Wyatt's tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1946)

Wyatt's tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1947)

Wyatt's tested seeds for 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1948)

Wyatt's tested seeds for 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1949)

Wyatt's tested seeds for 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1951)

Wyatts seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1935)

Wyatts seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1936)

X-L brand seeds for 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Graham & Ross, 1940)

X-L Flower & vegetable seeds, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Graham & Ross, 1943)

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)

yao yong zhi wu xue 药用植物学 - quan guo zhong deng wei sheng xue xiao shi yong jiao cai yao yong zhi wu xue bian xie zu 全国中等卫生学校 试用教材药用植物学 编写组 (si chuan ren min chu ban she 四川人民出版社, 1979)

Yates' annual, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Arthur Yates & Co., Ltd, 1939)

Year book - Toronto Horticultural Society (1910)

Year book 1922 : Perfegro field, flower and vegetable seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed, 1922)

Year book 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1923)

Year book 1923 : Perfegro field-flower and vegetable seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1923)

Year book 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1924)

Year book 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1925)

Year book 1925 : Perfegro brand vegetable, field and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Company, 1925)

Year book 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1926)

Year book 1926 : Perfegro field-flower and vegetable seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1926)

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

Year book 1927 : Perfegro brand vegetable, field and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1927)

Year book : 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (State Nursery and Seed Company, 1928)

Year book 1928 : Perfegro brand vegetable, field and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Company, 1928)

Year book 1929 : Perfegro brand vegetable, field and flower seeds for market gardeners and home planters - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Company, 1929)

Year book 1930 : Perfegro brand vegetable, field and flower seeds for market gardeners and home planters - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Company, 1930)

Year book 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1932)

Year book 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1933)

Year book 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (State Nursery & Seed Co, 1937)

Year book for 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (State Nursery & Seed Co, 1934)

Year book for 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (State Nursery & Seed Co, 1935)

Year book for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (State Nursery & Seed Co, 1936)

Year book of 1931 : Perfegro brand vegetable, farm and flower seeds for critical planters - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocky Mountain Seed Co, 1931)

A year of Costa Rican natural history - Calvert, Amelia Smith, 1876 -1965 (The Macmillan company, 1917)

A year's gardening - Hargrave, Basil. (C. Scribner's sons, 1912)

A year's gardening - Hargrave, Basil. (T. Werner Laurie, 1912)

Yearbook of the Heather Society - Heather Society (The Society, 1969)

Yearbook of the Heather Society - Heather Society (The Society, 1970)

Yearbook of the Heather Society - Heather Society (The Society, 1971)

The yellow sheets. January-February, 1947. Vol. 2, No. 8 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Laura D. Cole, 1947)

The yellow sheets. March-April, 1947. Vol. 2, No. 9 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Laura D. Cole, 1947)

Yes this is an advertisement, but if you have a garden or love flowers and plants it will pay you to read it - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Risley's Plant House, 1940)

Yopp garden seed : 41st annual catalogue and price list, 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Yopp Seed Company, 1951)

Yopp garden seed : 42nd annual catalogue and price list, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Yopp Seed Company, 1952)

Yopp's garden annual 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Yopp Seed Company, 1940)

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)

The young gardener's assistant, in three parts: containing catalogues of garden and flower seed, 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 to each part: showing the work necessary to be done in the various departments each month of the year ... - Bridgeman, Thomas, 1786 -1850 (For sale by the author [etc.], 1844)

The young gardener's assistant : in three parts containing catalogues of garden and flower seed, 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 to each part: showing the work necessary to be done in the various departments each month of the year ; the whole adapted to the climate of the United States - Bridgeman, Thomas, 1786 -1850 (For sale by the author, Broadway, corner of Eighteenth Street, 1845)

The young gardener's assistant, in three parts, containing catalogues of garden and flower seeds, with practical directions under each head for the cultivation of culinary vegetables and flowers; also, direction for cultivating fruit trees, the grape vine, &c., to which is added a calendar to each part: showing the work necessary to be done in the various departments each month of the year. The whole adapted to the climate of the United States - Bridgeman, Thomas, 1786 -1850 (The author, 1847)

The young gardener's assistant, in three parts, containing catalogues of garden and flower seed, with directions under each head for the cultivation of culinary vegetables and flowers - Bridgeman, Thomas, 1786 -1850 (The author, 1847)

The young lady's book of botany : being a popular introduction to that delightful science - University of Leeds. Library. (Robert Tyas, 1838)

Young's garden book : 1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Young's Seed Store, 1912)

Young's garden book for 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Young's Seed Store, 1916)

Young's garden book : season of 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Young's Seed Store, 1914)

Young's spring garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C. Young & Sons Company, 1921)

Your 1940 complete garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1940)

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

Your 1954 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Simpson Seed Company, 1954)

Your Arizona planting guide, 1940 : vegetable, flower, lawn, field seeds, fertilizers, garden tools, lawn supplies, insecticides - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Liefgreen Seed Co, 1940)

Your Arizona planting guide, 1941 : vegetable, flower, lawn, field seeds, insecticides, fertilizers, lawn supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Liefgreen Seed Company, 1941)

Your Arizona planting guide, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Liefgreen Seed Company, 1942)

Your Arizona planting guide, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Liefgreen Seed Company, 1943)

Your blue book of gardening : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Winsel-Gibbs Seed Company, 1926)

Your California planting guide, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.F. Smith & Co., Inc, 1945)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1946)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1945)

Your garden favorites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1937)

Your garden favorites : garden for victory - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett-Seedsmen Inc, 1944)

Your garden needs Barteldes seeds : 1940, our 73rd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barteldes Seed Co, 1940)

Your garden needs Barteldes seeds : our 74th year, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barteldes Seed Co, 1941)

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

Your garden year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward T. Bromfield Seed Co, 1922)

Your garden year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward T. Bromfield Seed Co, 1923)

Zeitschrift für Pflanzenzüchtung - Bayerischer Saatzuchtverein. (Paul Parey, 1914)

Zeitschrift für Botanik (1909)

Zeitschrift für Botanik (1912)

Zeitschrift für Botanik (1913)

Zeitschrift für Botanik (1914)

Zeitschrift für Botanik (1923)

Zeitschrift für die Entomologie (Friedrich Fleischer, 1839)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1856)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1860)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1861)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1876)

Zeitschrift für Entomologie - Verein für schlesische Insektenkunde zu Breslau. (In Commission bei I. Urban Kern, 1904)

Zentralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (F. Deuticke, 1914)

zhi wu zhong ming shi - Ding, Guangqi (ke xue chu ban she, 1978)

zhong guo tan yang qu zhi wu zhi - Xu, Yangpeng & Wang Kezhi (ning xia ren min chu ban she, 1996)

zhong guo zhong zi zhi wu fen ke jian suo biao - Geng, Yi Li (ke xue chu ban she, 1958)

zhong guo zhong zi zhi wu fen ke jian suo biao fu qiang wei ke dou ke ji he ben ke deng fen shu jian suo biao - Geng, Yi Li (zhong guo ke xue tu shu yi qi gong si, 1951)

zhong guo zhong zi zhi wu ke shu ci dian - Hou, Kuanzhao 侯宽昭 (ke xue chu ban she, 1982)

zhong zi zhi wu ming cheng - Zhongguo ke xue yuan bian yi ju (zhong guo ke xue yuan, 1954)

zhong zi zhi wu shu zhong jian suo biao . shang ce 种子植物属种检索表.上册 - Shanghai shi fan xue yuan hua dong shi fan da xue 上海师范学院, 华东师范大学 (ren min jiao yu chu ban she 人民教育出版社, 1980)

Ziva : casopis pro biologickou práci - Akademie ved Ceské republiky (Academia, 1856)

Ziva : casopis pro biologickou práci - Akademie ved Ceské republiky (Academia, 1860)

Zoología, Museo Cubano "Gundlach", catalogo general - Instituto de Segunda Enseñanza de La Habana. (Impr. "Cuba Intelectual", 1914)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1921)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1898)

Zur Flora der Umgebung Lembergs - Tomaschek, Anton, 1826 -1891 (s.n, 1866)

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

Zwei neue Pirolaceae aus der subsection erxlebenia - Andres, H. (1913)