We must now examine the cases in which a solidarity of instinct is found to exist between several individuals, so that, on the one hand, the action of each redounds to the common welfare, and, on the other, it becomes possible for a useful purpose to be achieved through the harmonious association of individual workers. This community of instinct exists also among the higher animals, but here it is harder to distinguish from associations originating through conscious will, inasmuch as speech supplies the means of a more perfect intercommunication of aim and plan. We shall, however, definitely recognise {129} this general effect of a universal instinct in the origin of speech and in the great political and social movements in the history of the world. Here we are concerned only with the simplest and most definite examples that can be found anywhere, and therefore we will deal in preference with the lower animals, among which, in the absence of voice, the means of communicating thought, mimicry, and physiognomy, are so imperfect that the harmony and interconnection of the individual actions cannot in its main points be ascribed to an understanding arrived at through speech. Huber observed that when a new comb was being constructed a number of the largest working-bees, that were full of honey, took no part in the ordinary business of the others, but remained perfectly aloof. Twenty-four hours afterwards small plates of wax had formed under their bellies. The bee drew these off with her hind-feet, masticated them, and made them into a band. The small plates of wax thus prepared were then glued to the roof of the hive one on the top of the other. When one of the bees of this kind had used up her plates of wax, another followed her and carried the same work forward in the same way. A thin rough vertical wall, half a line in thickness and fastened to the sides of the hive, was thus constructed. On this, one of the smaller working-bees whose belly was empty came, and after surveying the wall, made a flat half-oval excavation in the middle of one of its sides; she piled up the wax thus excavated round the edge of the excavation. After a short time she was relieved by another like herself, till more than twenty followed one another in this way. Meanwhile another bee began to make a similar hollow on the other side of the wall, but corresponding only with the rim of the excavation on this side. Presently another bee began a second hollow upon the same side, each bee being continually relieved by others. Other bees kept coming up and bringing under their bellies plates of wax, with which they heightened the edge of the small wall of wax. In this, new bees were constantly excavating the ground for more cells, while others proceeded by degrees to bring those already begun into a perfectly symmetrical shape, and at the same time continued building up the prismatic walls between them. Thus the bees worked on