belonging to each great group sustain to each other the relations of a common kinship. Englishmen look like each other, act like each other, and speak the same language. So do Frenchmen and Swedes and Chinese. Every people is peculiar. This is not the result of accident or agreement, but the result of law. Mongolians do not all have short heads, yellow faces, slanting eyes, and prominent malars because they have agreed to have them, but as a result of a common pedigree. Similarity of structure implies commonalty of origin, and commonalty of origin means consanguinity. And this is true whether you contemplate the featural resemblances of brothers and sisters of the same human parent, or those more fundamental characteristics which distinguish species, orders, and sub-kingdoms. All animals are composed of protoplasm, which is a compound of clay, because all animals are descended from the same first parents, protoplasmic organisms evolved out of the elemental ooze. All vertebrates have nerve-filled backbones with two pairs of ventrally branching limbs, because the original ancestors of the vertebrates had nerve-filled backbones with two pairs of ventrally branching limbs. Insects individually evolve from worms because worms are their phylogenetic fathers and mothers. Man has hands and a vertical spine, and walks on his hind-limbs, not because he was fashioned in the image of a god, but because his ancestors lived among the trees. The habit of using the posterior limbs for locomotion, and the anterior for prehension, and the resulting perpendicular, are peculiarities developed by our simian ancestors wholly on account of the incentives to such structure and posture afforded by aboreal life. These peculiarities would not likely have been acquired by quadrupeds living upon and taking their food from a perfectly level and treeless plain. If there had been no forests on the earth, therefore, there would have been no incentive to the perpendicular, and the ‘human form divine’ would have been inconceivably different from what it is to-day. And if fishes had had three serial pairs of limbs instead of two, and their posterity had inherited them, as they certainly would have had the foresight to do if they had had the opportunity, the highest animals on the earth to-day, the ‘paragons of creation,’ would probably be two-handed quadrupeds (centaurs) instead of two-handed bipeds. And much more efficient and ideal individuals they would have been in every way than the rickety, peculiar, unsubstantial plantigrades who, by their talent to talk, have become the masters of the universe, and, by their imaginations, ‘divine.’