Dt'velopiiu'nt of Amphthiati Ear Fcsicle 445 



to the right side it retains its characteristics as a left-sided organ, 

 though it otherwise adapts itself to its new position in a normal 

 manner. 



1 he functional disturbance, in experiments on the ear vesicle, 

 is out of all proportion to the histological appearances; any opera- 

 tion carried out in the acoustic region involving a loss of part ot 

 the wall of the ear vesicle, or disturbing its position, or nerve con- 

 nection with the brain results in faulty equilibrium; absence ot 

 function was observed in cases where the labyrinth and its nerve 

 connections seemed to have attained perfect histological develop- 

 ment. 



