earlier European writers affirm that it is supposed to represent the sound of "the bird of heaven." At this assemblage, which was the first of a long succession of Mongol councils summoned at the same place on critical occasions, it was proposed and agreed that the war should be carried on with the richer and less warlike races of the south. Among soldiers it is necessary to preserve the spirit of pre-eminence and warlike zeal by granting rewards and decorations. Genghis realized the importance of this matter, and instituted the order of Baturu or Bahadur, meaning warrior. He also made his two leading generals Muhula and Porshu princes, one to sit on his right hand and the other on his left. He addressed them before the council in the following words: "It is to you that I owe my empire. You are and have been to me as the shafts of a carriage or the arms to a man's body." Seals of office were also granted to all the officials, so that their authority might be the more evident and the more honored. In 1207 Genghis began his war with the state of Hia, which he had determined to crush as the preliminary to an invasion of China. In that year he contented himself with the capture of Wuhlahai, one of the border fortresses of that principality, and in the following year he established his control over the tribes of the desert more fully, thus gaining many Kirghiz and Naiman auxiliaries. In 1209 he resumed the war with Hia in a determined spirit, and placed himself in person at the head of all his forces. Although the Hia ruler prepared as well as he could for the struggle, he was really unnerved by the magnitude of the danger he had to face. His army was overthrown, his best generals were taken prisoners, and he himself had no resource left but to throw himself on the consideration of Genghis. For good reasons the Mongol conqueror was lenient. He married one of the daughters of the king, and he took him into subsidiary alliance with himself. Thus did Genghis absorb the Hia power, which was very considerable, and prepared to enroll it with all his own resources against the Kin empire. If the causes of Mongol success on this occasion and afterward are inquired for, I cannot do better than repeat what I previously wrote on this subject: "The Mongols owed their military success to their admirable discipline and to their close study of the art of war. Their military supremacy arose from their superiority in all essentials as a fighting power to their neighbors. Much of their knowledge was borrowed from China, where the art of disciplining a large army and maneuvering it in the field had been brought to a high state of perfection many centuries before the time of Genghis. But the Mongols carried the teaching of the past to a further point than any of the former or contemporary Chinese commanders, indeed, than any in the whole world, had done; and the revolution which they effected in tactics was not less remarkable in