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Proceedings of the Literary and Philosophical Society of Manchester - Literary; Philosophical Society of Manchester. (The Society, 1868)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1878)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1944)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1963)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1969)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1987)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1875)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1883)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1888)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1901)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1902)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1888)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1905)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1909)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1917)

Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1917)

Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1919)

Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1921)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1884)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1888)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1891)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1892)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1893)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1895)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1900)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1901)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1902)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1900)

Proceedings of the Royal Society of Victoria - Royal Society of Victoria (Melbourne, Vic.) (The Society, 1913)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1958)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1964)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 2004)

Proceedings of the Seventeenth annual convention of the Association of American Agricultural Colleges and Experiment Stations held at Washington, D.C., November 17-19, 1903 - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, Office of Experiment Stations, 1904)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1901)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1916)

Proceedings of the Washington Academy of Sciences - Washington Academy of Sciences (Washington, D.C.) (Washington Academy of Sciences, 1906)

Proceedings of the Washington Academy of Sciences - Washington Academy of Sciences (Washington, D.C.) (Washington Academy of Sciences, 1907)

Proceedings of the Yorkshire Geological and Polytechnic Society - Yorkshire Geological; Polytechnic Society. (Yorkshire Geological and Polytechnic Society, 1888)

Proceedings of the Yorkshire Geological and Polytechnic Society - Yorkshire Geological; Polytechnic Society. (Yorkshire Geological and Polytechnic Society, 1895)

Proceedings of the Yorkshire Geological and Polytechnic Society - Yorkshire Geological; Polytechnic Society. (Yorkshire Geological and Polytechnic Society, 1900)

Procès-verbaux - Société Linnéenne de Bordeaux. (1895)

Procès-verbaux - Société Linnéenne de Bordeaux. (1960)

Procès-verbaux - Société Linnéenne de Bordeaux. (1959)

Prodrome d'histoire naturelle du département du Var. 1ère ptie (Imprimerie de P. Garcin, 1853)

Prodrome d'une histoire des végétaux fossiles - Brongniart, Adolphe, 1801 -1876 (F. G. Levrault, 1828)

Prodrome de la flore Belge - De Wildeman, Emile 1866 -1947 (Alfred Castaigne, 1899)

Prodrome de la flore Belge - De Wildeman, Emile 1866 -1947 (Alfred Castaigne, 1898)

Prodrome de la flore belge - Wildeman, E. de (Emile), 1866 -1947 (A. Castaigne, 1898)

Prodrome de la flore corse : comprenant les résultats botaniques de six voyages exécutés en Corse sous les auspices de M. Emile Burnat - Briquet, John, 1870 -1931 (Georg, 1910)

Prodromus florae Batavae - Dozy, F. (Frans), 1807 -1856 (Sumptibus Societatis, apud J. Hazenberg, 1850)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae hispanicae, seu synopsis methodica omnium plantarum in Hispania - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1880)

Prof. dr. Thom©♭'s Flora von Deutschland, ©sterreich und der Schweiz in wort und bild f©ơr schule und haus - Thomé, Otto W. (Otto Wilhelm), 1840 -1925 (F. E. K©œhler, 1886)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1886)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1903)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1889)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1905)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1910)

Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany - Association internationale des botanistes. (G. Fischer, 1907)

Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany - Association internationale des botanistes. (G. Fischer, 1914)

Pteridologia : a publication of the American Fern Society - American Fern Society. (The Society, 1989)

Pteridologia : a publication of the American Fern Society - American Fern Society. (The Society, 2007)

Pteridologist - British Pteridological Society. (The Society, 1984)

Pteridologist - British Pteridological Society. (The Society, 1987)

Pteridologist - British Pteridological Society. (The Society, 1988)

Pteridologist - British Pteridological Society. (The Society, 1990)

Pteridologist - British Pteridological Society. (The Society, 1999)

Pteridologist - British Pteridological Society. (The Society, 2010)

Pteridologist - British Pteridological Society. (The Society, 2011)

Pteridologist - British Pteridological Society. (The Society, 2012)

Pteridologist - British Pteridological Society. (The Society, 2013)

Pteridologist - British Pteridological Society. (The Society, 2014)

Pteridologist - British Pteridological Society. (The Society, 2015)

Pteridologist - British Pteridological Society. (The Society, 2018)

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Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1863)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1865)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1879)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1882)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1885)

The Quarterly journal of science (J. Churchill and Sons, etc, 1865)

The Queensland flora - Bailey, Frederick Manson 1827 -1915 (Printed by H. J. Diddams & co, 1900)

The Queensland flora - Bailey, Frederick Manson 1827 -1915 (Printed by H. J. Diddams & co, 1902)

The Queensland flora - Bailey, Frederick Manson 1827 -1915 (Printed by H. J. Diddams & co, 1905)

Rambles in search of flowerless plants - Plues, Margaret (Journal of horticulture & cottage gardener office; [etc., etc.], 1864)

Rapport sur les progrès de la botanique phytographique - Brongniart, Adolphe, 1801 -1876 (Imprimerie Impériale, 1868)

Résultats scientifiques du Congrès international de botanique, Vienne 1905 = Wissenschaftliche Ergebnisse des Internationalen botanischen Kongresses, Wien 1905 - Lotsy, Johannes Paulus, 1867 -1931 (G. Fischer, 1906)

Recherches sur l'origine et l'évolution des plastides chez les ptéridophytes. Contribution à l'étude de la cellule végétale - Emberger, Louis, 1897 - (Librairie Octave Doin, Gaston Doin, éditeur, 1921)

Recherches sur la fécondation et le commencement de l'hénogénie chez divers animaux - Fol, Hermann, 1845 -1892 (H. Georg, 1879)

A record of the doctors in botany of the University of Chicago 1897-1916, presented to John Merle Coulter, professor and head of the Department of botany, by the doctors in Botany at the quarter-centennial of the university, June 1916 - University of Chicago. (1916)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 2016)

Records of the Botanical Survey of India - Botanical Survey of India. (Office of Supt. of Govt. Print., India, 1904)