Household manufactures in the United States, 1640-1860 : a study in industrial history / by Rolla Milton Tryon von Tryon, Rolla M. 1875-1954

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The American people and nation / by Rolla M. Tryon and Charles R. Lingley von Tryon, Rolla M. 1875-1954

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The teaching of history in junior and senior high schools, by Rolla Milton Tryon von Tryon, Rolla M. 1875-1954

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The Ferns of Brazilian Amazonia von Tryon, Rolla M., Conant, David S.

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Pteridophyta of Peru, Part IV, 17. Dryopteridaceae von Lellinger, David B.

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Pteridophyta: The Morphology of Pteridophytes . The structure of ferns and allied plants. K. R. Sporne. Hutchinson, London; Hillary House, New York, 1962. 192 pp. Illus. $2.50 von Tryon, Rolla M.

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Fern Grower's Manual, Revised and Expanded Edition von Tryon, Rolla M.

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A REVISION OF THE GENUS CYATHEA von Tryon, Rolla

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A Sketch of the History of Fern Classification von Tryon, Rolla M.

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THE CLASSIFICATION OF THE CYATHEACEAE von Tryon, Rolla

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A New Erect Species of the Selaginella rupestris Group von Tryon, Rolla M.

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Charles Alfred Weatherby: Teacher and Counselor von Tryon, Rolla M.

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Spore Morphology in the Cyatheaceae. II. The Genera Lophosoria, Metaxya, Sphaeropteris, Alsophila, and Nephelea von Gastony, Gerald J., Tryon, Rolla M.

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Some Woodsias from the North Shore of Lake Superior von Tryon, Rolla M.

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THE FERNS OF PERU POLYPODIACEAE (DENNSTAEDTIEAE TO OLEANDREAE) von Tryon, Rolla

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TAXONOMIC FERN NOTES. II. PITYROGRAMMA (INCLUDING TRISMERIA) AND ANOGRAMMA von Tryon, Rolla

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TAXONOMIC FERN NOTES. III von Tryon, Rolla

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A REVIEW OF THE GENUS DENNSTAEDTIA IN AMERICA von Tryon, Rolla

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History in the Secondary Schools of the United States, One Hundred Years of von Tryon, Rolla M

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Ferns and Allied Plants. with Special Reference to Tropical America von Smith, Alan R.

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