Western birds - California Field Ornithologists. (California Field Ornithologists, 2005)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2006)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2011)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2012)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2014)

Westover Nursery Company, Clayton, Missouri : fall 1925-spring 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westover Nursery Company, 1925)

The whale fishery and its appliances - Brown, James Temple. (G.P.O, 1883)

Wholesale growers palms specimen trees 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tetley Nurseries, 1958)

Wholesale price list : fall 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1923)

Wholesale price list spring, 1915 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1915)

Wholesale price list : spring 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1924)

Wholesale price list spring of 1918 : for nurserymen only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1918)

Wiener entomologische Zeitung (E. Reitter [etc.], 1888)

The wilderness movement and the national forests : 1980-1984 - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1988)

Wilderness study report - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Oregon State Office, 1991)

Wildland shrubs– their biology and utilization - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1972)

Wildlife food plants of the Southwest - Patton, David R. (U.S. Dept. of Agriculture, Forest Service, Southwestern Region, 1982)

The Williams collection of shells : a brief account of the conchological cabinet of Mrs. Alice L. Williams - Chadwick, George Halcott, 1876 -1953 (1908)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1964)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1967)

Woodpeckers of the world - Short, Lester L. (Delaware Museum of Natural History, 1982)

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

W.W. Rawson & Co - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.W. Rawson & Co, 1897)

A year with a whaler - Burns, Walter Noble, 1866 -1932 (Outing publishing co, 1913)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1899)

Yosemite nature notes - United States. National Park Service. (Yosemite Natural History Association, 1922)

Le yucche; nozioni botaniche, specie, varietà, ibridi, usi economici - Molon, Girolamo. (Ulrico Hoepli, 1914)

Zeitschrift für Malakozoologie - Menke, Karl Theodor, 1791 -1861 (Hahn'schen Hofbuchhandlung, 1849)

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

The Zoological record - Zoological Society of London. (J.V. Voorst, 1893)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1907)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1909)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1911)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1912)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1913)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1916)

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

The Zoological record - Zoological Society of London. (J.V. Voorst, 1922)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1909)