C'3'4'3'f] 
putrid flefli, and a very fmall quanj:[ty of bread : and 
added as much of the diluted fpirit of yitriol, as to 
make dt four, and effervefce definitely with the 
alcali. There was not any fign of inteftine motion 
till the 7th of Auguft, w'hen from time to time 
fome air bubbles, and alfo fome folid particles, rofe to 
the top ; and this continued till the 8th. Not per- 
ceiving any farther motion, I poured off' the clear 
liquor, which did not effervefce any more with the 
alcali. I mixed, the 9th, fix drams of the putrid 
liquamen, with about the double of this liquor, 
and put in befides four folid pieces of flefii, 
which had lain three days in the liquamen ; thele- 
pieces were of a prodigious flench, and fo rotten, 
that with the lead force they were torn to pieces.. 
There appeared no figns of intefiine motion : the- 
loth, the putrid fmell was very much abated: the 
iith, it was changed, and there remained only a 
fmell much like that of found flefii : the pieces were- 
without any fmell,. and had acquired again fome 
degree of firmnefs. In this condition they re- 
mained for a week, and I did not obferve them, 
any longer. 
I'his experiment proves, I believe, v that acids,, 
though changed in the alimentary canal fo far,,, as 
not to effervefce with alcalies, may notwithftanding, 
check putrefa^ffion ; and that, therefore, their ufe ia- 
of great confequence, and ought not to be omitted 
jn putrid difeafes. Though Dr, 'M'Bride believes 
that thcfc difeafes may be cured with fermentable 
lubflances only ; I muff own that Ido nc-t agree 
with him, and ana not quite convinced of his opi- 
VoL. LXL. X X 4, mon„ 
