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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Winchell, N. H. - American Association for the Advancement of Science. Section on Geology and Geography.
    Publication info: [Philadelphia?], [publisher not identified], [1884?]
    Holding Institution: National Library of Medicine
    Subjects: Geological Phenomena  Midwestern United States  
  2. By: United States. Department of Agriculture.
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, 1986
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Adaptation  agronomic traits  Cover crops  establishment  Herbs  Lathyrus  Lathyrus latifolius  Midwestern United States  Northeastern United States