Reasons are given for the introduction of two new stage-names in the series of steps by which the present land-surface has evolved. The term Paote Stage is proposed for the long-recognized phase of aggradation (between the Tanghsien and Fenho erosional stages) during which the Red Clays and high gravels accumulated. The importance of the Chingshui Stage has not previously been appreciated, but it is now clear that an epoch of erosion separated the Sanmen and Malan (loess) Stages of accumulation. When Dr. Andersson first applied the term Fenho Stage to the dissection seen in the Chaitang Basin, Dr. V. K. Ting had not yet discovered the Sanmen beds. With the recognition that these beds were not an isolated deposit but represented a distinct change of conditions which left its mark widespread over Northern China, it became necessary to establish the exact relationship between the Sanmen and Fenho in Willis's type area.