HEARING. 613 
etc., of three different fundamental sensations, or the result of 
chemical processes few in kind, why should not hearing be 
explained in an equally simple way ? Such views as those re- 
A B 
Fie. 455.—Longitudinal section of ampulla, somewhat diagrammatic (after Huxley). c. end 
ir cit, Uy e Dial inaybe lean peucindcal foam ef eaditory mene: er aonne sive iene 
support for auditory hairs. Put 2 i 
ferred to above seem to us utterly at variance with the funda- 
mental conceptions of biology; are so purely conceptions that 
have their birth in physics, that we deem it wiser to rest with- 
out any attempt at an “explanation of the origin of auditory 
sensations in detail, than to accept such artificial and inadequate 
solutions as have been proposed. Subjective sensations of hear- 
ing are common enough in the insane, and answer to the visions 
of the same class of persons; so that we must recognize the 
possibility of such sensations arising without the usual external 
stimulus. 
