factors that enter into the problem are not and cannot be on the instant accurately measured. The collision of two heavenly bodies in the depth of space, which does happen, is, from our point of view, a matter of chance, although governed by inexorable law. The forms of inanimate objects--rocks, hills, rivers, lakes--are matters of chance, since they serve no purpose: any other form would be as fit; but the forms of living things are always purposeful. Is it possible to believe that the human body, with all its complicated mechanism, its many wonderful organs of secretion and excretion and assimilation, is any more matter of chance than a watch or a phonograph is? Though what agent to substitute for the word "chance," I confess I do not know. The short cut to an omnipotent Creator sitting apart from the thing created will not satisfy the naturalist. And to make energy itself creative, as Professor Osborn does, is only to substitute one god for another. I can no more think of the course of organic evolution as being accidental in the Darwinian sense, than I can think of the evolution of the printing-press or the aeroplane as being accidental, although chance has played its part. Can we think of the first little horse of which we have any record, the eohippus of three or four millions of years ago, as evolving by accidental variations into the horse of our time, without presupposing an equine impulse to development? As well might we trust our ships to the winds and waves with the expectation that they will reach their several ports. Are we to believe that we live in an entirely mechanical and fortuitous world--a world which has no interior, which is only a maze of acting, reacting, and interacting of blind physical forces? According to the chance theory, the struggle of a living body to exist does not differ from the vicissitudes of, say, water seeking an equilibrium, or heat a uniform temperature. Chance has played an important part in human history, and in all life-history--often, no doubt, the main part--since history began. It was by chance that Columbus discovered America; he simply blundered upon it. He had set out on his voyage with something quite different in view. But his ship, and the crew, and the voyage itself, were not matters of chance but of purpose.