cork, I find it reckoned as an excrescency of
the bark of a certain Tree, which is distinct from the two barks that lie
within it, which are common also to other trees; That 'tis some time before
the Cork that covers the young and tender sprouts comes to be discernable;
That it cracks, flaws, and cleaves into many great chaps, the bark
underneath remaining entire; That it may be separated and remov'd from the
Tree, and yet the two under-barks (such as are also common to that with
other Trees) not at all injur'd, but rather helped and freed from an
external injury. Thus _Jonstonus_ in _Dendrologia_, speaking _de Subere_,
says, _Arbor est procera, Lignum est robustum, dempto cortice in aquis non
fluitat, Cortice in orbem detracto juvatur, crascescens enim praestringit &
strangulat, intra triennium iterum repletur: Caudex ubi adolescit crassus,
cortex superior densus carnosus, duos digitos crassus, scaber, rimosus, &
qui nisi detrahatur dehiscit, alioque subnascente expellitur, interior qui
subest novellus ita rubet ut arbor minio picta videatur_.
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