OF THE SPERM WHALE. 
eye was placed at nearly the greatest lateral projection* 
a little inferiorly ; the eyelids were formed of a duplica- 
ture of the outer covering, about an inch in thickness* 
the upper lid projecting like a dap, and the opening was 
about seven inches in length.” 
Mr. F. D. Bennett, in a paper read before the Zoo- 
logical Society, December 13, 1836, gave the following 
account of the eye of the sperm whale : 
“The eye of the cachalot,” said he, “is small and 
placed far back on the head, above and between the 
pectoral fin and angle of the lower jaw. Its situation is 
chiefly marked by a raised portion of integument around 
it. The aperture for vision does not exceed two inches 
in the longitudinal and one inch in the vertical direction. 
The eyelids are without cilia and tarsal cartilages ; they 
are composed of two horizontal bands of integument, 
each (in the example from which I describe— viz. a half- 
grown male) two inches in depth, and connected with 
each other at the inner and outer canthus. Between each 
of the eyelids and the blubber exists a distinct line of 
separation, marked by a somewhat deep groove, having 
a duplicature of thin membrane, serving as a surface or 
hinge on which the lids move. At these lines of de- 
marcation all integument partaking of the nature of fat 
ceases, and the texture of the tarsi thus insulated is 
composed solely of common skin and cellular and other 
membranes, together with a dense layer of muscular 
fibres deposited in its centre. The conjunctiva of the 
lids is highly vascular, injected with blood, and covered 
with orifices of mucous ducts. At the inner canthus of 
