Isabella B. Bishop, The Yangtze Valley and Beyond., Vol. I, pp. 8, 10, 97. London and New York, 1900.
Cyrus Thomas, Mound Explorations, pp. 626, 650-653. Twelfth Annual Report Bureau of Ethnology, Washington, 1894.
Strabo, Book V, chap. I, 4.
W. Deecke, Italy, pp. 88-89. London, 1904.
John Barrows, Travels in China, p. 349. Philadelphia, 1805.
Meredith Townsend, Asia and Europe, pp. 278-284. New York, 1904.
Isabella B. Bishop, The Yangtze Valley and Beyond, Vol. II, pp. 72-73 76-81. New York and London, 1900. For the future of land reclamation, see N.S. Shaler, Man and the Earth, chap. V. New York, 1906.
Strabo, Book X, chap. II, 19.
John W. Draper, Intellectual Development of Europe, Vol. I, pp. 84-86. New York, 1876.
Winwood Reade, The Martyrdom of Man, pp. 9-17. Eighth Edition, New York.