This excessive toil ages the mother in a few days. She wears herself out, yet does not enjoy the fruit. Frequently the elaborate cradle serves for another. Too frequently a usurping stranger seizes upon it, profits by the meritorious work, and establishes there its progeny, which will not only consume the provision of the rightful tenant, but feed also on the unfortunate tenant himself! Who will not bestow a glance of pity on this great work, and a result of such uncertain character? In the burning days of July, when the narrow belt of forests surrounding Fontainebleau concentrated upon it the summer heats, we were astonished at the incessant and continuous labour, despite the indolence of the season, of a solitary bee which was ever going and coming. Her indefatigable journeys always brought her near some vases of camelias and rose-bays. I saw her, still fair and shapely, of a beautiful brown mingled with black, returning, at regular intervals of about five minutes, with woven fragments of leaves, which she introduced through a deep aperture into the soil of the vase where she had made her nest. For three days she worked with undiminished ardour. There were no signs that she took the least food: constantly at her work, she appeared to have already abandoned all care for her own life. Her preoccupation was so great and her activity so eager that we were able to approach her very closely. Nothing frightened her; so that we could establish ourselves at our ease near her little nest, and observe her with as much patience as she herself brought to her work. On the fourth morning we found the opening closed, and we saw her no more. She had completed her task. Exhausted, but rejoicing at its conclusion, she had retired undoubtedly to some obscure recess to await her destiny. We proceeded delicately to loosen the soil around the sides of the vase, in order to examine into what she had done. At the bottom, resembling in shape a couple of thimbles, lay two cradles, and in these cradles two little ones. All the care had been for them: so many young, so many cells. Each was composed of six-and-twenty fragments of leaves. Réaumur, in a similar nest, counted but sixteen. Six of these fragments, which closed up the entrance, were perfectly round,--a remarkable fact, if we bear in mind that the instrument which achieved the work was by no means appropriate to it. Yet they were as accurately finished off as if done by a punch. The other portions of leaf, cut into ovals, and carefully placed one upon another in due accordance with the contour of the nest, resembled so many roofs designed by the indefatigable mother as a protection against the wind and rain. At the bottom lay a little honey; the last and tender legacy of the mother, bequeathed by her to those whom she had abandoned for ever.