Willhite melon seeds : thirty-third annual catalogue, wholesale and retail - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willhite Melon Seed Farms, 1956)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1864)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1863)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1979)

Die wirtswechselnden Rostpilze : Versuch einer Gesamtdarstellung ihrer biologischen Verhältnisse - Klebahn, H. (Heinrich) (Gebrüder Borntraeger, 1904)

Die wirtwechselnden Rostpilze; Versuch einer Gesamtdarstellung ihrer biologischen Verha¨ltnisse - Klebahn, H. (Heinrich) (Gebrder Borntraeger, 1904)

Wood's permanent pasture and hay mixtures - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.W. Wood & Sons, 1953)

Wood's tested seeds, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.W. Wood & Sons, 1949)

Wood's tested seeds, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.W. Wood & Sons, 1950)

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)

Woodgro 1938 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1938)

Woodgro 1940 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1940)

Woodgro 1942 seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Wood & Sons Inc, 1942)

Woodruff's 1944 seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Company, 1944)

Woodruff's 1945 seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Woodruff & Sons, 1945)

Woodruff's 1946 seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Woodruff & Sons, Inc, 1946)

Woodruff's 1947 seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Woodruff & Sons, Inc, 1947)

Woodruff's descriptive list of vegetable varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Woodruff & Sons, 1949)

Woodruff's descriptive list of vegetable varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Woodruff & Sons, 1944)

Woodside vine seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Co, 1953)

Woodside vine seeds : 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Co, 1954)

Woodside vine seeds : 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Co, 1955)

Woodside vine seeds : 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Co, 1956)

Woodside vine seeds : 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Company, 1957)

Woodside vine seeds : 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodside Seed Growers Company, 1958)

World adapted tomato varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glecklers, 1953)

World directory of forest pathologists and entomologists - United States. Forest Service. (U.S. Forest Service, 1976)

World famous flower and vegetable seeds : 1943 spring edition - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Deposit Seed Company, 1943)

The world needs food, plant something, food for defense, food for victory : plan your 1944 garden now - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springfield Seed Company, 1944)

A world of new tomato varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glecklers, 1952)

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)

Die Wurzelpilze der Orchideen, ihre Kultur und ihr Leben in der Pflanze - Burgeff, Hans, 1883 -1976 (G. Fischer, 1909)

Wyatt-Quarles Seed Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyatt-Quarles Seed Company, 1969)

Wyatt-Quarles Seed Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyatt-Quarles Seed Company, 1971)

Wyatt-Quarles Seed Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyatt-Quarles Seed Company, 1970)

Wyatt-Quarles Seed Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyatt-Quarles Seed Company, 1972)

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, 1954)

Wyatt's tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1952)

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

Wyatt's tested seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt and Sons, 1953)

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)

Wyatt's tested seeds for 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Job P. Wyatt & Sons, 1955)

xi bao se su P450 mei xi de jie gou gong neng yu ying yong qian jing - Leng, Xinfu & Qiu Xinghui (ke xue chu ban she, 2001)

xia deng zhi wu fen lei xue - Du, Yaquan (杜亜泉) (shang wu yin shu guan)

xin jiang nong ye ke xue yan jiu cheng guo hui ji 新疆农业科学研究成果汇集 - Xinjiang nong ye ke xue yan jiu suo 新疆农业科学研究所 (xin jiang nong ye ke xue yan jiu suo 新疆农业科学研究所, 1959)

yan jiu bao gao 研究报告 - lin ye bu lin ye ke xue yan jiu suo 林业部林业科学研究所 (lin ye bu lin ye ke xue yan jiu suo chu ban 林业部林业科学研究所出版, 1956)

Year-around chrysanthemum manual : 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gloeckner, 1953)

Year-around chrysanthemum manual : 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred C. Gloeckner & Company, Incorporated, 1954)

Year-around chrysanthemum manual : 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred C. Gloeckner & Company, Incorporated, 1955)

Year-around chrysanthemum manual : 1956 edition - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred C. Gloeckner & Company, Incorporated, 1956)

Year-around chrysanthemum manual : 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred C. Gloeckner & Company, Incorporated, 1958)

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

Year book - Carnegie Institution of Washington - Carnegie Institution of Washington (Carnegie Institution of Washington, 1921)

Year book of the Pennsylvania Horticultural Society - Pennsylvania Horticultural Society. (Pennsylvania Horticulutural Society, 1938)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1902)

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, 1905)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1906)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1912)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1917)

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

Yearbook of the Heather Society - Heather Society (The Society, 1989)

Yearbook of the Heather Society - Heather Society (The Society, 2000)

Yearbook of the United States Department of Agriculture - United States. Department of Agriculture. (Govt. Print. Off, 1906)

Yield, stand, and volume tables for white fir in the California pine region - Schumacher, F. X. (Francis Xavier), 1892 - (Agricultural Experiment Station, 1926)

Your garden book, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1955)

Your garden book, 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1957)

Your garden book, 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1958)

Your garden book, 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1959)

Your garden book, for 1949 : beauty and abundance from your own garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1949)

Your garden book, for 1950 : beauty and abundance from your own garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1950)

Your garden book, for 1951 : beauty and abundance from your own garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1951)

Your garden book, for 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1952)

Your garden book, for 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1953)

Your garden book, for 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1954)

Your garden book for 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mile High Seed Co, 1956)

Yuca su cultivo, variedades, contenidos en almidon y fabricacion - Cunliffe, R. S, 1879 - (Estación Central Agronómica de Cuba, 1916)

Zeitschrift für Gärungsphysiologie (Gebrder Borntraeger, 1812)

Zeitschrift für Gärungsphysiologie (Gebrder Borntraeger, 1913)

Zeitschrift für Pflanzenzüchtung - Bayerischer Saatzuchtverein. (Paul Parey, 1913)

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

Zeitschrift für Pflanzenzüchtung - Bayerischer Saatzuchtverein. (Paul Parey, 1921)

Zeitschrift für technische Biologie (Gebrder Borntraeger, 1919)

Zeitschrift für technische Biologie (Gebrder Borntraeger, 1920)

Zeitschrift für Botanik (1909)

Zeitschrift für Botanik (1910)

Zeitschrift für Botanik (1911)

Zeitschrift für Botanik (1913)

Zeitschrift für Botanik (1914)

Zeitschrift für Botanik (1915)

Zeitschrift für Botanik (1916)

Zeitschrift für Botanik (1918)

Zeitschrift für Botanik (1921)

Zeitschrift für Botanik (1922)

Zeitschrift für Botanik (1923)

Zeitschrift für Botanik (1924)

Zeitschrift für induktive Abstammungs- und Vererbungslehre (Springer-Verlag, 1921)

Zeitschrift für induktive Abstammungs- und Vererbungslehre (Springer-Verlag, 1908)

Zeitschrift für Naturwissenschaften - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Verlag Naturwissenschaftlichen Vereins für Sachsen und Thüringen, 1909)

Zeitschrift für Naturwissenschaften - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Verlag Naturwissenschaftlichen Vereins für Sachsen und Thüringen, 1913)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)