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)

Year book [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Plainfield Nursery, 1926)

Year book for 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Forestry Co, 1922)

The year book for 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, 1937)

The year book for 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, 1938)

The year book for 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, 1944)

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

Year book of the Pennsylvania Horticultural Society - Pennsylvania Horticultural Society. (Pennsylvania Horticulutural Society, 1936)

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

Yearbook of the Heather Society - Heather Society (The Society, 1987)

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

The yellow witches' broom of subalpine fir in the intermountain region - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, 1957)

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

A Yosemite flora; a descriptive account of the ferns and flowering plants, including the trees, of the Yosemite National Park; with simple keys for their identification ... - Hall, Carlotta Case. (Elder, 1912)

Young's evergreens : 50 to 60 per cent cut : fall 1928 [bulletin and price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1928)

Young's evergreens at one-half list price [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1927)

Young's spring bargains in evergreen lining out stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1929)

Your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waukegan Nurseries, Incorporated, 1941)

Your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waukegan Nurseries, Incorporated, 1945)

Your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waukegan Nurseries, Inc, 1940)

Your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waukegan Nurseries, Incorporated, 1942)

Your garden, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waukegan Nurseries, Incorporated, 1944)

Your home grounds can be beautiful! - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Pontiac Nurseries, 1950)

Zapiski Imperatorskoĭ akademīi nauk, po Fiziko-matematicheskomu otdielenīiu. 8e série = Mémoires de lʹAcadémie impériale des sciences de St.-Pétersbourg, Classe physico-mathématique. 8e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia). Fiziko-matematicheskoe otdielenīe. (Prodaetsia u Kommissionerov Imperatorskoi Akademiia Nauk, 1900)

Zeitschrift des Mährischen Landesmuseums - Hucke, Karl. (Die Gesellschaft, 1907)

Zeitschrift für Botanik (1911)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1893)

Zoe:a biological journal (Zoe Publishing Co, 1894)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1915)