others heaviest at the tip in club shape, or they may be of even
proportion but flat, or round, or a feathered shaft so fine as to
be unnoticed as it lies pressed against the face. Some writers say
the antennae are the seat of scent, touch, and hearing. I had not
thought nature so impoverished in evolving her forms as to overwork
one delicate little organ for three distinct purposes. The
antennae are situated close where the nose is, in almost every
form of life, and I would prefer to believe that they are the
organs of scent and feeling. I know a moth suffers most over any
injury to them; but one takes flight no quicker or more precipitately
at a touch on the antennae than on the head, wing, leg, or abdomen.

We are safe in laying down a law that antennae are homologous organs
and used for identical purposes on all forms of life carrying them.
The short antennae of grasshoppers appear to be organs of scent.
The long hair-fine ones of katydids and crickets may be also, but
repeatedly I have seen these used to explore the way ahead over leaves
and limbs, the insect feeling its path and stepping where a touch
assures it there is safe footing. Katydids, crickets, and
grasshoppers all have antennae, and all of these have ears definitely
located; hence their feelers are not for auricular purposes.
According to my logic those of the moth cannot be either. I am quite
sure that primarily they serve the purpose of a nose, as they
are too short in most cases to be of much use as `feelers,' although
that is undoubtedly their secondary office. If this be true, it
explains the larger organs ofthe male. The female emerges from
winter quarters so weighted with carrying from two to six hundred
eggs, that she usually remains and develops where she is. This
throws the business of finding her location on the male. He is
compelled to take wing and hunt until he discovers her; hence his