t 14 ) 
Fetter the Spirits already produced j and no crude 
Chyle admitted to anfwer that End ; in fuch a Cafe 
Opiats can have no EffeQ:, the Spirits cannot be 
abforb’d, fetter’d or reftrained, where the Qualities 
of theMafsof Blood do not concur to tlratEffed. 
Another concurring Caufe of the Inefficacy of 
Opiats in the Cafe of Failing, is, that all the natu- 
ral Parts, thofe, to wit, of the Primes Via', which 
ferve for Digeftion, are at Reft, for want of the 
Weight and Stimulus of Food, and alfo of the Gall 
in the Cafe referred to, to keep up their periftaltic 
Motion ^ therefore few or none of the Spirits being 
fpent on thofe Parts, there is a greater Supply fent 
to the animal Organs of Senfation and voluntary 
Motion ; and indeed in fuch a Cafe even the vital Parts 
for Refpiration and Circulation do afl but very flug- 
gilhly for want of a Recruit of Blood and Fluids pro. 
per to excite their F unftions : Hence alfo the Supply 
of Spirits to the Organs of Senfation and voluntary 
Motion, is by fo much the greater ; and the Polli- 
bility of reftraining their Secretion, for the Reafons 
above affigned, impracticable by any Power of Opi- 
um . , without theAcceffion of a frelh Recruit of Chyle. 
Hence alfo thofe who have any confiderable Defed 
in the natural and vital Functions, or in either of 
them, by Obftruftions of the Fife era, are generally 
T>ad Sleepers, or Watchful j and in fuch Opiats have 
but little Effed to procure Reft j with this great Dif- 
advantage, that by impeding the Secretions, they in. 
creafe the Obftrudions j though in many Cafes, where 
the Vifcera are found, they muft be acknowledged to 
be excellent Medicines, 
What 
it. . _ 
