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By: Seton, Ernest Thompson, - Hoffmann, Ralph,Edition:Publication info: Boston, Ginn & Company, 1901Volume:Series:Holding Institution: Multiple institutionsSubjects:BHL Collections:
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By: Stickney, J. H. (Jenny H.), - Hoffmann, Ralph,Edition:Publication info: Boston, U.S.A, Ginn, 1900Volume:Series:Holding Institution: University of Toronto - Thomas Fisher Rare Book LibrarySubjects:BHL Collections:
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By: Stickney, J. H. (Jenny H.), - Hoffmann, Ralph, - Seton, Ernest Thompson,Edition:Publication info: Boston, Ginn, c1898Volume:Series:Holding Institution: American Museum of Natural History LibrarySubjects:BHL Collections:
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By: Hoffmann, Ralph,Edition:Publication info: Boston, 1900Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects:BHL Collections:
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By: Deane, Walter, - Ayres, Helen F., - Bishop, James N. (James Nathaniel), - Bissell, Charles Humphrey, - Brainerd, Ezra, - Britton, Nathaniel Lord, - Chesley, Charles Henry, - Churchill, Joseph Richmond, - Clark, Hubert Lyman, - Clark, Hubert Lyman, - Collins, Frank S. (Frank Shipley), - Coulter, John Merle, - Eames, Edwin Hubert, - Eaton, A. A. (Alvah Augustus), - Eggleston, W. W. (Willard Webster), - Fernald, Merritt Lyndon, - Flynn, Nellie F., - Graves, Charles Burr, - Griffin, Delia Isabel, - Grout, A. J. (Abel Joel), - Grout, A. J. (Abel Joel), - Harger, Edgar Burton, - Hervey, E. W. (Eliphalet Williams), - Hoffmann, Ralph, - Jesup, Henry G. (Henry Griswold), - Jones, L. R. (Lewis Ralph), - Pringle, Cyrus G. (Cyrus Guernsey), - Purdie, Henry Augustus, - Robinson, Benjamin Lincoln, - Rose, J. N. (Joseph Nelson), - Sargent, Herbert E., - Stevens, Alice F., - Williams, Emile Francis,Edition:Publication info:Volume: Senders A-G, 1897-1904Series:Holding Institution: Harvard University Botany LibrariesSubjects:BHL Collections: Archives from the Boston Metropolitan Park Flora
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By: Hoffmann, Ralph,Edition:Publication info: Boston, 1922Volume:Series:Holding Institution: Multiple institutionsSubjects:BHL Collections:
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By: Hoffmann, Ralph, - Fuertes, Louis Agassiz,Edition:Publication info: Boston Houghton, Mifflin and Company 1904Volume:Series:Holding Institution: Multiple institutionsSubjects:BHL Collections:
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By: Hoffmann, Ralph,Edition:Publication info: Stockbridge, 1914Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects:BHL Collections:
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By: Hoffmann, Ralph,Edition:Publication info:Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects:BHL Collections:
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By: Hoffmann, Ralph, - Knobel, Edward, - Massachusetts Audubon Society.Edition:Publication info: Boston, Published by Massachusetts Audubon Society, 1899Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects:BHL Collections:
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By: Hoffmann, Ralph, - Brewster, William,Edition:Publication info:Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects:BHL Collections: William Brewster Papers
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By: Hoffmann, Ralph,Type: ArticleIn: RhodoraVolume: 19Series:Issue:Date: 1917Page Range: 37--37Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: RhodoraVolume: 19Series:Issue:Date: 1917Page Range: 60--60Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Hoffmann, Ralph,Type: CorrespondenceIn: Correspondence relating to preliminary lists of New England plants, 1897-1904 (inclusive)Volume:Series:Issue:Date: 1904-04-01Page Range:Publication Info:Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 21Series:Issue:Date: 1904Page Range: 393--394Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 16Series:Issue:Date: 1899Page Range: 196--196Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 36Series:Issue:Date: 1919Page Range: 106--107Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 20Series:Issue:Date: 1903Page Range: 211--212Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: RhodoraVolume: 6Series:Issue:Date: 1904Page Range: 202--206Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 12Series:Issue:Date: 1895Page Range: 188--189Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 33Series:Issue:Date: 1916Page Range: 196--196Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 37Series:Issue:Date: 1920Page Range: 453--454Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 13Series:Issue:Date: 1896Page Range: 297--312Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: RhodoraVolume: 1Series:Issue:Date: 1899Page Range: 229--230Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Brewster, William, - Hoffmann, Ralph,Type: ArticleIn: The AukVolume: 19Series:Issue:Date: 1902Page Range: 420--420Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects:
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By: Hoffmann, Ralph,Type: ArticleIn: RhodoraVolume: 4Series:Issue:Date: 1902Page Range: 188--188Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects: