102 THE MAMMOTH CAVE. 



organ of hearing (which I believe has not been 

 before noticed), all its parts were largely devel- 

 oped, as will be seen by reference to figures 2 

 and 3. [We regret that we are unable to intro- 

 duce the figures here.] As regards the general 

 structure, the parts do not differ materially from 

 those of other fishes, except for their propor- 

 tional dimensions. The semicircular canals are 

 of great length, and the two which unite to 

 enter the vestibule by a common duct, it will 

 be seen, project upwards and inwards under the 

 vault of the cranium, so as to approach quite 

 near to the corresponding parts of the opposite 

 side. The otolite contained in the utricle was 

 not remarkable, but that of the vestibule is 

 quite large when compared with that of a 

 Leuciscus of about the same dimensions as the 

 blind fish here described." 



After these dry scientific details of some of 

 the inhabitants of the Cave, which may prove 

 interesting to those readers whose studies lead 

 them in such channels, and for which we ask 

 the forbearance of the general reader, we will 

 proceed with the narrative of our journey. 



