50 GEOLOGICAL RESEARCHES IN 



according to the length of the li. Hienshuikau (on the Pei Ho, hi long. 117° 32' E.) 

 is said to have been on the sea-shore in A. D. 500/ and is at present about eighteen 

 miles distant, an increase of about 81 feet per annum. 



Along the southern shore of the gulf of Pechele the yearly increase N. E. of Shuk- 

 wang since B. C. 220, seems to have been not more than 30 feet. 



The sea-shore, according to local tradition, was near the present location of 

 Tientsin (fu) during the Han dynasty. 



It is also recorded that under the reign of the Han, the Hwang Ho entered the 

 sea at Changwu, near the present Tsinghai.- 



* Fangyuchiyau ; Chihli. " Ibid. 



