he egg-shell is as simple as can be: the
Butterflies, attracted by the whiteness, come and lay their eggs upon
it. Broiled by the sun and lacking all nourishment on that thankless
support, the little caterpillars die; and that makes so many fewer.

I insist; I ask them if they have ever seen slabs of eggs or masses of
young caterpillars on those white shells.

"Never," they reply, with one voice.

"Well, then?"

"It was done in the old days and so we go on doing it: that's all we
know; and that's enough for us."

I leave it at that, persuaded that the memory of the Horse's skull,
used once upon a time, is ineradicable, like all the rustic absurdities
implanted by the ages.

We have, when all is said, but one means of protection, which is to
watch and inspect the cabbage-leaves assiduously and crush the slabs of
eggs between our finger and thumb and the caterpillars with our feet.
Nothing is so effective as this method, which makes great demands on
one's time and vigilance. What pains to obtain an unspoilt cabbage! And
what a debt do we not owe to those humble scrapers of the soil, those
ragged heroes, who provide us with the wherewithal to live!

To eat and digest, to accumulate reserves whence the Butterfly will
issue: that is the caterpillar's one and only business. The
Cabbage-caterpillar performs it with insatiable gluttony. Incessantly
it browses, incessantly digests: the supreme felicity of an animal
which is little more than an intestine. There is never a distraction,
unless it be certain see-saw movements which are particularly curious
when several caterpillars are grazing side by side, abreast. Then, at
intervals, all the heads in the row are briskly lifted and as briskly
lowered, time after time, with an automatic precision worthy of a
Prussian drill-ground. Can it be their method of intimidating an always
possible aggressor? Can it be a manifestation of gaiety, when the
wanton sun warms their full paunches? Whether sign of fear or sign of
bliss, this is the only exercise that the gluttons allow themselves
until the proper degree of plumpness is attained.

After a month's grazing, the voracious appetite of my caged herd is
assuaged. The caterpillars climb the trelliswork in every direction,
walk about anyhow, with their forepart raised and searching space. Here
and there, as they pass, the swaying herd put forth a thread. They
wander restlessly, anxiously to travel afar. The exodus now prevented
by t