3 3 s" 3 5 



o« ^^ Memhrana Tympani. 21 



prove that the membrana tympani of the ear has a muscular 

 structure, have already exceeded the limits of a lecture, which 

 prevents us from going further at present into the considera- 

 tion of this very curious and important organ. The general 

 analogy between the uses of its different parts and those of the 

 organ of vision, and the similar variations of their actions when 

 under the influence of disease, furnish materials which, on 

 some future occasion, may be laid before this learned Society. 



