The structure and classification of birds - Beddard, Frank E. (Frank Evers), 1858 -1925 (Longmans, Green, and co, 1898)

The student's natural history - Baird, William, 1803 -1872 (C. Griffin, 1863)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and co, 1898)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and Co., ltd, 1905)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and Co., ltd, 1932)

Studies in gardening - Clutton-Brock, A. (Arthur), 1868 -1924 (C. Scribner's sons, 1916)

Studies on the structure & development of vertebrates - Goodrich, Edwin S. (Edwin Stephen), 1868 -1946 (Macmillan, 1930)

Stuttgarter Beiträge zur Naturkunde - Staatliches Museum für Naturkunde in Stuttgart (Das Museum, 1968)

Supplementary catalogue of trees, shrubs, and plants - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1853)

Supplementary list [of] Alpines, rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1929)

Svenska foglarna - Åkerlund, Peter, 1835 -1871 (Tryckt hos J. & A. Riis, 1856)

Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1903)

A synonymic catalogue of Lepidoptera Heterocera. (Moths) : Vol. 1. Sphinges and bombyces - Kirby, W. F. (William Forsell), 1844 -1912 (Gurney & Jackson, 1892)

A synonymic catalogue of Orthoptera - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees [by Taylor and Francis], 1906)

Synopsis avium : nouveau manuel d'ornithologie - Dubois, Alphonse, 1839 -1921. (H. Lamertin, 1904)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1842)

Synopsis of the naviculoid diatoms. Presented to the R. Swedish Academy of Sciences May 10, 1893 - Cleve, P. T. (Per Teodor), 1840 -1905 (Norstedt, 1894)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J. B. Metzler, 1855)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J.B. Metzler, 1855)

Synopsis plantarum in flora Gallica descriptarum - Candolle, Augustin Pyramus de, 1778 -1841 (Apud H. Agasse, 1806)

Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum - Persoon, C. H. (Christiaan Hendrik), 1755 -1837 (C.F. Cramerum, 1807)

System der Acalephen : eine aus führliche Beschreibung aller medusenartigen Strahlthiere - Eschscholtz, Johann Friedrich, 1793 -1831 (F. Dummler, 1829)

System der Acalephen : eine ausführliche Beschreibung aller medusenartigen Strahlthiere - Guimpel, Friedrich, 1774 - (bei Ferdinand Dümmler, 1829)

System der Ornithologie Westafrica's - Hartlaub, Gustav, 1814 -1900 (C. Schünemann, 1857)

Systema naturae, per regna tria naturae : secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae von Trattner, 1767)

Systematics and evolution of the Gruiformes (class, Aves) 1, The Eocene family Geranoididae and the early history of the Gruiformes - Cracraft, Joel (American Museum of Natural History, 1969)

Systematics of the family Nassariidae (Mollusca:Gastropoda) - Cernohorsky, Walter Oliver. (Auckland Institute and Museum, 1984)

Systematische Bearbeitung der Schmetterlinge von Europa, zugleich als Text, Revision und Supplement zu Jakob Hübner's Sammlung europäischer Schmetterlinge - Hübner, Jacob, 1761 -1826 (In Commission bei G. J. Manz, 1843)

Systematische Übersicht der Vögel Nord-Ost-Afrika's : mit Einschluss der arabischen Küste des rothen Meeres und der Nil-Quellen-Länder südwärts bis zum 4. Grade nördl. Breite - Heuglin, Theodor von, 1824 -1876 (K. Akademie der Wissenschaften, 1856)

Systematische Uebersicht der Vögel Nord-Ost-Afrika's : nebst Abbildung und Beschreibung von fünfzig Theils unbekannten, Theils noch nicht bildlich dargestellten Arten - Rüppell, Eduard, 1794 -1884 (In Commission der S. Schmerber'schen Buchhandlung (nachfolger H. Keller), 1845)

Systematisches Conchylien-Cabinet - Kobelt, Wilhelm, 1840 -1916 (Bauer und Raspe, 1837)

Système des plantes : contenant les classes, ordres, genres et espèces; les caractères naturels et essentiels des genres; les phrases charactéristiques des espèces; la citation des meilleures figures; le climat et le lieu natal des plantes; l'époque de leur floraison; leurs propriétés et leurs usages dans les arts, dans l'économie rurale et la médecine - Linné, Carl von, 1707 -1778 (Chez Bruyset aîné et Buynand, 1804)

Tableau encyclopédique et méthodique des trois règnes de la nature. Botanique - Poiret, Jean-Louis-Marie, 1755 -1834 (Panckoucke, 1823)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1891)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1977)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1875)

Die Thiere Andalusiens nach dem Resultate einer Reise zusammengestellt, nebst den Beschreibungen von 249 neuen oder bis jetzt noch unbeschriebenen Gattungen und Arten - Rosenhauer, Wilhelm Gottlob. (T. Blaesing, 1856)

Thirteenth annual catalog, 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.L. Crissey Alpine Gardens, 1926)

Three thousand flowers : seeds, bulbs, plants : offer 33A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1940)

Three thousand flowers : seeds, bulbs, plants : offer 35A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1941)

Three thousand flowers : seeds, plants, bulbs : offer 37-A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1942)

Tierleben : allgemeine Kunde des Tierreichs - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1911)

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Timehri - Royal Agricultural; Commercial Society of British Guiana. ("Argosy", 1887)

Trabajos del Museo de Ciencias Naturales Serie zoológica - Museo Nacional de Ciencias Naturales (Spain) (El Museo, 1912)

Trade list : fall 1931 : choice alpines, rockery plants and border perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James H. Bissland & Son, 1931)

Traité d'ornithologie, ou, Tableau méthodique des ordres, sous-ordres, familles, tribus, genres, sous-genres et races d'oiseaux : ouvrage entièrement neuf, formant le catalogue le plus complet des espèces réunies dans les collections publiques de la France / par R. P. Lesson - Lesson, R. P. (René Primevère), 1794 -1849 (Chez F.G. Levrault, 1831)

Traité des arbres & arbrisseaux, forestiers, industriels et d'ornement, cultivés ou exploités en Europe et plus particulièrement en France, donnant la description et l'utilisation de plus de 2400 espèces et 2000 variètès - Mouillefert, P. (Pierre), 1846 -1903 (Librairie des sciences naturelles, 1898)

Traité élémentaire et complet d'ornithologie, ou, Histoire naturelle des oiseaux - Barraband, Jacques, 1767? -1809 (Chez l'Auteur ... Duprat, 1800)

Traité pratique et raisonné des plantes médicinales indigènes, avec un atlas de 200 planches lithographiées - Cazin, Henri. (P. Asselin, 1868)

Traité des oiseaux de basse-cour d'agrément et de produit. Races-choix-incubation naturelle et artificielle, etc - Gobin, Alphonse, 1825 -1893 (1882)

Transactions of the Entomological Society of London - Royal Entomological Society of London (The Society, 1865)

Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne - Tyneside Naturalists' Field Club. (F. & W. Dodsworth [et al.], 1878)

Transactions of the Norfolk and Norwich Naturalists' Society - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists' Society, 2010)

Transactions of the Royal Scottish Arboricultural Society - Royal Scottish Arboricultural Society. (Douglas & Foulis, 1888)

Transactions of the Royal Society of South Australia, Incorporated - Royal Society of South Australia (The Society, 1964)

Transactions of the West Kent Natural History, Microscopical & Photographic Society - West Kent Natural History Microscopical; Photographic Society. (1901)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1869)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1877)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1879)

Trattato degli alberi della Toscana - Savi, Gaetano, 1769 -1844 (Presso G. Piatti, 1811)

Travels in various countries of Europe, Asia and Africa - Clarke, Edward Daniel, 1769 -1822 (Printed for T. Cadell and W. Davies, 1817)

Travels in various countries of Europe, Asia and Africa - Clarke, Edward Daniel, 1769 -1822 (Printed for T. Cadell and W. Davies, 1818)

A travers l'Afrique equatoriale - Pilette, Andre. (O. Lamberty, 1914)

The tree planter and plant propagator : being a practical manual on the propagation of forest trees, fruit trees, flowering shrubs, flowering plants, pot-herbs, etc. ... ; the tree pruner : being a practical manual on the pruning of fruit trees ... - Wood, Samual. (C. Lockwood and Co, 1880)

The tree planter and plant propagator; being a practical manual on the propagation of fruit trees - Wood, Samuel (C. Lockwood, 1880)

Trees and plants, hardy ornamentals - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rye Nurseries, 1899)

Trees and shrubs, hardy in the British isles - Bean, W. J. (William Jackson), 1863 -1947 (J. Murray, 1914)

Trees and shrubs hardy in the British Isles - Bean, W. J. (William Jackson), 1863 -1947 (J. Murray, 1916)

Trees, shrubs, perennials, evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nordstrom Nursery Co, 1935)

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1980)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1973)

Über das System und die Charakteristik der natürlichen Familien der Vögel - Fitzinger, Leopold Joseph, 1802 -1884 (Kais. Kön. Hof- und Staatsdruckerei, 1856)

Uccelli - Salvadori, Tommaso, 1835 -1923

Uccelli dello scioa e della regione fra zeila e lo scioa - Salvadori, Tommaso, 1835 -1923 (Tip. del Regio istituto sordo-muti, 1884)

The Uganda protectorate; an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1902)

United States National Arboretum contribution - National Arboretum (U.S.) (The Service, 1994)

The Universal herbal; or, Botanical, medical, and agricultural dictionary; containing an account of all the known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied, whether as food, as medicine, or in the arts and manufactures, with the best methods of propagation, and the most recent agricultural improvements ... - Green, Thomas. (Caxton Press, 1824)

The universal herbal : or botanical, medical and agricultural dictionary : containing an account of all known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied - Green, Thomas. (Printed at the Caxton Press by H. Fisher, 1816)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1986)

Untersuchungen zur Morphologie und Systematik der Vögel, zugleich ein Beitrag zur Anatomie der Stütz- und Bewegungsorgane - Fürbringer, Maximilian, 1846 -1920 (T. van Holkema, 1888)