As the Gorge District of the Yangtze is one of the few areas in China that can deservedly boast before the world its scenic grandeur as well as beauty, it has been long felt that a systematic account of its geological conditions would open another aspect of interest to the scientific travellers. There are already on the record the observations of Pumpelly, Richthofen, Abendanon, Willis and Blackwelder, Noda and others; but the results of their work, important as they are in certain respects, seem to ind...