In the remotest times of which the Chinese have any record, the Hwang-Ho discharged its waters into the Gulf of Chih-li, by two branches, the most northerly of which appears to have followed the present course of the Pei-ho below Tien-tsing. In the time of the Shang Dynasty (ending B.C. 1078) a branch more southerly than either of the above flowed towards T’si-ning, and combined with the _T’si_ River, which flowed by T’si-nan fu, the same in fact that was till recently called the Ta-t’sing. In the time of Confucius we first hear of a branch being thrown off south-east towards the Hwai, flowing north of Hwai-ngan, in fact towards the embouchure which our maps still display as that of the Hwang-Ho. But, about the 3rd and 4th centuries of our era, the river discharged exclusively by the T’si; and up to the Mongol age, or nearly so, the mass of the waters of this great river continued to flow into the Gulf of Chih-li. They then changed their course bodily towards the Hwai, and followed that general direction to the sea; this they had adopted before the time of our traveller, and they retained it till a very recent period. The mass of Shan-tung thus forms a mountainous island rising out of the vast alluvium of the Hwang-Ho, whose discharge into the sea has alternated between the north and the south of that mountainous tract. (_See Map opposite_.) During the reign of the last Mongol emperor, a project was adopted for restoring the Hwang-Ho to its former channel, discharging into the Gulf of Chih-li; and discontents connected with this scheme promoted the movement for the expulsion of the dynasty (1368). A river whose regimen was liable to such vast changes was necessarily a constant source of danger, insomuch that the Emperor Kia-K’ing in his will speaks of it as having been “from the remotest ages China’s sorrow.” Some idea of the enormous works maintained for the control of the river may be obtained from the following description of their character on the north bank, some distance to the west of Kai-fung fu: “In a village, apparently bounded by an earthen wall as large as that of the Tartar city of Peking, was reached the first of the outworks erected to resist the Hwang-Ho, and on arriving at the top that river and the gigantic earthworks rendered necessary by its outbreaks burst on the view. On a level with the spot on which I was standing stretched a series of embankments, each one about 70 feet high, and of breadth sufficient for four railway trucks to run abreast on them. The mode of their arrangement was on this wise: one long bank ran parallel to the direction of the stream; half a mile distant from it ran a similar one; these two embankments were then connected by another series exactly similar in size, height, and breadth, and running at right angles to them right down to the edge of the water.”