20 An Argument againft 
An Arcument againft the Doctrine of Materratsm,. 
addrefjed to ‘(Tuomas Cooper, Efg. — By Joun 
Ferriar, M.D. 
READ NOVEMBER 12, 1790, 
AN TOTI MORIMUR ? NULLAQUE PARS MANET 
Nosrri? 
Senec. Troad. Aé, 2. 
. 
HEN you were employed, fome time ago, 
my good friend, in fubjecting the Doctrines 
of the Immaterialifts to the terrible Ordeal of your 
Logic, you may remember, that in one of our 
converfations, I objected to the Material hypothefis 
thofe fads collected by Dr. Haller, which prove 
that great and extenfive injuries have been many 
times fuftained by the Brain, without detriment 
to the thinking faculty. You thought-the objec- 
tion inconclufive, and noticed it as fi * though 
not then aware of its full force, I was pleafed to 
fee it introduced by you; thofe important Cafes 
(noticed by Dr. Haller for other purpofes} being 
totally neglected, as far as I have obferved, by 
every Writer on this queftion, but yourfelf. 
It 
* Tra&ts, vol, 1, p. 181, Note, 
