The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1953)

Winter botany, a companion volume to the author's Plant materials of decorative gardening - Trelease, William, 1857 -1945 (Trelease, 1918)

Winter botany, a companion volume to the author's Plant materials of decorative gardening - Trelease, William, 1857 -1945 (The author, 1918)

Die wissenschaftlichen ergebnisse der reise des grafen Béla Széchenyi in Ostasien 1877-1880 : Nach dem im jahre 1890[-1897] erschienenen ungarischen original - Széchenyi, Béla, gróf, 1837 -1918 (In Commission der verlagsbuchhandlung von E. Hölzel, 1898)

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)

Woody plants of the western national parks; containing keys for the identification of trees and shrubs - Bailey, Harold Edwards, 1906 - (University Press, 1949)

Woolson & Co.'s catalogue of hardy perennial plants and price list : spring and fall of 1879 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woolson & Co, 1879)

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)

W.W. Wilmore's Dahlia Farm & Nursery, 1933 : specialist in dahlias, gladioli and ornamental nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.W. Wilmore, 1933)

W.W. Wilmore's Dahlia Farm & Nursery, 1934 : specialist in dahlias, gladioli and ornamental nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.W. Wilmore, 1934)

W.W. Wilmore's Dahlia Farm and Nursery, growers of specimen trees, shrubs, evergreens, hardy perennials, bulbs, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.W. Wilmore's Dahlia Farm and Nursery, 1937)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection.

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1904)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1913)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1914)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1915)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1918)

[Wyman's Framingham Nurseries materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1922)

Wyman's garden book, 1939 - Framingham Nurseries, Framingham, Mass. (Wyman's Framingham Nurseries, 1938)

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)

xi zang nong ye kao cha bao gao 西藏农业考察报告 - xi zang gong zuo dui nong ye ke xue zu 西藏工作队农业科学组 (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, 1926)

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

The year book for 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, 1943)

The Year book for 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1950)

The Year book for 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1951)

The Year book for 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1952)

The Year book for 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1953)

The Year book for 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weston Nurseries, Inc, 1954)

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)

Yearbook - Botanical Society of the British Isles. (1951)

Yearbook of the Heather Society - Heather Society (The Society, 1965)

Yearbook of the Heather Society - Heather Society (The Society, 1967)

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

Yearbook of the Heather Society - Heather Society (The Society, 1980)

Yearbook of the Heather Society - Heather Society (The Society, 2003)

The Yellowstone National Park - Comstock, Theo. B. (Theodore Bryant), 1849 -1915 (1874)

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)

The Young naturalist (1880)

Your 1948 guide to better perennials, bulbs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carroll Gardens, 1948)

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

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

Your spring 1947 guide to better perennials, bulbs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carroll Gardens, 1947)

yun nan zhi wu zhi - Wu, Zhengyi. (ke xue chu ban she, 2006)

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 für Botanik (1912)

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

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zeitschrift für Säugetierkunde : im Auftrage der Deutschen Gesellschaft für Säugetierkunde e.V - Deutsche Gesellschaft für Säugetierkunde (Die Gesellschaft, 2000)

Zeitschrift für wissenschaftliche Insektenbiologie (s.n, 1912)

zhong guo dong wu di li qu hua yu zhong guo kun chou di li qu hua chu gao - Zhongguo ke xue yuan. Zi ran qu hua gong zuo wei yuan hui (ke xue chu ban she, 1959)

zhong guo seng lin di li zi ran fen qu zong lun.1956nian ying lin bu fen,lin ye bu lin ye ke xue yan jiu suo yan jiu bao gao 中国森林地理自然分区总论.1956年营林部分,林业部林业科学研究所研究报告 - sen lin di li yan jiu shi, wu zhong lun 森林地理研究室主编, 吴中伦主编 (lin ye bu lin ye ke xue yan jiu suo 林业部林业科学研究所, 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)

Zhong guo tui hua sheng tai xi tong yan jiu = Studies on degraded ecosystems in China - Chen, Lingzhi, 1933 - (Zhong guo ke xue ji shu chu ban she, 1995)

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

The Zoologist : a monthly journal of natural history (1861)