GENETIC TYPES OF SOIL IN CHINA AND THEIR GEOGRAPHICAL DISTRIBUTION by I. P. Ko-la-hsi-mo-fu, Ma Jung-chih -- A REPORT ON AN INVESTIGATION OF SOIL EROSION IN CENTRAL KANSU by Chu Hsien-mo, Lei Wen-chin, Liu Ch'ao-shui, Shin Te-ming, Chao Ch'eng-chai, Ch'en Ch'i-wen -- APPENDIX. A PRELIMINARY OBSERVATION AND MEASUREMENT OF THE SOIL TEMPERATURE IN THE SUMMER, IN CENTRAL KANSU by Meteorology Group ana Soil Group of the Soil and Water [Illegible] Investigation Group of the Middle Reaches of the Yellow River, Chinese Academy of Sciences -- SOIL EROSION OF PAI-SHE AREA OF KUANGSI PROVINCE AND ITS CONTROL by Chang Chun-min, Wei Ch'i-fan -- A PRELIMINARY STUDY OF THE BASIC CHARACTERISTICS OF THE CINNAMON SOIL TYPE CULTIVATED SOILS AND ANCIENT SOILS IN THE NORTHWEST REGION by Wang Chen-chuan, Feng Hsiu-mei.
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