A Naturalist suggests another difficulty. The human is the only species which, however unequal in its races, can breed together. “There is no question of selection between _human races_,” say the anti‐Darwinists, and no Evolutionist can deny the argument—one which very triumphantly proves _specific unity_. How then can Occultism insist that a portion of the Fourth Race humanity begot young ones from females of another, only semi‐ human, if not quite an animal, race; the hybrids resulting from which union not only bred freely but produced the ancestors of the modern anthropoid apes? Esoteric Science replies to this that it was in the very beginnings of physical man. Since then, Nature has changed her ways, and sterility is the only result of the crime of man’s bestiality. But we have even to‐day proofs of this. The Secret Doctrine teaches that the _specific unity of mankind_ is not without exceptions even now. For there are, or rather still were a few years ago, descendants of these half‐animal tribes or races, both of remote Lemurian and Lemuro‐Atlantean origin. The world knows them as Tasmanians (now extinct), Australians, Andaman Islanders, etc. The descent of the Tasmanians can be almost proved by a fact, which struck Darwin a good deal, without his being able to make anything of it. This fact deserves notice. De Quatrefages and other Naturalists, who seek to prove Monogenesis by the very fact of every race of mankind being capable of crossing with every other, have left out of their calculations _exceptions_, which do not in this case confirm the rule. Human crossing may have been a general rule from the time of the separation of sexes, but this does not prevent another law asserting itself, viz., sterility between two human races, just as between two animal species of different kinds, in those rare cases when a European, condescending to see in a female of a savage tribe a mate, happens to choose a member of such mixed tribes.(446) Darwin notes such a case in a Tasmanian tribe, whose women were suddenly struck with sterility, _en masse_, some time after the arrival among them of European colonists. The great Naturalist tried to explain this fact by change of diet, food conditions, etc., but finally gave up the solution of the mystery. For the Occultist it is very evident. “Crossing,” as it is called, of Europeans with Tasmanian women—_i.e._, the representatives of a race, whose progenitors were a “soulless”(447) and mindless monster, with a real human, though still as mindless a man—brought on sterility; and this, not only as a consequence of a physiological law, but also as a decree of Karmic evolution in the question of further survival of the abnormal race. In no one point of the above is Science prepared to believe _as yet_—but it will have to in the long run. Esoteric Philosophy, let us remember, only fills the gaps left by Science and corrects her false premisses.