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Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2005)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2004)

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Prodrome de la flore algologique des Indes Néerlandaises (Indes Néerlandaises et parties des territoires de Bornéo et de la Papuasie non Hollandaises) : supplement et tableaux statistiques - Wildeman, E. de (Emile), 1866 -1947 (Jardin botanique de Buitenzorg, 1899)

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

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

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

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 (1907)

Psammolittoral investigation 1972 - University of Michigan. Great Lakes Research Division. (Great Lakes Research Division, The University of Michigan, 1973)

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Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1853)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1854)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1855)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1856)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1859)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1860)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1861)

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

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1864)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1866)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1867)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1868)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1870)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1871)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1872)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1874)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1875)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1876)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1877)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1878)

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The Quarterly journal of the Geological Society of London - Geological Society of America. (1862)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1863)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1897)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1912)

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Reflections on the phenomenon of rejuvenescence in nature, especially in the life and development of plants - Braun, Alexander, 1805 -1877 (1851)

Reise der o¨sterreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wu¨llerstorf-Urbair Erster Band: Sporenpflanzen Botanischer Theil (Kaiserlich-Kniglichen Hof- und Staatsdruckerei, in Commission bei K. Gerold, 1870)

Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair - Österreichische Akademie der Wissenschaften. (Kaiserlich-Königliche Hof- und Staatsdruckerei; in Commission bei K. Gerold's Sohn, 1870)

Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair - Österreichische Akademie der Wissenschaften. (Kaiserlich-Königliche Hof- und Staatsdruckerei; in Commission bei K. Gerold's Sohn, 1866)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1892)

Repertorium annuum literaturae botanicae periodicae - Bemmelen, J. A. van. (Erven Loosjes, 1873)

Report - British Columbia Provincial Museum. (Printed by W.H. Cullin, 1965)

Report of botanical survey of southern and central Louisiana made during the year 1870 - Featherman, A. (Americus), 1822 - (Printed at the office of the Republican, 1871)

Report of progress for 1878-79 - Geological Survey of Canada (Dawson Bros, 1880)

Report of the Canadian Arctic Expedition 1913-18 (F. A. Acland, Printer to the King, 1913)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1928)

Report of the New Jersey state agricultural experiment station upon the mosquitoes occurring within the state, their habits, life history - Smith, John Bernhard, 1858 -1912 (MacCrellish & Quigley, state printers, 1904)

Report of the United States Geological Survey of the territories - Lesquereux, Léo, 1806 -1889 (Govt. Print. Off, 1873)

Report on botanical work in Minnesota for the year 1886 - Arthur, Joseph Charles, 1850 -1942 (Pioneer Press Co, 1887)

Report on the geology of Vermont; descriptive, theoretical, economical, and scenographical - Lesquereux, Léo, 1806 -1889 (Printed by the Claremont Manufacturing Company, 1861)

Report on the Irish Diatomaceae Part 1 - O'Meara, Eugene, 1815 -1880 (1875)