fish and tortoises who lay their backs together and thus bridged the stream. Fantastic as this story seems, it may have an important bearing upon the question of the location of Pu-yŭ. Can we not see in this great shoal of fish a reference to the salmon which, at certain seasons, run up the Amur and its tributaries in such numbers that the water is literally crowded with them? If there is any weight to this argument the kingdom of Pu-yŭ, from which Chu-mong came, must have been, as some believe, along the Sungari or some other tributary of the Amur. Leaving his brothers baffled on the northern bank, Chu-mong fared southward till he reached Mo-tun-gok by the Po-sul River where he met three men, Chă-sa, clothed in grass cloth, Mu-gol in priestly garb and Muk-hŭ, in seaweed. They joined his retinue and proceeded with him to Chŭl-bon, the present town of Song-ch’ŭn, where he founded a kingdom. He gave it the name of Ko-gu-ryŭ, from Ko, his family name, and Ku-ryŭ, a mountain in his native Pu-yŭ. Some say the Ko is from the Chinese _Kao_, “high,” referring to his origin. This kingdom is also known by the name Chŭl-bon Pu-yu. It is said that Pu-ryu River flowed by the capital. These events occurred, if at all, in the year 37 B.C. This was all Chinese land, for it was a part of the great province of Tong-bu which had been erected by the Emperor So-je (Chao-ti) in 81 B.C. Only one authority mentions Chu-mong’s relations with Tong-bu. This says that when he erected his capital at Chŭl-bon he seized Tong-bu. China had probably held these provinces with a very light hand and the founding of a vigorous native monarchy would be likely to attract the semi-barbarous people of northern Korea. Besides, the young Ko-gu-ryŭ did not seize the whole territory at once but gradually absorbed it. It is not unlikely that China looked with complacency upon a native ruler who, while recognising her suzerainty, could at the same time hold in check the fierce denizens of the peninsula.