. 
— 
R. Pumpelly on the Detta~plain of the Yellow River. 921 
In the Yukung, a chapter of the Shuking classic of Confu- 
cius, it is said that the course of the Hwang Ho was regulated 
an 
dykes, and had begun to cultivate the extensive marshes of the 
ap No. 1 of the series, on plate 4, represents the course of 
the Hwang Ho as it existed, in the main, frem the time of Yu 
down to 602 B. ©. f ‘ 
ap No. 2 represents the course resulting from the first 
great change, that of the fifth year of the reign of Ting Wang 
(Chow dynasty), 602 B.C. . 
ap No. 3 serves to illustrate a passage in the writings of 
to the southwest, happened, according to Sse Ma Tsien, toward 
ra end of the Chow dynasty, during the third century before 
rist. = 
. At this 
Taming (fu) and the sea, which are also given. Previous to 
this, under Wentih, about 160 B. C., there was a breach formed 
at Yentsin near Kaifung. 
1034, when a break occurred at Hunglung, and another, four- 
teen years later, A. D. 1048, at Changwu, and the river of the _ 
Han and the Tang was entirely destroyed. The map covers & 
_ period of 977 years, 
