[167] The Chinese, Vol. II., pp. 333-343.
[168] Journal of the Geolog. Soc., London, for 1871, p. 379.
[169] Im fernen Osten, p. 462.
[170] China: Ergebnisse eigener Reisen. Band I., S. 74. Berlin, 1877.
[171] Compare Kingsmill, in the Quar. Journal of the Geol. Soc. of London, 1868, pp. 119 ff., and in the North China Herald, Vol. IX., 85, 86.
[172] Yule’s Marco Polo, Vol. I., p. 395.
[173] Across America and Asia, pp. 291 ff.
[174] Five Months on the Yang-tsze, p. 265. Annales de la Foi, Tome IX., p. 457.
[175] N. C. Br. R. A. Soc. Journal, New Series, No. III., pp. 94-106, and No. IV., pp. 243 ff. Notes by Mr. Hollingworth of a Visit to the Coal Mines in the Neighborhood of Loh-Ping. Blue Book, China, No. 2, 1870, p. 11. Notes and Queries on China and Japan, Vol. II., pp. 74-76. North China Herald, passim. Richthofen’s Letters, and in Ocean Highways, Nov., 1873. Chinese Repository, Vol. XIX., pp. 385 ff.
[176] Compare Rémusat, Histoire de Khotan, pp. 163 ff., where there is an extended list of Chinese precious stones drawn from native sources.