the same instant Oo rears and throws himself upon the youth, who has snatched his stone hunting knife from between his teeth and crouches, ready for the impact. Down they go, the man entirely buried beneath the great body of his antagonist. Again and again the crude knife is buried in the snowy breast of the tiger even while Nu is falling beneath the screaming, tearing incarnation of bestial rage. At the instant it strikes the man as strange that not once have the snapping jaws or frightful talons touched him, and then he is crushed to earth beneath the dead weight of Oo. The beast gives one last, Titanic struggle, and is still. With difficulty Nu wriggles from beneath the carcass of his kill. At the last moment the tiger itself had forced the spear's point into its own heart as it bent and broke the haft. The man leaps to his feet and cuts the great throat. Then, as the blood flows, he dances about the dead body of his vanquished foe, brandishing his knife and recovered hatchet, and emitting now shrill shrieks in mimicry of Oo, and now deep toned roars—the call of the victorious cave man. From the surrounding cliffs and jungle came answering challenges from a hundred savage throats—the rumbling thunder of the cave-bear's growl; the roar of Zor, the lion; the wail of the hyena; the trumpeting of the mammoth; the deep toned bellowing of the bull bos, and from distant swamp and sea came the hissing and whistling of saurians and amphibians. His victory dance completed, Nu busied himself in the removal of the broken spear from the carcass of his kill. At the same time he removed several strong tendons from Oo's fore arm, with which he roughly spliced the broken haft, for there was never an instant in the danger fraught existence of his kind when it was well to be without the service of a stone-tipped spear. This precaution taken, the man busied himself with the task of cutting off Oo's head, that he might bear it in triumph to the cave of his love. With stone hatchet and knife he hacked and hewed for the better part of a half hour, until at last he raised the dripping trophy above his head, as, leaping high in air, he screamed once more the gloating challenge of the victor, that all the world might know that there was no greater hunter than Nu, the son of Nu. Even as the last note of his fierce cry rolled through the heavy, humid, super-heated air of the Niocene there came a sudden hush upon the face of the world. A strange darkness obscured the