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  1. A catalogue of the Cretaceous and Tertiary plants of North America by Frank Hall Knowlton.
    By: Knowlton, Frank Hall, - United States.
    Publication info: Washington :G.P.O.,1898.
    Contributed by: Canadiana.org (archive.org)
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  2. Material for a bibliography of North American mammals prepared by Theodore Gill and Elliott Coues.
    By: Gill, Theodore, - Allen, J. A. - Coues, Elliott, - United States.
    Publication info: Washington :G.P.O.,1877.
    Contributed by: Canadiana.org (archive.org)
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  3. On the Cambrian faunas of North America preliminary studies / by Charles Doolittle Walcott.
    By: Walcott, Charles D. - United States.
    Publication info: Washington :G.P.O.,1884.
    Contributed by: Canadiana.org (archive.org)
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  4. Second contribution to the studies on the Cambrian faunas of North America by Charles Doolittle Walcott.
    By: Walcott, Charles D. - United States.
    Publication info: Washington :G.P.O.,1886.
    Contributed by: Canadiana.org (archive.org)
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