Let us conceive of such an ant standing before St. Peter’s Cathedral at Rome and asking of his species: “Who made that great building?” We may anticipate the reply, “We do not know.” Hear him ask again the question of all birds, insects, reptiles, and animals and receive the same answer, “We do not know.” Let him ask it at last of man who replies, “I well know who made it.” Encouraged he asks again, “Did you make it,” but the answer comes quickly, “No.” Still persistent he asks, “Could you make it?” and the answer is “No, it is not every man that could make such a building and surmount it with so wondrous a dome.” Once again he asks: “But if you did not, and could not make it, how do you know the builder of it?” He receives the answer: “I know as well as though I myself had done it. I have brain-power enough to know who planned it but it required one with a greater brain, even Michael Angelo, to conceive and build it.” We have here seen the power of a brain smaller than a pin’s head; the additional power of one a few inches in diameter that could _know_ the constructor of the great building, and yet be unable to make it; and the further increase of brain-power in the maker of that magnificent Cathedral. Yet the brain of Michael Angelo, so many times larger than the ants, is not enough for our purpose. We would find one large enough to know how the ant’s brain was formed and who formed it. Finding the brain knowing that, we would continue our queries until we found one a foot in size, a mile, earth’s size if you will, and finding that might learn what we would know of the creation of the nebulae of worlds and life; for to that brain we owe all that we possess here and may ever expect to possess.