But when we come to the Panurgi, which are cousins of the Dasypodae, a little ray of light suddenly reveals the birth of a new sentiment in this fortuitous crowd. They collect in the same way as the others, and each one digs its own subterranean chambers; but the entrance is common to all, as also the gallery which leads from the surface of the ground to the different cells. "And thus," M. Perez adds, "as far as the work of the cells is concerned, each bee acts as though she were alone; but all make equal use of the gallery that conducts to the cells, so that the multitude profit by the labours of an individual, and are spared the time and trouble required for the construction of separate galleries. It would be interesting to discover whether this preliminary work be not executed in common, by relays of females, relieving each other in turn." However this may be, the fraternal idea has pierced the wall that divided two worlds. It is no longer wild and unrecognisable, wrested from instinct by cold and hunger, or by the fear of death; it is prompted by active life. But it halts once more; and in this instance arrives no further. No matter, it does not lose courage; it will seek other channels. It enters the humble-bee, and, maturing there, becomes embodied in a different atmosphere, and works its first decisive miracles. The humble-bees, the great hairy, noisy creatures that all of us know so well, so harmless for all their apparent fierceness, lead a solitary life at first. At the beginning of March the impregnated female who has survived the winter starts to construct her nest, either underground or in a bush, according to the species to which she belongs. She is alone in the world, in the midst of awakening spring. She chooses a spot, clears it, digs it and carpets it. Then she erects her somewhat shapeless waxen cells, stores these with honey and pollen, lays and hatches the eggs, tends and nourishes the larvae that spring to life, and soon is surrounded by a troop of daughters who aid her in all her labours, within the nest and without, while some of them soon begin to lay in their turn. The construction of the cells improves; the colony grows, the comfort increases. The foundress is still its soul, its principal mother, and finds herself now at the head of a kingdom which might be the model of that of our honeybee. But the model is still in the rough.