Flowering plants and ferns of Arizona - Kearney, Thomas H. (Thomas Henry), 1874 -1956 (U.S. Dept. of Agriculture, 1942)

The flowering plants, grasses, sedges, and ferns of Great Britain and their allies the club mosses, pepperworts, and horsetails - Pratt, Anne, 1806 -1893 (Frederick Warne and Co, 1873)

The flowering plants of Africa; an analytical key to the genera of African phanerogams - Thonner, Franz, 1863 - (Dulau & Co., Ltd, 1915)

Flowering plants of the Riviera : a sescriptive account of 1800 of the more interesting species - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Longmans, Green, 1914)

Flowering plants, trees, shrubs, seeds, landscaping : fall 1931 spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.A. Hyde Co, 1931)

Flowering size hardy plants, field grown - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, 1934)

Flowers, fruits and leaves - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1888)

Flowers, fruits, and leaves - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1888)

Flowers, fruits and leaves - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1886)

Flowers of field, hill, and swamp - Creevey, Caroline A. Stickney, 1843 -1920 (Harper, 1897)

Flowers of the Engadine. Drawn from nature - Heathcote, Evelyn Dawsonne. (Printed for the Author by Warren and Son, 1891)

Flowers of the field - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1860)

Flowers of the field - Johns, C. A. (Charles Alexander), 1811 -1874 (G. Routledge, 1908)

Flowers of the field - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1911)

Flowers of the field - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1853)

Flowers of the field - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1899)

Flowers of the field. Rev. throughout and edited by Clarence Elliott. With an appendix including the Pipe-wort tribe (Eriocauleae) the Sedge tribe (Cyperaceae) and the Grass tribe (Gramineae) - Johns, C. A. (Charles Alexander), 1811 -1874 (G. Routledge)

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Forest distribution in the northern Rocky Mountains - Kirkwood, J. E. (Joseph Edward), 1872 -1928 (State University, 1922)

Forest habitat types of central Idaho - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S.D.A., Forest Service Intermountain Forest and Range Experiment Station, 1981)

Forest life in Acadie : sketches of sport and natural history in the lower provinces of the Canadian Dominion - Hardy, Campbell, 1831 -1919 (Chapman & Hall, 1869)

Forest life in Acadie : sketches of sport and natural history in the lower provinces of the Canadian dominion - Hardy, Campbell, 1831 -1919 (D. Appleton & Co, 1869)

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Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1882)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1886)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1887)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1893)

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Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1906)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1907)

Forhandlinger i Videnskabs-selskabet i Christiania - Norske videnskaps-akademi i Oslo. ([Trykt hos Brøgger & Christie, 1908)

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Die Forstkäfer, oder, vollständige Naturgeschichte der vorzüglichsten, den Gebirgsforsten schädlichen Insekten, hauptsächlich der Borkenkäfer, mit Angabe der Mittel zu ihrer Vertilgung - Thiersch, Ernst (Cotta'schen, 1830)

Forstliche Botanik - Schwarz, Frank, 1857 -1928 (P. Parey, 1892)

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Förteckning öfver Skandinaviska halföns, Finlands och Danmarks = Enumeratio plantarum Sueciae, Norvegiae, Fenniae et Daniae : fanerogamer och kärlkryptogamer - Hamberg, Knut Herman Rudolf, 1873 -1920 (I. Marcus, 1897)

Fortegnelse over Danmarks microlepidoptera - Larsen, C. S. (Entomologisk forening, 1916)

Die Fortschritte der Botanik (Mayer, 1879)

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Fortsetzung des Allgemeinen teutschen Garten-Magazins : oder gemeinnützige Beiträge für alle Theile des praktischen Gartenwesens - Industrie-Comptoir (Weimar, Thuringia, Germany), (Im Verlage des Landes-Industrie-Comptoirs, 1822)

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Fourteen weeks in botany : being an illustrated flora - Wood, Alphonso, 1810 -1881 (A.S. Barnes & Company, 1879)

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Francis Walker's aphids - Walker, Francis, 1809 -1874 (Trustees of the British Museum, 1961)

Die Franklin-Expedition und ihr Ausgang Entdeckung der nordwestlichen Durchfahrt durch Mac Clure [sic], sowie Auffindung der Ueberreste von Franklin's Expedition durch Kapitän Sir M'Clintock, R.N. L - Wagner, Hermann, 1840 -1929 (O. Spamer, 1861)

Freaks and marvels of plant life; or, Curiosities of vegetation - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Society for Promoting Christian Knowledge, 1881)

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Führer zu den wissenschaftlichen Exkursionen des II. Internationalen Botanischen Kongresses, Wien, 1905 (Selbstverlage des Organisationskomitees, 1905)

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The Fungi which cause plant disease - Stevens, Frank Lincoln, 1871 -1934 (The Macmillan Company, 1913)

The fungus flora of Yorkshire. A complete account of the known fungi of the county - Massee, George, 1850 -1917 (A. Brown, 1905)

The fur seals and fur-seal islands of the North Pacific Ocean - Jordan, David Starr, 1851 -1931 (Govt. Print. Off, 1899)

The fur seals and fur-seal islands of the North Pacific ocean - Jordan, David Starr, 1851 -1931 (Govt. Print. Off, 1899)

The fur seals and fur-seal islands of the North Pacific ocean - Jordan, David Starr, 1851 -1931 (Govt. Print. Off, 1898)

Furesøstudier en bathymetrisk botanisk zoologisk undersøgelse af Mølleaaens Søer - Wesenberg-Lund, C. (Carl), 1867 -1955 (A.F. Høst & søn, 1917)

Gaelic names of plants (Scottish and Irish) Collected and arranged in scientific order, with notes on their etymology, their uses, plant superstitions, etc., among the Celts, with copious Gaelic, English and scientific indices - Cameron, John, of Sunderland. (Blackwood, 1883)

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The Garden: an illustrated weekly journal of gardening in all its branches (1872)