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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Haselhoff, Emil, - Lindau, Gustav,
    Publication info: Leipzig Gebrüder Borntraeger 1903
    Holding Institution: University of Toronto - Robarts Library
    Subjects: Effect of gases on  Plant diseases  Plants  Smoke  
  2. By: Heck, Walter Webb, - Dunning, John A., - Philbeck, Robert B., - North Carolina Agricultural Experiment Station. - United States. Agricultural Research Service. Southern Region.
    Publication info: New Orleans, La, U.S. Dept. of Agriculture, Agricultural Research Service, Southern Region, 1978
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Air  Effect of air pollution on  Effect of gases on  Plants  Pollution  United States  
  3. By: DeMotte, Ruby Thorne.
    Publication info: 1902
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1902  Effect of gases on  Plants  Science  Theses  UIUC