C 44 ) 
Tryals of Styptkks on the B>dies of QuaJrupeJes 
have been commonly praftifed D recommend Them to 
the Publick ; but it is not withoit caufe that Pretenders 
to fuch Remedies have made choi<e of younger Animals, 
as Dogs and Calves, ^c, for that purpofe. But fincc 
the only Standard of their ufe i their Succefs on the 
Humane Body, we ought to mace our Experiments on 
thofe Animals whofe Magnitude and Age bear a Pro- 
portion to it : For, nothing is nDre obvious in Wound- 
ing the Arteries of Living Animtls, than that the Pro- 
trufion of their Blood bears a Proportion to their Bulk : 
And in DifTedion, the Arteries of the Fetus are remar- 
kably thinner than thofe of an Adult ; and thofe of Aged 
Bodies grow ftill thicker, and frequently become Car- 
tilaginous, and at length ertirely Bony; of which 
Dr. Tyfon and my feif have feyeral Pieces. , 
IL Fart 
