Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1983)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1895)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1901)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1901)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1903)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1886)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1889)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1892)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1962)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1874)

Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1890)

Proceedings of the Botanical Society of London - Botanical Society of London. (1839)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1960)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1963)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1965)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1967)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1956)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1862)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1866)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1928)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1949)

Proceedings of the Cotteswold Naturalists' Field Club - Cotteswold Naturalists' Field Club. (1872)

Proceedings of the Cotteswold Naturalists' Field Club - Cotteswold Naturalists' Field Club. (1918)

Proceedings of the Dublin University Zoological and Botanical Association - Dublin University. Zoological; Botanical Association.

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1867)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1869)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1875)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1880)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1851)

Proceedings of the Philosophical Society of Glasgow - Philosophical Society of Glasgow.

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, 1884)

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 Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1906)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1867)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1902)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1910)

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

Procès-verbaux - Société Linnéenne de Bordeaux. (1910)

Procès-verbaux - Société Linnéenne de Bordeaux. (1917)

Procès-verbaux - Société Linnéenne de Bordeaux. (1947)

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)

Prodrome de la flore du Grand-Duché de Luxembourg - Koltz, J. P. J. (Jean Pierre Joseph), 1827 -1907 (L. Schamburger, 1873)

Prodromus der Flora von Böhmen. Enthaltend die Beschreibungen und Verbreitungsangaben der wildwachsenden und im Freien kultivirten Gefässpflanzen des Königreiches ... - Celakovský, Ladislav Josef, 1834 -1902 (Selbstverlag des Comité's, 1867)

Prodromus einer Flora des Kronlandes Salzburg und dessen angränzenden Ländertheilen ... - Hinterhuber, Julius, 1810 -1880 (Druck der Oberer'schen Buchdr, 1851)

Prodromus florae Hercyniae; oder, Verzeichniss der in dem Harzgebiete wildwachsenden Pflanzen, nach dem Sexualsystem geordnet - Hampe, Ernst, 1795 -1880 (Gebauer, 1836)

Prodromus florae Monasteriensis Westphalorum. Phanerogamia - Bönninghausen, Clemens Maria Franz von, 1785 -1864 (F. Regensberg, 1824)

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 (1910)

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 (1934)

Protected Landscapes: experience around the world. Prepared for the International Symposium on Protected Landscapes, Grange-over-Sands, England 5-10 October 1987 (1987)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1873)

Quarterly Magazine of the High Wycombe Natural History Society - High Wycombe Natural History Society. (1866)

Rad - Jugoslavenska akademija znanosti i umjetnosti. Razred za prirodne nauke. (Jugoslavenska akademija znanosti i umjetnosti, 1876)

Reading Naturalist. Reading - Reading Natural History Society. (1962)

Reading Naturalist. Reading - Reading Natural History Society. (1965)

Reading Naturalist. Reading - Reading Natural History Society. (1966)

Reading Naturalist. Reading - Reading Natural History Society. (1974)

Reading Naturalist. Reading - Reading Natural History Society. (1976)

Reading Naturalist. Reading - Reading Natural History Society. (1977)

Reading Naturalist. Reading - Reading Natural History Society. (1981)

Reading Naturalist. Reading - Reading Natural History Society. (1983)

Reading Naturalist. Reading - Reading Natural History Society. (1987)

Reading Naturalist. Reading - Reading Natural History Society. (1992)

Reading Naturalist. Reading - Reading Natural History Society. (1994)

Reading Naturalist. Reading - Reading Natural History Society. (1998)

Reading Naturalist. Reading - Reading Natural History Society. (2000)

Reading Naturalist. Reading - Reading Natural History Society. (2004)

Reading Naturalist. Reading - Reading Natural History Society. (2007)

Reading Naturalist. Reading - Reading Natural History Society. (2008)

Reading Naturalist. Reading - Reading Natural History Society. (2011)

Recherches sur le pédoncule et la fleur des Liliacées - Allorge, V. (Valentine) 1888 -1977 (Imprimerie Nemourienne, 1920)

Record of Proceedings / Cleveland Naturalists' Field Club - Cleveland Naturalists' Field Club. (1899)

Rectifications et additions à la flore des environs de Rouen - Blanche, Emmanuel, 1824 -1908 (Impr. de A. Peron, 1850)

Recueil de l'Institut botanique (Université de Bruxelles) - Institut botanique Léo Errera. (Henri Lamertin, 1902)

Reisen in Bosnien und der Hertzegowina - Kiepert, Heinrich, 1818 -1899 (D. Reimer, 1877)

Reliquiae Formánekianae : enumeratio critica plantarum vascularium, quas itineribus in Haemo Peninsula et Asia Minore (Bithynia) factis collegit Dr. Ed. Formánek - Vandas, Karel, 1861 -1923 (Comitiorum Marchionatus Moraviae, 1909)

Rendiconti - Reale Accademia dei Lincei (l'Accademia, 1887)

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

Repertorium florae Ligusticae - De Notaris, Giuseppe, 1805 -1877 (Ex Regio Typographeo, 1844)

Repertorium specierum novarum regni vegetabilis. Beihefte (Verlag des Repertoriums, 1911)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1913)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1914)

Report - Lawes Agricultural Trust Committee (Lawes Agricultural Trust [etc.], 1906)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1928)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1929)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1932)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1933)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1935)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1945)

Report / Bury Natural History Society - Bury Natural History Society. (Bury Natural History Society, 1872)

Report, chemical and medical, of the Airthrey mineral springs : and a list of phænogamous plants collected in their vicinity - Royal College of Physicians of Edinburgh. (J. Hewit, 1831)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1845)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1850)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1886)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1913)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1925)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1936)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1937)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1938)

Report of the East Kent Natural History Society - East Kent Natural History Society. (1859)

Report of the East Kent Natural History Society - East Kent Natural History Society. (1858)

Report of the Proceedings of the Society / Cheltenham College Natural History Society - Cheltenham College Natural History Society. (1889)

Report of the Proceedings of the Society / Cheltenham College Natural History Society - Cheltenham College Natural History Society. (1895)

Report / Warwickshire Natural History & Archaeological Society - Warwickshire Natural History; Archaeological Society. (1861)

Reports and papers on botany - Grisebach, A. (August), 1814 -1879 (Printed for the Ray society, 1846)

Researches about atmospheric phenomena - Forster, T. (Thomas), 1789 -1860 (Printed for Harding, Mavor, and Lepard, 1823)

Resultate der Wissenschaftlichen Erforschung des Balatonsees - Hungary. Földmm̋uvelésügyi Minisztérium. (E. Hölzel, 1897)

Revision der Gattung Chilosia Meigen - Becker, Th. (Theodor), 1840 -1928 ([Deutsche Akademie der Naturforscher Leopoldina], 1894)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1869)

Revue bretonne de botanique pure et appliquée - Daniel, Lucien, 1856 -1940 (Guillemin, 1906)

Revue bretonne de botanique pure et appliquée - Daniel, Lucien, 1856 -1940 (Guillemin, 1910)

Revue bretonne de botanique pure et appliquée - Daniel, Lucien, 1856 -1940 (Guillemin, 1912)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1949)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1963)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1970)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1976)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1969)

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1886)

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1888)

Revue des sciences naturelles (1883)

Revue des sciences naturelles de l'ouest - Institut international de bibliographie scientifique. (Revue des sciences naturelles de l'ouest, 1895)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1886)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1887)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1888)

Revue générale de botanique (Libraire générale de l'enseignement, 1905)

Revue générale de botanique (Libraire générale de l'enseignement, 1910)

Revue générale de botanique (Libraire générale de l'enseignement, 1911)

Revue générale de botanique (Libraire générale de l'enseignement, 1914)

Revue générale de botanique (Libraire générale de l'enseignement, 1920)

Revue mycologique (Bureaux de la rédaction, 1900)

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1888)