The wild and cultivated cotton plants of the world; a revision of the genus Gossypium, framed primarily with the object of aiding planters and investigators who may contemplate the systematic improvement of the cotton staple - Watt, George, Sir, 1851 -1930 (Longmans, 1907)

The wild flowers of California : their names, haunts, and habits - Buck, Margaret Warriner, 1857 -1929 (H.S. Crocker, 1918)

The wild flowers of California : their names, haunts, and habits / by Mary Elizabeth Parsons ; illustrations by Margaret Warriner Buck - Parsons, Mary Elizabeth (Cunningham, Curtiss & Welch, 1907)

Wild flowers of the British Isles - Adams, H. Isabel. (London Book Co. Ltd, 1907)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1868)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1867)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1869)

[William Bull (Firm) materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1870)

The Williams Galapagos Expedition of the New York Zoological Society - Wheeler, William Morton, 1865 -1937 (1923)

Die wissenschaftliche Ausbildung des Apothekerlehrlings und seine Vorbereitung zum Gehülfenexamen : mit Rücksicht auf die neuesten Anforderungen - Schlickum, O. (Oscar), 1838 -1889 (Günther, 1884)

Wochenschrift des Vereines zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten für Gärtnerei und Pflanzenkunde - Koch, Karl, 1809 -1879 (Wiegandt & Hempel [etc.], 1866)

Wochenschrift des Vereines zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten für Gärtnerei und Pflanzenkunde - Koch, Karl, 1809 -1879 (Wiegandt & Hempel [etc.], 1872)

The work of the Forest department in India - India. Forest Dept. (Superintendent government printing, India, 1917)

The works of John Fothergill, M.D. Member Of The Royal College Of Physicians, And Fellow Of The Royal Society, Of London; Fellow Of The Royal College Of Physicians In Edinburgh; And Corresponding Member Of The Royal Medical Society Of Paris, And Of The American Philosophical Society At Philadelphia. With some account of his life - Lettsom, John Coakley, 1744 -1815 (printed for Charles Dilly, in the Poultry, 1784)

World Atlas of Biodiversity: earth's living resources in the 21st century - Groombridge, Brian (UNEP-WCMC, 2002)

World Plant Conservation Bibliography (1990)

The world's commercial products; a descriptive account of the economic plants of the world and of their commercial uses - Wilson, Ernest Henry, 1876 -1930 (Sir I. Pitman and sons, limited, 1907)

World treasures from Flowerland - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's Horticultural Establishment, 1935)

World treasures from Flowerland : 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's Horticultural Establishment, 1937)

Worldwide literature of the Lygus complex (Hemiptera, Miridae), 1900-1980 - Ertle, L. R. (U.S. Dept. of Agriculture, Agricultural Research Service, 1984)

Wörterbuch der biologie. Von dr. Heinrich Schmidt - Schmidt, Heinrich, 1874 -1935 (A. Kröner, 1912)

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)

Wrightia - University of Texas at Dallas. (University of Texas at Dallas, 1981)

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

xin jiang sheng wu duo yang xing - Yuan, Guoying (xin jiang ke xue ji shu chu ban she, 2008)

Year book - Carnegie Institution of Washington - Carnegie Institution of Washington (Carnegie Institution of Washington, 1915)

Year book - Carnegie Institution of Washington - Carnegie Institution of Washington (Carnegie Institution of Washington, 1918)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1895)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1903)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1904)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1921)

Yearbook of the United States Department of Agriculture - United States. Department of Agriculture. (Govt. Print. Off, 1908)

Yi chuan xue ci hui 遺傳學詞彙 - Li, Chengzhang 李成章 (Dong hua shu ju yin hang, 1982)

yi chuan xue shou ce - Sun, Ruyong, An Xipei & Zhao Gongmin (hu nan ke xue ji shu chu ban she, 1989)

you hua zhi wu ke zhi shuang zi ye zhi wu - Hutchinson, J. (John) 1884 -1972 (shang wu yin shu guan)

The young gardener's assistant : containing a catalogue of garden & flower seeds, with practical directions under each head for the cultivation of culinary vegetables and flowers ; also directions for cultivating fruit trees, the grape vine, &c., to which is added a calendar, showing the work necessary to be done in the various departments of gardening in every month of the year - Bridgeman, Thomas, 1786 -1850 ([s.n.], 1840)

The young gardener's assistant; containing a catalogue of garden & flower seeds, with practical directions under each head, for the cultivation of culinary vegetables and flowers, also directions for cultivating fruit trees, the grape vine, & c.; to which is added, a calendar, showing the work necessary to be done in the various departments of gardening in every month of the year - Bridgeman, Thomas, 1786 -1850 (For sale by T. Bridgeman [etc.], 1840)

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

yun nan zhi wu zhi - Zhongguo ke xue yuan. Kunming zhi wu yan jiu suo (ke xue chu ban she, 1983)

Zambezia : a general description of the valley of the Zambezi River, from its delta to the River Aroangwa, with its history, agriculture, flora, fauna, and ethnography - Maugham, R. C. F. (Reginald Charles Fulke), 1866 -1956 (J. Murray, 1910)

Zeitschrift fur Acclimatisation - Acclimatisations Verein.