Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1902)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1904)

Objects for the microscope : being a popular description of the most instructive and beautiful subjects for exhibition - Clarke, Louisa Lane (Groombridge, 1863)

Objects for the microscope, being a popular description of the most instructive and beautiful subjects for exhibition - Clarke, Louisa Lane (Groombridge and sons, 1871)

Objects for the microscope; a popular description of the most instructive and beautiful subjects for exhibition or examination - Clarke, Louisa Lane (Groombridge, 1889)

Occasional papers - San Diego Society of Natural History. (San Diego Society of Natural History, 1945)

Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. (Bishop Museum Press, 1914)

Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. (Bishop Museum Press, 1920)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Ocean gardens : the history of the marine aquarium, and the best methods now adopted for its establishment and preservation - Humphreys, Henry Noel, 1810 -1879 (Sampson Low, 1857)

Ocean gardens: the history of the marine aquarium, and the best methods now adopted for its establishment and preservation - Humphreys, Henry Noel, 1810 -1879 (S. Low, Son, 1857)

Oceanography miscellaneous, part 2 : hearings before the Subcommittee on Oceanography of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-sixth Congress - United States. Congress. House. Committee on Merchant Marine; Fisheries. (U.S. G.P.O, 1980)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1976)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1979)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1985)

Oceanus - Woods Hole Oceanographic Institution. (Woods Hole Oceanographic Institution, 1987)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1875)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1876)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1897)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1912)

Official guide to the museums of economic botany. No. 2, Monocotyledons and cryptogams (Printed for H.M. Stationary Off. by Eyre and Spottiswoode, 1895)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1846)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1848)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1856)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1867)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1869)

Oil spill sensitivity of the western Indian Ocean islands: coastal data from the Comoros Islands, Madagascar, Mauritius, Reunion and the Seychelles - Green, Edmund P. (Edmund Peter) 1965 - (WCMC, 1998)

Les oiseaux de la Suisse (Catalogue des oiseaux de la Suisse de V. Fatio et Th. Studer) élaboré par ordre du Département fédéral de l'intérieur (Inspection des forêts, chasse et pêche) - Fatio, Victor, 1838 -1906 (1907)

On molecular and microscopic science - Somerville, Mary, 1780 -1872 (J. Murray, 1869)

On the micro-lepidoptera of the West Indies - Walsingham, Thomas de Grey,‏ ‎ Lord, 1843 -1919 (Zoological Society of London, 1891)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1970)

Outlines of medical botany :comprising vegetable anatomy and physiology...and a glossary of terms - Reid, Hugo. (Maclachlan, Stewart & Co, 1896)

Oversigt over de i arktiske region hidtil fundne lepidoptera - Schøyen, Wilhelm Maribo, 1844 -1918 (Alb. Cammermeyer, 1880)

Overzicht der schadelijke en nuttige insecten van Java - Koningsberger, J. C. (Jacob Christiaan), 1867 -1951 (G. Kolff & co, 1908)

Pacific science - University of Hawaii. (University Press of Hawaii, 1947)

Pacific science - University of Hawaii. (University Press of Hawaii, 1949)

Pacific science - University of Hawaii. (University Press of Hawaii, 1954)

Pacific science - University of Hawaii. (University Press of Hawaii, 1961)

Pacific science - University of Hawaii. (University Press of Hawaii, 1968)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1914)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1916)

[Pamphlets on agriculture in Guam] (s.n, 1905)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1949)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1969)

Pathologische Pflanzenanatomie. In ihren Grundzügen - Küster, Ernst, 1874 -1953 (G. Fischer, 1916)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Petites nouvelles entomologiques (E. Deyrolle, 1869)

Die Pflanzen und Raupen Deutschlands : Versuch einer lepidopterologischen Botanik - Wilde, O. (E.S. Mittler, 1860)

Die Pflanzenfeinde aus der Klasse der Insekten. Ein nach Pflanzenfamilien geordnetes Handbuch sämmtlicher auf den einheimischen Pflanzen bisher beobachteten Insekten zum Gebrauch für Entomologen, Insektensammler, Botaniker, Land- und Forstwirthe und Gartenfreunde - Kaltenbach, J. H. (Johann Heinrich), 1807 -1876 (J. Hoffmann, 1874)

Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c - Hiltner, Lorenz (E. Ulmer, 1909)

Die Pflanzenwelt - Warburg, Otto, 1859 -1938 (Bibliographisches Institut, 1913)

Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete - Engler, Adolf, 1844 -1930 (D. Reimer, 1895)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1878)

Pharmacographia indica :A history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner & co., ld; [etc. etc.], 1892)

Pharmacographia indica a history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner, 1890)

Pharmazeutische Waarenkunde - Berg, O. C. (Otto Carl), 1815 -1866 (R. Gaertner, 1863)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2005)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2003)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1916)

Phyceæ novæ et minus cognitæ in maribus extraeuropæis collectæ - Areschoug, Johan Erhard, 1811 -1887 (E Typographica Academica, 1854)

Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ... - Harvey, William H. (William Henry), 1811 -1866 (L. Reeve, 1858)

Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ... - Harvey, William H. (William Henry), 1811 -1866 (L. Reeve, 1859)

Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ... - Harvey, William H. (William Henry), 1811 -1866 (L. Reeve, 1862)

Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ... - Harvey, William H. (William Henry), 1811 -1866 (L. Reeve, 1863)

Phycologia barbadensis : iconographie des algues marines récoltées à l'Ile Barbade (Antilles) (Chlorophycées et Phéophycées) - Shaw, Mary Helen. (Librairie des sciences naturelles P. Klincksieck, 1908)

Phycologia Britannica, or, A history of British sea-weeds : containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands - Harvey, William H. (William Henry), 1811 -1866 (Reeve Brothers, 1846)

Phycologia Britannica, or, A history of British sea-weeds : containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands - Harvey, William H. (William Henry), 1811 -1866 (Reeve Brothers, 1849)

Phycologia Britannica, or, A history of British sea-weeds : containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands - Harvey, William H. (William Henry), 1811 -1866 (Reeve Brothers, 1851)

Phycologia britannica, or, A History of British sea-weeds, containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands - Harvey, William H. (William Henry), 1811 -1866 (Reeve and Benham, 1846)

Phycologia generalis : oder, Anatomie, physiologie und systemkunde der tange - Kützing, Friedrich Traugott, 1807 -1893 (F. A. Brockhaus, 1843)

Phycologia Germanica, d.i. Deutschlands Algen in bündigen Beschreibungen. Nebst einer Anleitung zum Untersuchen und Bestimmen dieser Gewächse für Anfänger - Kützing, Friedrich Traugott, 1807 -1893 (W. Köhne, 1845)

Phycologia mediterranea - Ardissone, Francesco, 1837 -1910 (Antica tip. ferri di Maj e Malnati, 1883)

Physiologie des Stoffwechsels in Pflanzen und Thieren. Ein Handbuch für Naturforscher, Landwirthe und Aerzte - Moleschott, Jacob, 1822 -1893 (F. Enke, 1851)

Physiology at the farm in aid of rearing and feeding the live stock - Stephens, Henry, 1795 -1874 (W. Blackwood, 1867)