Rolla M. Tryon Jr.

Botanist Rolla Milton Tryon Jr. Rolla Milton Tryon Jr. (August 26, 1916 – August 20, 2001) was an American botanist who specialized in the systematics and evolution of ferns and other spore-dispersed plants (pteridology). His particular focus and interest lay in two areas, historical biogeography of ferns and the taxonomy of tropical American ferns. Provided by Wikipedia
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  1. 1
    The social sciences as school subjects,

    The social sciences as school subjects, by Tryon, Rolla Milton, 1875-

    Published 1935
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  2. 2
    The American people and nation,

    The American people and nation, by Tryon, Rolla Milton, 1875-

    Published 1927
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  3. 3
    Household manufactures in the United States, 1640-1860.

    Household manufactures in the United States, 1640-1860. by Tryon, Rolla Milton, 1875-

    Published 1966
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