[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1889)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1892)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1895)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1899)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1900)

William Scoresby's des Jüngern Tagebuch einer reise auf den Wallfischfang, verbunden mit untersuchungen und entdeckungen an der ostkueste von Groenland im sommer 1822 - Scoresby, William, 1789 -1857 (F. Perthes, 1825)

Wilson's garden book for 1919, sixth year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co., Inc, 1919)

Wilson's garden book for 1920 (seventh year) : tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co., (Incorporated), 1920)

Wilson's garden book for 1921 (eighth year) : tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co., Incorporated, 1921)

Wilson's garden guide : better seeds for getter gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1951)

Wilson's seed annual for 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co. Incorporated, 1914)

Wilson's seed annual for 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Company Incorporated, 1915)

Wilson's seed annual for 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Company Incorporated, 1916)

Wilson's seed annual for 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Company Incorporated, 1917)

Wilson's seed annual for 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co., Inc, 1918)

Wilson's seeds, 1929, sixteenth year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. J. Wilson Seed Co, 1929)

Wilson's seeds, 1930, seventeenth year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. J. Wilson Seed Co, 1930)

Wilson's seeds, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. J. Wilson Seed Co., Inc, 1933)

Wilson's seeds, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1934)

Wilson's seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1935)

Wilson's seeds, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1936)

Wilson's Seeds, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1941)

Wilson's Seeds, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1942)

Wilson's Seeds, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1943)

Wilson's Seeds, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1944)

Wilson's Seeds, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1945)

Wilson's seeds : better seeds for better gardens, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1948)

Wilson's seeds : better seeds for better gardens, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1949)

Wilson's seeds for better gardens, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson's Seeds, 1947)

Wilson's tenth year! : Just real good seeds for your 1923 garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.J. Wilson Seed Co. Incorporated, 1923)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1860)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1859)

Winterson's garden guide : season 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Winterson's Seed Store, 1916)

Wm. Flemer's Sons Inc., F. & F. Nurseries-Princeton Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Flemer's Sons Inc, 1928)

The Wm. H. Moon Company : Glenwood Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Company, 1908)

Wochenschrift des Vereines zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten für Gärtnerei und Pflanzenkunde - Koch, Karl, 1809 -1879 (Wiegandt & Hempel [etc.], 1861)

The wonders of vegetation - Schele de Vere, M. (Maximilian), 1820 -1898 (Scribner, 1872)

Woodgro 1935 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1935)

Woodgro 1936 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1936)

Woodgro 1937 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1937)

World's choicest nursery products for rock-gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1916)

Wörterbücher der Naturgeschichte : in der deutschen, holländischen, dänischen, schwedischen, englischen, französischen, italienischen, Spanischen und Portugisischen Sprache - Nemnich, Philipp Andreas, 1764 -1822 (Adam Friedrich Böhme, 1798)

xi an zhi wu zhi - Xie, Yintang, Wang Mali & Zhao Guifang (shan xi ke xue ji shu chu ban she, 2007)

xi lin guo le sheng wu quan bao hu qu tui hua sheng tai xi tong guan li - Han, Nianyong. (qing hua da xue chu ban she, 2002)

xin jiang zong he kao cha bao gao:1956 nian 新疆综合考察报告:1956年 - Zhongguo ke xue yuan. Xinjiang zong ge kao cha dui 中国科学院新疆综合考察队 (ke xue chu ban she 科学出版社, 1958)

Yard and garden; a book of practical information for the amateur gardener in city, town or suburb - Baker, Tarkington, 1878 -1924 (The Bobbs-Merrill company, 1908)

Year book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Plainfield Nursery, 1929)

Year book, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1948)

Year book, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1949)

Year book [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Plainfield Nursery, 1927)

The year book for 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, 1945)

The Year book for 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1955)

The Year book for 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1956)

The Year book for 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1957)

Year book, the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (The Academy, 1923)

You can't go wrong with Jackson roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.E. Jackson, 1935)

Your 1949 garden book : the best rose forty-niner - Henry A. Dreer (Firm) (Henry A. Dreer, 1949)

Your garden needs in plants and seeds for nineteen twenty-six : our fourth year - Roderick M. Crocket & Co., Inc. (Roderick M. Crocket & Co, 1926)

yun nan zhi wu zhi - yun nan sheng zhi wu yan jiu suo (ke xue chu ban she, 1979)

yun nan zhong zi zhi wu ming lu - Zhongguo ke xue yuan. Kunming zhi wu yan jiu suo bian (yun nan ren min chu ban she)

Zeitschrift fur Allgemeine Erdkunde (1854)

Zeitschrift fur Allgemeine Erdkunde (1856)

Zeitschrift für Botanik (1914)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1864)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1867)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1872)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1921)

zhong guo bei bu he xi bei bu zhong yao si liao zhi wu he du hai zhi wu - Cui, Youwen. (gao deng jiao yu chu ban she)

zhong guo dong bei zhi wu jian suo biao - dong bei nong lin xue yuan zhi wu jiao yan zu he bian (dong bei nong lin xue yuan zhi wu jiao yan zu)

zhong guo jing ji zhi wu bing yuan mu lu - Dai, Fanglan, Xiang Wangnian & Zheng Ruyong (ke xue chu ban she, 1958)

zhong guo sha mo zhi wu zhi - Liu, Yingxin (ke xue chu ban she, 1987)

zhong guo tan yang qu zhi wu zhi - ning xia hui zu zi zhi qu nong ye xian dai hua ji di ban gong shi ning xia hui zu zi zhi qu xu mu ju shan xi sheng xi bei zhi wu yan jiu suo (ning xia ren min chu ban she, 1993)

Ziva : casopis pro biologickou práci - Akademie ved Ceské republiky (Academia, 1858)

Zoologische Jahrbücher. Supplementheft (Gustav Fischer, 1912)

Zoologische Sammlungen - Diels, Ludwig, 1874 -1945 (E.S. Mittler & Sohn, 1908)

The Zoologist : a monthly journal of natural history (1864)

The Zoologist : a monthly journal of natural history (1880)

Zur Kenntniss der Chlorophyllfarbstoffe und ihrer Verwandten; spectralanalytische Untersuchungen - Kraus, Gregor, 1841 -1915 (Schweizerbart, 1872)

Zur Speciesfrage - Hoffmann, Hermann, 1819 -1891 (De Erven Loosjes, 1875)

Die zweite Deutsche Nordpolarfahrt in den Jahren 1869 und 1870, unter Führung des Kapitän Karl Koldewey - Geographische Gesellschaft in Bremen. (F.A. Brockhaus, 1874)