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  1. The gape worm of fowls (Syngamus trachealis); the earthworm (Lumbricus terrestris), its intermediate host. Also, On the prevention of the disease in fowls called the gapes, which is caused by this parasite. By L.D. Walker ...
    By: Walker, H. D.
    Publication info: [Franklinville? N.Y.]c1897.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Diseases  Gapeworm  Poultry  
    View Book
  2. The gape worm of fowls (Syngamus trachealis); the earthworm (Lumbricus terrestris), its intermediate host. Also, On the prevention of the disease in fowls called the gapes, which is caused by this parasite. By L.D. Walker ...
    By: Walker, H. D.
    Publication info: [Franklinville? N.Y.]c1897.
    Contributed by: Library of Congress
    Subjects: Diseases  Gapeworm  Poultry  
    BHL Collections: Library of Congress
    View Book