Description: Papers of Edward H. Tyner Papers (1907- ), professor agronomy (1948-73), including correspondence (1960-61), course materials (1952-53), manuscript & publications (1962), soil testing & fertility short courses for international students (1961-63), corn variety studies (1946-56), soil fertilizer studies (1953), nitrogen fertilizer paper (1954), corn nutrient paper (1953-57) and South Farm rotation studies (1958-59).