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  1. Grasses and clovers : effect of ripeness on yield and composition / [Thomas F. Hunt].
    By: Hunt, Thomas F.
    Publication info: Champaign, [Ill.] :University of Illinois Agricultural Experiment Station,1889.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Clover  Composition  Grasses  Harvesting time  
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  2. Picking maturity of apples /
    By: Haller, Mark H. - Magness, J. R.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1944.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Harvesting time  
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