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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Powers, W. L. (Wilbur Louis),
    Publication info: Berkeley, Calif, University of California Press, 1927
    Holding Institution: University of California, Davis Libraries
    Subjects: Effect of sulfates on  Plants  Soils  Sulfur  
  2. By: Ohmann, L. F. - North Central Forest Experiment Station (Saint Paul, Minn.)
    Publication info: St. Paul, Minn, U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1994
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Acid deposition  Effect of sulfates on  Environmental aspects  Forest surveys  Forests and forestry  Lake states  Plants