Series I consists of maps, pamphlets,photographs, radio programs on various agricultural subjects, handbooks, notes,and other correspondence from Australia, Tasmania, New Zealand, and South Wales. Series II contains photographs of agricultural events, agricultural booklets, and workshop reports from several European countries that were part of the recovery program included in the Marshall Plan after World War II. Series III contains books, pamphlets and photographs of agriculture in Japan. Series IV consists of pamphlets relating to agriculture, a map, and two sets of slides about farming in Taiwan, Republic of China. Series V contains final reports of Kadderly's Costa Rica assignment, field trip reports from each country he visited, correspondence, workshop materials, photographs, seminar information on thirteen South American countries, information on Brazilian history and pamphlets published by the U.S. Department of Agriculture, both in Spanish and English. Some of the pamphlets were published in Costa Rica. Of special interest are the personal comments Kadderly noted on some of the reports.