Chiang Mai province (Thailand), research group walking through forest

This set of images of Thailand was acquired by the American Geographical Society from Robert Larimore Pendleton (1890 -1957), soil scientist and Professor of Geography at John Hopkins University. The pictures were taken during Pendleton's research visits to Thailand from the mid 1930s to 1950s. Pendleton served as agricultural adviser to the United Nations FAO Mission to Siam [Thailand] in 1947-1948 and as the soil scientist at the US Mutual Security Agency's Special Technical and Economic Mission to Thailand in 1952-1953.Our carriers going north along the trail through the northern T'ai forest with tents and other kit. This is what is usually known as the monsoon forest. Chieng Mai province [Chiang Mai province], northern Thailand. November, 1938.Grayscal