This collection contains 91 volumes from 72 titles, containing 32625 pages.
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By: Muir, John, - Parsons, Marion Randall.Edition:Publication info: Boston, Houghton Mifflin co, 1915Volume:Series:Holding Institution: MBLWHOI LibrarySubjects:BHL Collections: Earth Optimism
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By: Muir, John, - Badè, William Frederic, - Badè, William Frederic, - Watson, Amelia M. (Amelia Montague),Edition: Large-paper ed.Publication info: Boston, Houghton Mifflin company, 1916Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections: Earth Optimism
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By: Comstock, Anna Botsford,Edition:Publication info: Ithaca, N.Y, The Comstock Publishing Company, 1916Volume:Series:Holding Institution: University of California LibrariesSubjects:BHL Collections: Early Women in Science | Earth Optimism | Women in Natural History
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By: Thoreau, Henry David, - Gleason, Herbert Wendell,Edition:Publication info: Boston, Houghton Mifflin company, 1917Volume:Series:Holding Institution: Cornell University LibrarySubjects:BHL Collections: Earth Optimism