by University of the State of New York

1884

by University of New Hampshire. Library

1927

by University of New Hampshire. Agricultural Extension Service

1912

by Yale University

1915

by Yale University

1911

by University of California, Berkeley. Library

1913

by University of California, Berkeley. Library

1910

by University of Maine at Orono. Maine Agricultural Experiment Station (U.S.)

1929

by University of Pennsylvania. School of Medicine

1902

by University of Pennsylvania. School of Medicine

1902

by University of the State of New York

1895

by Yale University. School of Forestry and Environmental Studies

1930