(490 
immediately into the Veins of the receiving Animal, and there 
mixing and circulating with the reft, carries good nourifh- 
ment to the principal parts , which are not ordinarily indifpo- 
fed in ficknefs and old age, but by the vitioftty and faultinefs 
of the blood which hume&eth them. 
This is an Opinion which I fee many Phyfitians embrace, 
and were any thing capable to make me renounce it, the Bar- 
rel oi Vinegar, above mention’d muft not be it. For if forver- 
mfs be the Iaft quality which Wine affumes, and (as I may fay) 
its Death, fince it is never recoverable from the fame 5 Ido 
not believe that a like quality is to be found in the blood; that 
is to fay, which corrupts the blood in fuch manner that it can 
never be putifi’d , unleflc perhaps in fome Difeafes accounted 
incurable, which are not pertinent to the Queftion. But if 
comparifons be currant , let us rather confider Wine with all 
iorts of other qualities but fowernefs , and then our compa- 
rifons will in my opinion, fall more juft. For as the rougheft 
Wine may be fweetned, the fowleft clarified, the weakeft be- 
come ftronger,the Oylie rid it felf of its fatnefsjin a word, that 
which is decay’d may be amended by mixture of certain li- 
quors, known to thofe that have the fecrets of them, and 
praftife the fame every day : In like manner, ’tis reafonable 
to conceive that blood too thick may be refined andfubtili- 
fed, that too fubtle be fixed and incraffated, that too hot be 
temper'd, that too cold be heated; and all this by the mixture 
of other forts of blood , the particular qualities whereof are 
known to the Phyfitian whoprefcribestheTrflWjr/^/ow. 
As for the Experiment of the Dog , which is faid to have re- 
ceived the corrupted blood of another Mangie one without 
contrafting his difeafe $ many things of fufficient importance 
may be faid to it. 1, Is there any aflurance that the blood of 
the Mangie Dog was putrefied, and corrupted in his Veins! 3 
On the contrary might it not have been purified before, by 
difcharging its imparities through the pores of the fiefh, 
where the fame was converted into Mange upon the Skin* 
That which confirms me the more in this particular, is, that 
very^ 
