by Michigan Academy of Science, Arts, and Letters

1924

by Michigan. Legislature. House of Representatives

1919

by Michigan. Dept. of Health

1899

by University of Michigan. Committee on Vocational Counsel and Placement

1928

by Michigan. Legislature. Senate

1919

by University of Michigan

1928

by Michigan University

1928

by Michigan

1919

by Michigan. Department of Attorney General

1930

by Michigan

1919

by Michigan. Department of Health

1923

by Michigan. University. Research Institute, University of Michigan. Office of Research Administration

1929