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  1. The available energy of red clover hay.
    By: Armsby, Henry Prentiss, - Fries, Jöns August,
    Publication info: Washington,Govt. print. off.,1908.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  2. The available energy of timothy hay,
    By: Armsby, Henry Prentiss, - Fries, Jöns August, - Society for the promotion of agricultural science.
    Publication info: [Syracuse?]1902.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  3. Energy values of red clover hay and maize meal. Investigations with a respiration calorimeter, in co-operation with the Pennsylvania state college agricultural experiment station.
    By: Armsby, Henry Prentiss, - Fries, Jöns August, - Pennsylvania.
    Publication info: Washington,Govt. print. off.,1905.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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