itself, and did not leave a smaller impression upon the age, than the improvements made in military science by Frederick the Great and Napoleon in their day. The Mongol played in a large way in Asia the part which the Normans on a smaller scale played in Europe. Although the landmarks of their triumph have now almost wholly vanished, they were for two centuries the dominant caste in most of the states of Asia." Having thus prepared the way for the larger enterprise, it only remained to find a plausible pretext for attacking the Kins. With or without a pretext Genghis would no doubt have made war, but even the ruthless Mongol sometimes showed a regard for appearances. Many years before the Kins had sent as envoy to the Mongul encampment Chonghei, a member of their ruling house, and his mission had been not only unsuccessful, but had led to a personal antipathy between the two men. In the course of time Chonghei succeeded Madacou as emperor of the Kins, and when a Kin messenger brought intelligence of this event to Genghis, the Mongol ruler turned toward the south, spat upon the ground, and said, "I thought that your sovereigns were of the race of the gods, but do you suppose that I am going to do homage to such an imbecile as that?" The affront rankled in the mind of Chonghei, and while Genghis was engaged with Hia, he sent troops to attack the Mongol outposts. Chonghei thus placed himself in the wrong, and gave Genghis justification for declaring that the Kins and not he began the war. The reputation of the Golden dynasty, although not as great as it once was, still stood sufficiently high to make the most adventurous of desert chiefs wary in attacking it. Genghis had already secured the co- operation of the ruler of Hia in his enterprise, and he next concluded an alliance with Yeliu Liuko, chief of the Khitans, who were again manifesting discontent with the Kins. Genghis finally circulated a proclamation among all the desert tribes, calling upon them to join him in his attack on the common enemy. This appeal was heartily and generally responded to, and it was at the head of an enormous force that Genghis set out in March, 1211, to effect the conquest of China. The Mongol army was led by Genghis in person, and under him his four sons and his most famous general, Chepe Noyan, held commands.