ahead rose and fell during the day. He had noticed that it was highest at dawn and immediately after dusk and that during the night it almost ceased. In the middle of the afternoon of the second day he came upon troops moving up toward the front. They appeared to be raiding parties for they drove goats and cows along with them and there were native porters laden with grain and other foodstuffs. He saw that these natives were all secured by neck chains and he also saw that the troops were composed of native soldiers in German uniforms. The officers were white men. No one saw Tarzan, yet he was here and there about and among them for two hours. He inspected the insignia upon their uniforms and saw that they were not the same as that which he had taken from one of the dead soldiers at the bungalow and then he passed on ahead of them, unseen in the dense bush. He had come upon Germans and had not killed them; but it was because the killing of Germans at large was not yet the prime motive of his existence—now it was to discover the individual who slew his mate. After he had accounted for him he would take up the little matter of slaying all Germans who crossed his path, and he meant that many should cross it, for he would hunt them precisely as professional hunters hunt the man-eaters.
As he neared the front lines the troops became more numerous. There were motor trucks and ox teams and all the impedimenta of a small army and always there were wounded men walking or being
