Furthermore, when we 47
press the eye on the side, the figures, forms and sizes of
things seen appear elongated and narrow. It is therefore
probable that such animals as have the pupil oblique and long,
as goats, cats, and similar animals, have ideas different from
those of the animals which have a round pupil. Mirrors according
to their different construction, sometimes show the external 48
object smaller than reality, as concave ones, and sometimes long
and narrow, as the convex ones do; others show the head of the
one looking into it down, and the feet up. As some of the
vessels around the eye fall entirely outside the eye, on 49
account of their protuberance, while others are more sunken, and
still others are placed in an even surface, it is probable that
for this reason also the ideas vary, and dogs, fishes, lions,
men, and grasshoppers do not see the same things, either of the
same size, or of similar form, but according to the impression
on the organ of sight of each animal respectively. The same
thing is true in regard to the other senses; for how can it 50
be said that shell-fish, birds of prey, animals covered with
spines, those with feathers and those with scales would be
affected in the same way by the sense of touch? and how can the
sense of hearing perceive alike in animals which have the
narrowest auditory passages, and in those that are furnished
with the widest, or in those with hairy ears and those with
smooth ones? For we, even, hear differently when we partially
stop up the ears, from what we do when we use them naturally.
Pages:
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135