by Indiana University

1925

by Indiana University

1925

by Hugh Evander Willis, Indiana University

1926

by University of California, Berkeley

1903

by University of California, Berkeley

1928

by Princeton University

1924

by University of Toronto. Faculty of Applied Science and Engineering. Engineering Society

1897

by California. University, University of California, Berkeley

1929

by Cambridge University Library

1905

by Cambridge University Library

1920

by McGill University. Department of Economics and Political Science

1930

by Yale University. Graduate School

1916