by U.S. Secretary of Agriculture

1912

by U.S. Government

1916

by National Association of Retail Druggists (U.S.)

1927

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

1929

by Association of Collegiate Alumnae (U.S.)

1916

by National Research Council (U.S.)

1929

by National Research Council (U.S.). Research Information Service

1929

by National Research Council (U.S.)

1929

by National Research Council (U.S.). Committee on Animal Nutrition, Harold Hanson Mitchell

1929

by U. S. Department of Agriculture. Division of Statistics

1905

by Russian Information Bureau in the U.S.

1920

by U.S. . AGRICULTURE, DEPT. OF

1919