HEARING. 



37 



has several of these passages, which are much in 

 the form of wind instruments of the convoluted kind, 

 being full of turns and windings like a French horn. 

 From their intricacy they are called the labyrinth. 



Sections of the Cochlea. 



External view of the 



Cochlea and 

 semicircular Canal. 



Section of Cochlea and semicircular Canals. 



The labyrinth is filled with a fluid of a watery 

 consistence, which being in contact with the nerve, 

 which is spread in numberless branches over its inner 

 surface, is conceived to act a similar part in the 

 conveyance of sounds, as the fluid in the mouth and 



