failing in this, writhed in agony for a few moments and then lay perfectly still. He was dead, and Longhead looked with wonder and awe at his victim. Fighting was not uncommon among the men of that period, but being without dangerous weapons, the fights had generally resulted in one or both the combatants being more or less seriously but not dangerously injured, and this was the first time Longhead had ever seen one human being killed by another. Deaths he had, of course, known, but they had been from disease, accident or wild animals. He now heard some of the people approaching, and drawing his javelin from the corpse, he concealed himself near-by to observe the effect when they should discover the body. There were three of the party, and at first they thought Bear asleep and shouted to arouse him, but when they discovered the blood and the hole in his breast, they perceived that he was dead. Longhead in hiding heard no expressions of sorrow or regret, for, to tell the truth, Bear was no favorite with the group. His immense size and irascible disposition had made him a bully, and there were few who had not been beaten by him at some time; therefore, the remarks overheard by the man in hiding were rather to the effect that the finders were well enough pleased, but they expressed great wonder at the wound and could not conceive what animal had caused it, especially as there were no marks of teeth or claws or any other wounds on the body. They picked up the corpse, however, and started with it toward the late habitation of the giant. Longhead left his retreat and proceeded thoughtfully toward the fire-cave. His revenge was gratified and he felt happy on that account, but the wonderful character of his weapon was beginning to dawn upon his dull intelligence, and he no longer feared man or beast. He dimly recognized that with such a weapon a small man was the equal of a giant. CHAPTER III GERMS OF SOCIAL ORGANIZATION