( 4P ) 
worth while to notice that in the very cutting, before 
we got a free Aperture into the ‘t racbea^ and the Pipe 
introduced, the Patient felt fome Relief j which I 
thought might be afcribed to the EfFuQon of Blood in 
the Operation ; a fmall Quantity whereof evacuated fo 
near, the Part afFeded could not, according to the true 
Laws of Hydrmlicks^ and the Obfervations and Pra- 
ctice of the Ancients (however difagreeing with Bel* 
Ihn'^ T'heory) but make a more conliderable Revuhion, 
than a much greater taken away at a great Diftance. 
Whence the judicious Fah. ab Aquapendente (p. 480.) 
with very good Reafon fuppofed that by the De- 
rivation here, the Patient would be more apt to feel 
fome Relief than Trouble. Which Julius Gtiajavi* 
nus too made no Doubt of in his Difpute upon this 
Subjed againft Aretaus (See M. Aur. Seuerin. p. 103.) 
And now their Suppohtion and Conjedure is confirmed 
by Experience. And (ince there continued a greater 
Flux of Blood to the Wound while it was fuppurating, 
I reckoned the Circulation in the Mufcles of the La* 
rynx to be with lefs Force than ordinary, and fo pro- 
bably to contribute to the diminifhing the Strength of 
the Voice, which for a good many Days after the O- 
peration, was obferved to be much weaker than it ufed 
to be. Which I all along thought was rather owing 
to this, and the Lownefs of his Body by his llender 
Diet, than to any Hurt of the recurrent Nerves 5 
which being cut, do indeed deftroy the Voice, but by 
their Deepnefs, are in lefs Hazard than fome in old 
Times ufed to think. 
In doing the Operation on a living Perfon, one can- 
not but remark at the very firft, that the Cannula 
(hould not be made near fo (hort as is ordinarily pro- 
pofed 
