More than twothirds of the land surface is covered with forests.
For the latest post-war statistics up to 1921 the proportions were respectively twothirds, one-sixth and one-sixth, owing primarily to the almost complete cessation of direct shipments from Europe to the Persian Gulf.
The Mexican mines first sent supplies to Europe in the 16th century, and during the period1781-1800yielded twothirds of the world's production.
Twothirds of the matter had been contributed by the editor, and the two stout volumes in which the numbers were collected contained the best political thought which had for long appeared in Germany.
The western provinces of Sze-ch`uen, Yun-nan and Kwei-chow yielded respectively 200,000, 30,000 and 15,000 piculs (of 1 333 Ib); Manchuria 15,000; Shen-si, Chih-li and Shan-tung io,000 each; and the other provinces from 5000 to 500 piculs each, the whole amount produced in China in 1906 being estimated at 330,000 piculs, of which the province of Sze-ch`uen produced nearly twothirds.