n, by certain attempts to get away. Well, nothing of the kind
happens: once the larva has found the right position in the groove, it
does not stir. I do more: I set before it, at a very short distance, in
its normal canal, a piece of camphor. Again, no effect. Camphor is
followed by naphthaline. Still nothing. After these fruitless
endeavours, I do not think that I am going too far when I deny the
creature a sense of smell.

Taste is there, no doubt. But such taste! The food is without variety:
oak, for three years at a stretch, and nothing else. What can the
grub's palate appreciate in this monotonous fare? The tannic relish of
a fresh piece, oozing with sap, the uninteresting flavour of an
over-dry piece, robbed of its natural condiment: these probably
represent the whole gustative scale.

There remains touch, the far-spreading, passive sense common to all
live flesh that quivers under the goad of pain. The sensitive schedule
of the Cerambyx-grub, therefore, is limited to taste and touch, both
exceedingly obtuse. This almost brings us to Condillac's statue. The
imaginary being of the philosopher had one sense only, that of smell,
equal in delicacy to our own; the real being, the ravager of the oak,
has two, inferior, even when put together, to the former, which so
plainly perceived the scent of a rose and distinguished it so clearly
from any other. The real case will bear comparison with the fictitious.

What can be the psychology of a creature possessing such a powerful
digestive organism combined with such a feeble set of senses? A vain
wish has often come to me in my dreams; it is to be able to think, for
a few minutes, with the crude brain of my Dog, to see the world with
the faceted eyes of a Gnat. How things would change in appearance! They
would change much more if interpreted by the intellect of the grub.
What have the lessons of touch and taste contributed to that
rudimentary receptacle of impressions? Very little; almost nothing. The
animal knows that the best bits possess an astringent flavour; that the
sides of a passage not carefully planed are painful to the skin. This
is the utmost limit of its acquired wisdom. In comparison, the statue
with the sensitive nostrils was a marvel of knowledge, a paragon too
generously endowed by its inventor. It remembered, compared, judged,
reasoned: does the drowsily digesting paunch remember? Does it compare?
Does it reason? I defined the Capricorn-grub as a bit of an