( 495 ) 
Haw to anfwer to all this in order, I fay in the £rft place- 
that fuch a great intemperafure, from whence 'tis (aid the 
blood can never recover, is either rare or very common. If 
very rare, it requires not much confideration, and if the mix- 
ture of laudable blood ft dice not to reftore it to its due tern' 
perament, I would gladly learn other meane.s to do it. But 
if fuch intemperature be ordinary in all difeafes and in all de- 
clining old Ages, I demand to what end ferve the aliments 
which Pbvfic ^ allows , or the Medicaments it prefcribes in 
thefe occafions ? Can thefe things enter into the body with- 
out mingling with the blood within an houref And if by fo 
mingling they contract the ill temperament of the blood, and 
impart not to the fame any of their good qualities, is it not 
Ioffe of time to ftudy Phyfick , and to reduce into practice 
what we are taught touching the choice of all thofe things f 
For my part, I am fo far from having fuch a thought, that I 
doubt not but the ftrcngth & goodnefs of the meats & drinks 
we take, is able to correct the ill temperament of the blood 
and render it better; If there beany impediment of this ef- 
fect, I (hould not fo much look for it in the blood it felf, or in 
the parts which elaborate the fame, as inthofe through which 
the aliments paffe before they arrive at the heart. For 'tis 
fufficiently manifeft that if there be any irregularity in the fto- 
mack, if thedigeftion be not well made, if thejuyces of the 
Gall and Pancreas (which ferve for DifTolvents in the Inte- 
ftines) be not well temper’d, if there be any Obftrudtion of 
Abfceffe in the Glandules of the Mefentery which drain the 
purer portion of the Chyle ; the bed and mod excellent 
things become io transform'd before their mixture with the 
blood, that no good nourifhment or refrefliment to the lick 
can with reafon be expedited from them; 
How in this way of Trmsfufion all thofe inconveniences are 
avoided# the blood communicated is not made to paffe 
through thofe many turnings and windings, where the lead 
corruption of a part dedroys in an indant whatever good the 
foundne/s of the reft can produce,- The good blood enters, 
im- 
