449 
Destruction of the Membrana Tympani . 
of the sense of hearing, and that, even when this membrane is 
entirely destroyed, another is found to perform its functions ; 
so that the powers of the organ have still been, in a considerable 
degree, preserved. 
Let it also be recollected, as a farther encouragement, that in 
the operation I have mentioned, little pain is felt, no dangerous 
consequences follow, and, even if it is sometimes performed 
unsuccessfully, the patient is left with the same capacity as 
before, of receiving relief from other remedies. 
3 M 
MDCCCI. 
