Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1916)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1918)

Ornithologisches Centralblatt (1882)

Ornithologisches Jahrbuch (V. Tschusi, 1890)

Ornithologisches Jahrbuch (V. Tschusi, 1891)

Ornithologisches Jahrbuch (V. Tschusi, 1892)

Ornithologisches Jahrbuch (V. Tschusi, 1893)

Ornithologisches Jahrbuch (V. Tschusi, 1894)

Ornithologisches Jahrbuch (V. Tschusi, 1898)

Ornithologisches Jahrbuch (V. Tschusi, 1899)

Ornithologisches Jahrbuch (V. Tschusi, 1901)

Ornithologisches Jahrbuch (V. Tschusi, 1905)

Ornithologisches Jahrbuch (V. Tschusi, 1910)

Ornithologisches Jahrbuch (V. Tschusi, 1911)

Ornithologisches Jahrbuch (V. Tschusi, 1912)

Ornithologisches Jahrbuch (V. Tschusi, 1913)

Ornithologisches Jahrbuch (V. Tschusi, 1914)

Ornithologisches Taschenbuch für Preussen oder; Beschreibung der in Preussen und den unliegenden Gegenden vorkommenden Vogel für Jager, Jagdliehaber und Naturforcher - Ebel, Carl L. (Rosbachschen Buchdruckerei, 1823)

Ornithologisches Taschenbuch von und für Deutschland, oder, Kurze Beschreibung aller Vögel Deutschlands für Liebhaber dieses Theils der Naturgeschichte - Bechstein, Johann Matthäus, 1757 -1822 (Carl Friedrich Enoch Richter, 1803)

The Ornithologist; a magazine of ornithology and oölogy. First series - Swann, H. Kirke (Harry Kirke), 1871 -1926 (John Bale & Sons, 1896)

Ornithology - Jardine, William, 1800 -1874 (W.H. Lizars, 1853)

The ornithology of Francis Willughby of Middleton in the county of Warwick, esq. ... : in three books : wherein all the birds hitherto known, being reduced into a method sutable [i.e. suitable] to their natures, are accurately described : the descriptions illustrated by most elegant figures, nearly resembling the live birds, engraven in LXXVIII copper plates - Ray, John, 1627 -1705 (Printed by A.C. for John Martyn, 1678)

The ornithology of the Straits of Gibraltar - Irby, L. Howard (Leonard Howard Lloyd), 1836 -1905 (R.H. Porter, 1875)

Ornitologia italiana : opera postuma - Savi, Paul, 1798 -1871 (Successori Le Monnier, 1873)

Ornitologia siciliana : o sia catalogo ragionato degli uccelli che si trovano in Sicilia - Benoit, Luigi, 1804 -1890 (Giuseppe Fiumara, 1840)

Ornitologia toscana; ossia, Descrizione e storia degli uccelli che trovansi nella Toscana, con l'aggiunta della descrizioni di tutti gli altri proprj al rimanente d'Italia - Savi, Paul, 1798 -1871 (Dalla tipografia Nistri, 1827)

L'Ornitologo Ticinese ossia manuale descrittivo gli Uccelli di stazione e di passaggio nel Cantone Ticino, &c - Riva, Antonio. (1865)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1902)

Outline of the flora of Trinidad - Crüger, Herman, 1818 -1864 (Peter and Galpin, 1858)

Outlines of the natural history of Great Britain and Ireland, containing a systematic arrangement and concise description of all the animals, vegetables and fossiles which have hitherto been discovered in these kingdoms - Berkenhout, John, 1730 -1791 (Printed for P. Elmsly (Successor to Mr. Vaillant), 1769)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1913)

Pacific science - University of Hawaii. (University Press of Hawaii, 1960)

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

Une page d'histoire de la medecine : la thérapeutique sous les premiers Césars - Lépine, R. (Raphael), 1840 -1919 (F. Alcan, 1890)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1910)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1911)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1913)

Palaeontographica (Theodor Fischer, 1846)

Palaeontographica (Theodor Fischer, 1879)

Palaeontographica (Theodor Fischer, 1883)

Palaeontographica (Theodor Fischer, 1886)

Palaeontographica (Theodor Fischer, 1916)

Palearctic Migratory Bird Survey, survey records, 1966-1973 : Israel banding information (B-4928 to B-5204; C-2355 to C-2465; D-2039 to D-2081; E-2263 to E-2273; H-1251 to H-1260; J-1251; HK-62824), Spring 1969, PMS banding forms - National Museum of Natural History (U.S.) Palearctic Migratory Bird Survey (1969)

Palearctic Migratory Bird Survey, survey records, 1966-1973 : skeletons numeric list (1966)

Paleobiology field books - Dyar, Harrison G. (Harrison Gray), 1866 -1929 (1885)

Paléontologie française : description zoologique et géologique de tous les animaux mollusques et rayonnés fossiles de France : comprenant leur application à la reconnaissance des couches - Orbigny, Alcide Dessalines d', 1802 -1857 (Chez l'auteur, 1840)

Palmes et couronnes de l'horticulture de Belgique - Morren, Charles, 1807 -1858 (Direction générale de la Belgique horticole [etc.], 1851)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1897)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1918)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1896)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1987)

Die Papageien - Finsch, O. (Otto), 1839 -1917 (Brill, 1867)

Die Papageien - Finsch, O. (Otto), 1839 -1917 (Brill, 1868)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1881)

Papers and proceedings of the Royal Society of Van Diemen's Land - Royal Society of Tasmania. (Royal Society of Van Diemen's Land, 1849)

Papers and published notes : 1869 to 1876 - Goode, G. Brown (George Brown), 1851 -1896 (1869)

Papilio - Edwards, Henry, 1827 -1891 (New York Entomological Club, 1882)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1916)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1916)

Park's floral guide 1901 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Park, 1901)

Park's flower book : season 1938, 70th anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1938)

Park's flower book : season 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1939)

Park's illustrated flower book of choice dependable seeds : season of 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1929)

Park's illustrated flower book of choice dependable seeds : season of 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1930)

Park's illustrated flower book of choice dependable seeds : season of 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1932)

Park's illustrated flower book of choice dependable seeds : season of 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1923)

Park's illustrated flower book of choice dependable seeds : season of 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Company, 1935)

Park's illustrated flower book of choice dependable seeds, season of 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1934)

Park's illustrated flower book of choice dependable seeds, season of 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1937)

Park's illustrated flower book of choice dependable seeds, season of 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1936)

Des Pater Ludwig Feuillee, Ordensmönchen des Heil. Francisci von Paula, Königlichen Mathematici und Botanisten, wie auch Correspondentens der Königl. Academie der Wissenschaften, Beschreibung zur Arzeney dienlicher Pflanzen, welche in den Reichen des mittägigen America, in Peru und Chily vorzüglich im Gebrauch sind, : in dem Land selbst auf königl. Befehl, in den Jahren von 1709. 1710. und 1711. aufgesezet, nebst verschiedenen andern aus eben desselben Tageregister physischer Beobachtungen gesammelten und zur natürlichen Historie gehörigen Anmerkungen - Feuillée, Louis, 1660 -1732 (verlegts Johann Michael Seligmann, 1756)

Patterson's numbered check-list of North American plants north of Mexico - Patterson, Harry N. (Harry Norton), 1853 -1919 (Patterson, 1892)

Peonies, iris, hemerocallis, poppies : fall 1945–spring 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1945)

Peonies, iris, hemerocallis, poppies, fall '44 – spring '45 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1944)

Per una classificazione elementare dei Passercei, Rampicanti e Trogoni, raccolta e ordinamento di alcuni caratteri - Cavazza, Filippo. (Tipografia di Paolo Neri, 1909)

Perfil botánico-geológico de la carretera México-Acapulco - Mexico Secretaria de la Economia Nacional. Oficina de Geografia Economica (Talleres Gráficos de la Nación, 1935)

Peruvian bark a popular account of the introduction of Chinchona cultivation into British India - Markham, Clements R. Sir, (Clements Robert), 1830 -1916 (John Murray, 1880)

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

Peter Henderson & Co.'s catalogue of everything for the garden : 1881 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1881)

Peter Henderson & Co.'s catalogue of everything for the garden : 1880 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1880)

Peter Henderson & Co.'s catalogue of everything for the garden : 1877 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1877)

Peter Henderson & Co's seed catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1872)

Peter Henderson & Co's seed catalogue : 1875 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1875)

Peter Henderson & Co's seed catalogue : 1882 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s wholesale price list of plants, flower seeds and requisites for florists - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1884)

Peter Henderson & Co.s catalogue of everything for the garden : 1882 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.s manual of everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1883)

Peter Henderson & Co.s manual of everything for the garden : 1885 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1885)

Peter Henderson & Co.s manual of everything for the garden : 1884 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1884)

Peter Henderson & Co.s manual of everything for the garden : 1886 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1886)

Petites nouvelles entomologiques (E. Deyrolle, 1878)

Petri Matthioli ... Opera quae extant òmnia, hoc est, Commentarii in VI. libros Pedacii Dioscoridis Anazarbei De medica materia : adjectis in margine variis Graeci testus lectionibus, ex antiquissimis codicibus desumptis, qui Dioscorides depravatam lectionem restituunt - Bauhin, Caspar, 1560 -1624 (Sumptibus Joannis König, 1674)

Die Pflanzen des schlesischen Tertiärs - Reimann, H. (Preussische Geologische Landesanstalt, 1919)

Pflanzen-geographie auf physiologischer Grundlage - Schimper, A. F. W. (Andreas Franz Wilhelm), 1856 -1901 (Gustav Fischer, 1908)

Pflanzen-teratologie systematisch geordnet - Penzig, O. (Ottone), 1856 -1929 (A. Ciminago, 1894)

Pflanzenbiologische Schilderungen - Goebel, K. (Karl), 1855 -1932 (N.G. Elwert, 1891)

Pflanzenbiologische Untersuchungen : nebst algologischen Schluszbemerkungen - Hansgirg, Antonin, 1854 -1917 (Alfred Hölder, 1904)

Pflanzenphysiologie als Theorie der Gärtnerei. Für Botaniker, Gärtner, Landwirte, Forstleute und Pflanzenfreunde - Molisch, Hans, 1856 -1937 (G. Fischer, 1922)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1902)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1904)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1906)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1907)