Blood in Animals, forafmuch as it continually fapplies the want 
and cxpence of Sap in the exterior parts, from the ftock of the 
fap in the Trunk, root, and branches. He undcrftands it thus 5 
That} the Sap,neceffary to the growth of the leaves, fruit, and 
upper branches, being difpenfed an i converted into the form 
neceffary for thofe purpofes, when the Tree isfulleft of Sap, in 
fuch manner that the S ;p in the innermoft Coats feeds the inner- 
moft, and the fap of the outward coats the outward parts , of 
Fruits, &c. that which remains in the Body betwixt the feveral 
coats, and betwixt the Bark and Body, begnstocondenfe there 
alfo, firft intoa Geliy, and after into Wood, 3 irk, Roots, &c % 
according to the feveral places to w! ich it hath fubfided. And 
beauie it condtnfeth fafter in fome parts than in ethers, accord- 
ing as they be higher or lower, (whether it be by heat or cold, or 
exhalation of thinner parts) the fap condenfed above or below, 
filling lefsroom, muft needs a;u r e the fap, which is not yet con- 
denfed, in appearance to defcend or fubfide, and to fink as it 
were lower and lower in the pores of the Timber and b irk, i,e. 
to be lefs high, not defcend from any place, to which it was 
formerly rifen, unlefs (as in Blood-letting) when fome lower pare 
is open'd, all the fap above continually flowes thither, till the 
Tree be emptied, or the continual flux of the Sap (the natural 
jSalfome of the Tree) heal the wounds,as that of the j?lood does 
thofe of the Body • and fo much quicker and eafier, by how 
much the Air is more favorable, or is better kept out % which he 
obfervesfor their direction, who are curious in Inoculation,** the 
ground of their fucceffes or mifcarriages. 
The Trees obferv'd by the fame Dr.T'. to run, are tktVine ; 
the Birch plentifully^ atrbody, branches, and roots 5 the Wal- 
vxt-tree, at the roc ts and prun'd branches; fome Willows and 
Sally es, and fome forts of Mafic 5 the Sycamore, which is the 
greater Mafic (fome call it the Plane) at a gafh made on the bark 
of his body, and at the root and branches ; the Poflar and Jsp : 
The Elmemd Oake are referred to tryal 5 concerning which laft 
fome Wood-men affirm, that in fuch of them as are Wind- 
flnken, that have large hollowneffes in their Armes and todies, 
they have found great quantity of fap in the cutting of them, 
whereof having drunk, they quenched their thirft without any 
prejudice 
