( 99 ) 
markable on the Infide of the Stomach and InteJHnes , 
becaufe of the immediate Contact it has with thofe 
Parts, 
All other Poifons which occafion Inflammations in 
the Stomach and Guts, do firft operate upon the Blood- 
VefTels, and corrode the Parts inflamed. They occafion 
Vomitings and Fluxes of Blood, which at length ter- 
minate in Convulfions. 
One may very eafily be deceived upon opening the 
Stomach of a Dog, and may miftake the Rednefs of 
the tunica Fillofa for an Inflammation. 
The inner Coat of a Dog’s Stomach is naturally of 
a ruddy Flefh-colour, and therefore of all domeftick 
Animals a Dog has the quickefl and ftrongeft Digefti- 
on. Accordingly we fee, that they fwallow Bones, 
and digeft them perfectly well ; and although they are 
but half chewed when taken into the Stomach, yet 
they are at lafl reduced to as foft a Confidence as any 
other Part of their Aliment. It is for this Reafon 
therefore, that the Stomachs of Dogs are more plenti- 
fully fupplied with Blood than thofe of other Animals ; 
by which Means not only the mufcular Force of the 
Stomach, but its Warmth alfo, which is the principal 
Inftrument of Digeftion, is very much increafed. 
N.B. The ryth and 16th Experiments were com- 
municated to me by Dr. Stephens , a Fellow of 
„ our College of Phyficians. 1 am, 
SIR, 
Dublin, April 7 7 , 
*9. *731. Tour mojt Humble Servant , 
T. Madden, 
