Man was at last prepared to face the rigors of winter, the perils of ice, and secure himself against starvation. Not content with his conflicts with nature, his brutal passion is aroused against his fellows. Death-dealing blows fall rapidly upon each other, the blood flows freely, the bones give way, and the weaker one has succumbed. There are fierce contentions over the common prey, and the strong impose upon the weak. True to his instinct, he is gregarious. He lives in communities; and the more daring--the hunters--having their common places of meeting, fashion their weapons, and vie with each other in feats of prowess. During the glacial epoch the condition of man must have remained unchanged, after he had supplied himself with rude stone weapons. His time was spent, for the most part, in self-preservation. He was retreating before, yet bounding over, the frozen flood in pursuit of game. This experience must ultimately tell for good. When the glaciers began to recede, man followed closely, and forgot not the value of those stone weapons which had secured food for himself. They served against the cave-bear, cave-hyena, cave-lion, and would be of great service in the ages yet to come. By a little remodelling they could be used to greater advantage; and this change of shape was accomplished, and other uses of flint were made known. Man's form, aspect, and true position are comprehended by the relics of the glacial age. The human bones tell a tale which any anatomist may read, and even one not well skilled in the art. The primitive type is no mystery, and those fossil bones tell of the terrific strifes of by-gone times. The Neanderthal man has already been described. Its structure is animal. Its history agrees with the generally received idea of primitive man as conceived by the geologist. The illustration (frontispiece) presents him bestial and ape-like. A powerful organization, and well adapted to those times. His bones tell of fearful conflicts. He lived to an old age, as the traces of every suture are effaced. His skull was very thick. The strong, prominent superciliary arches denote large perceptives, making him watchful and always on the alert. Those bones tell of a terrible conflict. The left arm was broken; who knows but in a contest with the great cave-bear. He survived the contest and lived to see that arm dwindle and become almost useless. Over the right eye he received a blow, from some source, so great as to carry away a portion of the bone. The claw of a cave-bear, or a flint weapon in the hand of one of his race, may have produced that fracture. Still he lived, and the wound healed. All this tells of his strength and hardihood. It gives an inside view of the wonderful hardships and vicissitudes of primeval man.