by Johns Hopkins University. Peabody Institute. Library

1889

by University of Arizona. School of Mines

1893

by University of Pennsylvania. Botanical Laboratory

1919

by University of Rochester

1911

by Oklahoma A & M College, Oklahoma State University

1930

by Washington State University. Engineering Experiment Station

1928

by University of Pennsylvania. Botanical Laboratory

1929

by University of the State of New York

1900

by University of the State of New York. College Department

1900

by University of California, Berkeley

1930

by University of Texas

1930

by University of California (1868-1952)

1903