File 1: Mounted, captioned, black and white photographs of the Samburu region, Mount Marsabit and the country towards southern Ethiopia, 1897. Five prints. File 2: Black and white photographs, some captioned, showing soil erosion, damming and land-usage in Arizona, California, Georgia, Kansas, New Mexico and Washington, USA, 1934-1936. Twenty-two prints. File 3: Black and white…