We have shown above that the only solid scientific stronghold of the believers in unity of species is the prolificness of human hybrids. This fact, which seems at present so difficult to refute, may not always present the same difficulties, and would not, by itself, suffice to arrest my conclusions, were it not supported by another argument which, I confess, appears to me of greater moment: Scripture is said to declare against difference of origin. If the text is clear, peremptory, and indisputable, we must submit; the most serious doubts must disappear; human reason, in its imperfection, must bow to faith. Better to let the veil of obscurity cover a point of erudition, than to call in question so high and incontestable an authority. If the Bible declares that mankind are descended from the same common stock, all that goes to prove the contrary is mere semblance, unworthy of consideration. But is the Bible really explicit on this point? The sacred writings have a much higher purpose than the elucidation of ethnological problems; and if it be admitted that they may have been misunderstood in this particular, and that without straining the text, it may be interpreted otherwise, I return to my first impression. The Bible evidently speaks of Adam as the progenitor of the white race, because from him are descended generations which--it cannot be doubted--were white. But nothing proves that at the first redaction of the Adamite genealogies the colored races were considered as forming part of the species. There is not a word said about the yellow nations, and I hope to prove, in my second volume, that the pretended black color of the patriarch Ham rests upon no other basis than an arbitrary interpretation. At a later period, doubtless, translators and commentators, who affirmed that Adam was the father of all beings called men, were obliged to bring in as descendants of the sons of Noah all the different varieties with whom they were acquainted. In this manner, Japheth was considered the progenitor of the European nations, while the inhabitants of the greater portion of Asia were looked upon as the descendants of Shem; and those of Africa, of Ham. This arrangement answers admirably for one portion of the globe. But what becomes of the population of the rest of the world, who are not included in this classification?