Bulletin of the Wisconsin Natural History Society - Wisconsin Natural History Society. (The Society, 1907)

Bulletin of the Wisconsin Natural History Society - Wisconsin Natural History Society. (The Society, 1909)

Bulletin - Ohio Biological Survey. (Ohio State University, 1913)

Bulletin scientifique de la France et de la Belgique - Laboratoire d'évolution des êtres organisés (Paris, France) (Octave Doin, 1901)

Bulletin scientifique de la France et de la Belgique - Laboratoire d'évolution des êtres organisés (Paris, France) (Octave Doin, 1915)

Bulletin scientifique de la France et de la Belgique - Laboratoire d'évolution des êtres organisés (Paris, France) (Octave Doin, 1916)

Bulletin - Smithsonian Institution. (G.P.O, 1938)

Bulletin - Smithsonian Institution. (G.P.O, 1939)

Bulletin - Société d'histoire naturelle d'Autun (France) (La Socit, 1888)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1905)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1911)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1913)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1918)

Bulletin. Biological series - University of Montana (Missoula) (University of Montana, 1901)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1900)

Bulletins - Minnesota Academy of Sciences, Minneapolis

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1860)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1861)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1862)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1857)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1893)

Bulletins de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1862)

Bulletins de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1863)

Bulletins de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1864)

Bulletins de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1865)

Bulletins de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1866)

Bulletins des séances de la Classe des Sciences / Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (Acad, 1860)

Bulletins des séances de la Classe des Sciences / Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (Acad, 1862)

Bulletins des travaux de la Société Murithienne ... - Favre, Émile, 1843 -1905 (Impr. Dulex-Ansermoz, 1867)

Bullettino bibliografico della botanica italiana - Traverso, G. B. (Giovanni Battista), 1878 -1955 (Societ botanica italiana, 1904)

Bullettino del Laboratorio ed Orto botanico - Tassi, Flaminio, 1851 - (L. Lazzeri, 1905)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1892)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1893)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1894)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1896)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1900)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1901)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1903)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1904)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1907)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1910)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1912)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1914)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1918)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1922)

Butlletí de la Institució Catalana d'Història Natural - Institució Catalana d'Història Natural (Barcelona, Spain) (1908)

Butlletí de la Institució Catalana d'Història Natural - Institució Catalana d'Història Natural (Barcelona, Spain) (1914)

Butlletí de la Institució Catalana d'Història Natural - Institució Catalana d'Història Natural (Barcelona, Spain) (1919)

The butterflies and moths of Kent - Chalmers-Hunt, J. M. (T. Buncle, 1961)

Butterflies and moths of Newfoundland and Labrador : the macrolepidoptera - Morris, Ray F. (Agriculture Canada, 1980)

Butterflies of Britain & Europe - Tolman, Tom (HarperCollins, 1997)

Butterfly counts - Opler, Paul A. (The Society, 1982)

The Butterfly farmer - McGlashan, Ximena. (X. McGlashan, 1913)

Butterfly gardens - Illinois. Dept. of Conservation. (Illinois Dept. of Conservation, Natural Heritage Division, 1986)

C. E. Hobbs Botanical hand-book of common local, English, botanical and pharmacopial names arranged in alphabetical order, of most of the crude vegetable drugs, etc., in common use. Especially designed as a reference book for druggists and apothecaries - Hobbs, Charles E. (Printed by C.C. Roberts, 1876)

C. G. Calwers Käferbuch; Naturgeschichte der Käfer Europas zum Handgebrauche für Sammler - Calwer, C. G. (Carl Gustav), 1821 -1874 (J. Hoffman, 1883)

Calcutta journal of natural history, and miscellany of the arts and sciences in India - McClelland, John 1805 -1883 (Bishop's College Press, 1847)

Calcutta journal of natural history, and miscellany of the arts and sciences in India - McClelland, John 1805 -1883 (Bishop's College Press, 1848)

[Calendar posters] - Missouri Botanical Garden. (Missouri Botanical Garden, 2005)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1946)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1947)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1949)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1961)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1962)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1970)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1973)

California fish and game - California. Division of Fish; Game. (State of California, Resources Agency, Dept. of Fish and Game, 1989)

California wildflower seeds, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lester Rowntree & Co, 1946)

California wildflower seeds for Californian and Eastern gardens : 1940-41 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lester Rowntree & Co, 1940)

Calwers Käferbuch; einfürhrung in die kenntnis der käfer Europas - Calwer, C. G. (Carl Gustav), 1821 -1874 (E. Schweizerbart, [etc.], 1916)

The Cambridge British flora - Moss, Charles Edward, 1872 -1930 (University Press, 1920)

Canada lynx conservation assessment and strategy - U.S. Fish; Wildlife Service ([U.S. Department of Agriculture, Forest Service], 2000)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1872)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1873)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1875)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1887)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1889)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1892)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1911)

The Canadian farmer's manual of agriculture : the principles and practice of mixed husbandry, as adapted to Canadian soils and climate - Whitcombe, Charles Edward. (Adam, 1874)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1919)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1927)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1932)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1945)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1954)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1955)