If, from this great picture of resemblances, in which the living universe presents itself as but one family, we pass to that of the differences, wherein each species claims a separate place, and a distinct portrait, we shall perceive, that excepting some of the larger species, such as the elephant, the rhinoceros, the hippopotamus, the tiger, and the lion, every other seems to unite with its neighbouring kind, and to form groups of degraded similitudes, or genera, which our nomenclators have represented in a network of figures, some of which are connected by the feet, and others by the teeth, horns, hair, and others by still smaller affinities. And even the apes, whose form appears to be the most perfect, that is, approaches nearest to that of man, are represented confusedly, and require very accurate observations to distinguish one from the other, because the privilege of separate species is less owing to form than size. Man himself, although a single species, and infinitely removed from that of all other animals, yet being only of a middle size, has more approximations than the larger kinds. We shall find in the history of the orang-outang that if we were only to attend to the figure, we might look on that, animal either as the termination of the human species, or the commencement of the ape; because, except the intellect, he is not deficient in any one thing which we possess, and because, in his body, he differs less from man than from the other animals to which we have given the denomination of apes.