The woods of the United States : with an account of their structure, qualities and uses ; with geographical and other notes upon the trees which produce them - Sargent, Charles Sprague, 1841 -1927 (Appleton, 1885)

The woods of the United States - Sargent, Charles Sprague, 1841 -1927 (D. Appleton and Co, 1885)

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

The world's commercial products : a descriptive account of the economic plants of the world and of their commercial uses - Freeman, William George, 1874 - (Morang, 1907)

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)

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

The year without a summer? : world climate in 1816 - Harington, C. R. (Charles Richard), 1933 - (Canadian Museum of Nature, 1992)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1900)

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)

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

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 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, 1862)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1872)

Zeitschrift für Naturwissenschaften - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Verlag Naturwissenschaftlichen Vereins für Sachsen und Thüringen, 1902)

zhong guo luo zi zhi wu zhi - Hao, Jingsheng 郝景盛 1903 -1955 (zheng zhong shu ju yin xing, 1929)

zhong guo zhi wu ke shu jian suo biao - Zhongguo zhi wu yan jiu suo bian (zhong guo ke xue yuan zhi wu yan jiu suo, 1953)

zhong guo zhong zi zhi wu fen lei xue - zheng mian (xin ya shu dian chu ban, 1954)

zhong zi zhi wu fen lei xue jiang yi - Hu. Xianxiao (zhong hua shu ju chu ban, 1954)

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

Zoogeography - Hubbs, Carl L. (Carl Leavitt), 1894 -1979 (1958)