Remember the magnificent oval guard-room, running into a vestibule at either end; the egg-chamber slung in the centre and isolated on every side by half a score of pillars; the front-hall expanding into a wide mouth and surmounted by a network of taut threads forming a trap.  The semi-transparency of the walls allows us to see the Spider engaged in her household affairs.  Her cloister of vaulted passages enables her to proceed to any point of the star-shaped pouch containing the eggs.  Indefatigable in her rounds, she stops here and there; she fondly feels the satin, listens to the secrets of the wallet.  If I shake the net at any point with a straw, she quickly runs up to enquire what is happening.  Will this vigilance frighten off the Ichneumon and other lovers of omelettes?  Perhaps so.  But, though this danger be averted, others will come when the mother is no longer there.

Her attentive watch does not make her overlook her meals.  One of the Locusts whereof I renew the supply at intervals in the cages is caught in the cords of the great entrance-hall.  The Spider arrives hurriedly, snatches the giddy-pate and disjoints his shanks, which she empties of their contents, the best part of the insect.  The remainder of the carcass is afterwards drained more or less, according to her appetite at the time.  The meal is taken outside the guard-room, on the threshold, never indoors.

These are not capricious mouthfuls, serving to beguile the boredom of the watch for a brief while; they are substantial repasts, which require several sittings.  Such an appetite astonishes me, after I have seen the Crab Spider, that no less ardent watcher, refuse the Bees whom I give her and allow herself to die of inanition.  Can this other mother have so great a need as that to eat?  Yes, certainly she has; and for an imperative reason.

At the beginning of her work, she spent a large amount of silk, perhaps all that her reserves contained; for the double dwelling—­for herself and for her offspring—­is a huge edifice, exceedingly costly in materials; and yet, for nearly another month, I see her adding layer upon layer both to the wall of the large cabin and to that of the central chamber, so much so that the texture, which at first was translucent gauze, becomes opaque satin.  The walls never seem thick enough; the Spider is always working at them.  To satisfy this lavish expenditure, she must incessantly, by means of feeding, fill her silk-glands as and when she empties them by spinning.  Food is the means whereby she keeps the inexhaustible factory going.

A month passes and, about the middle of September, the little ones hatch, but without leaving their tabernacle, where they are to spend the winter packed in soft wadding.  The mother continues to watch and spin, lessening her activity from day to day.  She recruits herself with a Locust at longer intervals; she sometimes scorns those whom I myself entangle in her trap.  This increasing abstemiousness, a sign of decrepitude, slackens and at last stops the work of the spinnerets.