by Georgetown University

1893

by Ohio. State University, Columbus. Bureau of Educational Research and Service

1924

by George Washington University

1884

by Harvard University

1913

by Harvard University

1913

by Ohio State University. Center for Vocational and Technical Education

1972

by Iowa State University

1917

by American Association of University Professors

1915

by Georgetown University

1873

by American Association of University Professors

1917

by University of Chicago

1902

by George Washington University. Dept. of Arts and Sciences

1920