There remains, it is true, the insect-world, in which marvellous things happen. It includes architects, geometricians, mechanicians, engineers, weavers, physicists, chemists and surgeons who have forestalled most of our human inventions. I need not here remind the reader of the wasps' and bees' genius for building, the social and economic organization of the hive and the ant-hill, the spider's snares, the eumenes' nest and hanging egg, the odynerus' cell with its neat stacks of game, the sacred beetle's filthy but ingenius ball, the leafcutter's faultless disks, the brick-laying of the mason-bee, the three dagger-thrusts which the aphex administers to the three nerve-centres of the cricket, the lancet of the cerceris, who paralyses her victims without killing them and preserves them for an indefinite period as fresh meat, nor a thousand other features which it would be impossible to enumerate without recapitulating the whole of Henri Fabre's work and completely altering the proportions of the present essay. But here such silence and such darkness reign that we have nothing to hope for. There exists, so to speak, no bench-mark, no means of communication between the world of insects and our own; and we are perhaps less far from grasping and fathoming what takes place in Saturn or Jupiter than what is enacted in the ant-hill or the hive. We know absolutely nothing of the quality, the number, the extent or even the nature of their senses. Many of the great laws on which our life is based do not exist for them: those, for instance, which govern fluids are completely reversed. They seem to inhabit our planet, but in reality move in an entirely different world. Understanding nothing of their intelligence pierced with disconcerting gaps, in which the blindest stupidity suddenly comes and destroys the ablest and most inspired schemes, we have given the name of instinct to that which we could not apprehend, postponing our interpretation of a word that touches upon life's most insoluble riddles. There is, therefore, from the point of view of the intellectual faculties, nothing to be gathered from those extraordinary creatures who are not, like the other animals, our "lesser brothers," but strangers, aliens from we know not where, survivors or percursors of another world. 21