Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Correll, Donovan Stewart, - Correll, Helen B.
    Publication info: [Washington], Environmental Protection Agency; [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972
    Holding Institution: MBLWHOI Library
    BHL Collections: Blog Features
  1. By: Correll, Helen B. - Correll, Donovan Stewart, - Hires, Clara S
    Type: Article
    In: American fern journal
    Volume: 56
    Date: 1966
    Page Range: 82--83
    Publication Info: [Washington, etc.] American Fern Society