296 Observations on the Labyrinth of Certain Animals. 



magnified about four times. The lettering and magnification refer only to the outline 

 drawings. The position of the object is not always the same in the drawing as in the 

 photograph. 



The lettering is the same for all the plates. 



n. c. 



Cochlear nerve. 



e. h. 



Endolymph space of the Horizontal 



a. h. 



Ampulla of the Horizontal Canal. 





Canal. 



a. s. 



Ampulla of the Superior Canal. 



c. 



Cochlea. 



e. s. 



Endolymph space of Superior Canal. 



X. 



Fenestra rotunda. 



p. s. 



Perilymph space of Superior Canal. 



h. 



Horizontal Canal. 



v. 



Vestibule. 



p.p. 



Perilymph space of Posterior 



a. p. 



Ampulla of the Posterior Canal. 





Canal. 



0. 



Otolith. 



e. p. 



Endolymph space of Posterior 



P- 



Posterior Canal. 





Canal. 



p. h. 



Perilymph space of the Horizontal 



a. c. 



Aqueduct of the cochlea. 





Canal. 







