SOME OBSERVATIONS ON THE EROSION HISTORY OF 
THE YANGTZE RIVER, CHINA. 
C. L. POSTER. 
As one crosses the China Sea from Japan to Shanghai he notes 
little, if any, difference in its character from that of the open 
sea, until within about 100 miles of the coast. Then the blue- 
green hue gives way to the muddy, yellow color of silt-laden 
Fig. 2. A typical gorge view. 
water — a tangible evidence of the enormous load of sediment un- 
ceasingly born by the Yangtze to the sea. This is but the continu- 
ation of a process initiated ages ago by which the continent has 
crept eastward, slowly but irresistibly compelling the sea to 
retreat. 
