Introduction In the third edition of Professor Geikie’s “Great Ice Age,” published in 1894, he expresses the opinion, on page 699, that the materials of the loess in Asia “are largely of fluvio-glacial origin, and represent in great measure the flood loams swept down from the mountains and plateaus when they supported vast snow fields and glaciers;” and, in accordance with this theory, extensive areas in eastern Mongolia, in Transbaikalia, and in central Turkestan are marked on his glacial map of Asia as having been covered with ice during the Glacial period. My recent trip across Asia, in company with Frederick B. Wright, was largely directed by the desire to obtain more definite evidence on this point than could be found in any published reports. We accordingly went to Peking, and from there traveled on muleback 150 miles directly west to Kalgan, thus crossing a typical portion of the loess-covered . . .
- © 1902 Geological Society of America