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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Johnson, Samuel W. (Samuel William),
    Edition: Rev. and enl. ed.
    Publication info: New York, O. Judd, 1894
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1830-1909  Agricultural chemistry  Analysis  Growth (Plants)  Johnson, Samuel William,  Plant physiology  Plants  Portraits  
  2. By: Day, Peter R., - Johnson, Samuel W. (Samuel William),
    Publication info: New Haven, Connecticut Agricultural Experiment Station, 1969
    Holding Institution: University of Connecticut Libraries
    Subjects: (Samuel William),  1830-1909  Agricultural chemistry  Field crops  Growth (Plants)  Johnson, Samuel W  physiology