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By: Crotch, George Robert,Edition:Publication info: Cambridge, [Printed for the author by C.J. Clay, at the University Press], 1863Volume:Series:Holding Institution: University of Toronto - Thomas Fisher Rare Book LibrarySubjects:BHL Collections:
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By: Crotch, George Robert, - Austin, E. P.Edition:Publication info: Salem, Naturalists' Agency, 1873Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections:
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By: Crotch, George Robert,Edition:Publication info: Salem, Mass, Naturalists' Agency, 1880Volume:Series:Holding Institution: University of California LibrariesSubjects:BHL Collections:
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By: Crotch, George Robert,Edition:Publication info: Salem, Mass, Naturalists' Agency, 1873Volume:Series:Holding Institution: Canadiana.orgSubjects:BHL Collections:
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By: Crotch, George Robert,Edition:Publication info: London, E.W. Janson, 1874Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections:
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By: Crotch, George Robert,Edition:Publication info: Cambridge, University Press, [1901]Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections:
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By: Crotch, George Robert,Type: ArticleIn: Transactions of the American Entomological SocietyVolume: 5Series:Issue:Date: 1874Page Range: 73--80Publication Info: Philadelphia, The Society, 1867-1877Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Transactions of the Entomological Society of LondonVolume: 18Series:Issue:Date: 1870Page Range: 41--52Publication Info: London, The Society,Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Cistula entomologicaVolume: 1Series:Issue: 6Date: 1873Page Range: 141--150Publication Info: London, E. W. Janson,Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Proceedings of the Academy of Natural Sciences of PhiladelphiaVolume: 25Series:Issue:Date: 1873Page Range: 19--83Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Cistula entomologicaVolume: 1Series:Issue: 5Date: 1872Page Range: 91--92Publication Info: London, E. W. Janson,Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 13Series:Issue: 81Date: 1873Page Range: 75--87Publication Info: Philadelphia, American Philosophical Society,Subjects:
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By: Crotch, George Robert,Type: ArticleIn: Cistula entomologicaVolume: 1Series:Issue:Date: 1872Page Range: 59--71Publication Info: London, E. W. Janson,Subjects: