telligence in their
benighted minds. The facts, however, reply that the descent is as easy
as the ascent.

The caterpillar has a very supple back, well adapted for twisting round
projections or slipping underneath. He can walk with the same ease
vertically or horizontally, with his back down or up. Besides, he never
moves forward until he has fixed his thread to the ground. With this
support to his feet, he has no falls to fear, no matter what his
position.

I had a proof of this before my eyes during a whole week. As I have
already said, the track, instead of keeping on one level, bends twice,
dips at a certain point under the ledge of the vase and reappears at
the top a little farther on. At one part of the circuit, therefore, the
procession walks on the lower surface of the rim; and this inverted
position implies so little discomfort or danger that it is renewed at
each turn for all the caterpillars from first to last.

It is out of the question then to suggest the dread of a false step on
the edge of the rim which is so nimbly turned at each point of
inflexion. The caterpillars in distress, starved, shelterless, chilled
with cold at night, cling obstinately to the silk ribbon covered
hundreds of times, because they lack the rudimentary glimmers of reason
which would advise them to abandon it.

Experience and reflection are not in their province. The ordeal of a
five hundred yards' march and three to four hundred turns teach them
nothing; and it takes casual circumstances to bring them back to the
nest. They would perish on their insidious ribbon if the disorder of
the nocturnal encampments and the halts due to fatigue did not cast a
few threads outside the circular path. Some three or four move along
these trails, laid without an object, stray a little way and, thanks to
their wanderings, prepare the descent, which is at last accomplished in
short strings favoured by chance.

The school most highly honoured to-day is very anxious to find the
origin of reason in the dregs of the animal kingdom. Let me call its
attention to the Pine Processionary.

CHAPTER 9. THE SPIDERS.

THE NARBONNE LYCOSA, OR BLACK-BELLIED TARANTULA.

THE BURROW.

Michelet has told us how, as a printer's apprentice in a cellar, he
established amicable relations with a Spider. (Jules Michelet
(1798-1874), author of "L'Oiseau" and "L'Insecte," in addition to the
historical works for which he is chiefly known. As a lad, he helped his