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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Materials, methods, and administration of history study in the elementary schools of the United States. By Rolla Milton Tryon, A.M von Tryon, Rolla Milton, 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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Household manufactures in the United States, 1640-1860; a dissertation submitted to the faculty of the Graduate School of Arts and Literature in candidacy for the degree of doctor... von Tryon, Rolla Milton, 1875-1954

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Materials, methods, and the administration of history in the elementary schools of the U.S von Tryon, Rolla Milton, 1875

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Household manufactures in the United States, 1640-1860 von Tyron, Rolla Milton

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(518) Proposal to Conserve the Name Pteridaceae von Tryon, Rolla

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(1288) Proposal to Reject the Name Acrostichum ebeneum (Pteridaceae) von Tryon, Rolla

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SYSTEMATIC NOTES ON THE OLD WORLD FERN GENUS OLEANDRA von Tryon, Rolla

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The Biogeography of Species, with Special Reference to Ferns von Tryon, Rolla

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Systematic notes on Oleandra von Tryon, R

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(517) Proposal to Conserve Notholaena with the Type Pteris trichomanoides von Tryon, Rolla, Tryon, Alice

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A REVISION OF THE GENUS CYATHEA von Tryon, Rolla

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THE CLASSIFICATION OF THE CYATHEACEAE von Tryon, Rolla

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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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Unstable Amazonia? Biological Model of Diversification in the Tropics Ghillean T. Prance von Tryon, Rolla

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