by La Salle Extension University

1924

by Stanford University. Food Research Institute

1926

by University of Oxford

1915

by Montana State University (Bozeman, Mont.). Cooperative Extension Service

1917

by La Salle Extension University

1930

by Pennsylvania State University. Agricultural Experiment Station

1930

by Pennsylvania State University. Agricultural Experiment Station

1923

by Queen's University (Kingston, Ont.). Department of History

1918

by University of Sydney

1924

by University of California, Berkeley

1928

by McGill University. Library Committee

1922

by University of Illinois at Urbana-Champaign. Agricultural Experiment Station

1914