Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1912)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1916)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1917)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1918)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1924)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1925)

Bulletin of popular information - Arnold Arboretum, Harvard University - Arnold Arboretum. (Arnold Arboretum, 1939)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1973)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1975)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1977)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1991)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1996)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 2006)

Bulletin of the British Museum (Natural History) Botany - British Museum (Natural History) (The Museum, 1981)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1962)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1974)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1987)

Bulletin of the Buffalo Society of Natural Sciences - Buffalo Society of Natural Sciences. (Buffalo Society of Natural Sciences, 1881)

Bulletin of the Bussey Institution - Bussey Institution. (The University, 1903)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1877)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1878)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1879)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1883)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1886)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1885)

Bulletin of the Garden Club of America - Garden Club of America. (Garden Club of America, 1922)

Bulletin of the Illinois State Laboratory of Natural History - Illinois State Laboratory of Natural History. (The Laboratory, 1910)

Bulletin of the Josselyn Botanical Society of Maine - Josselyn Botanical Society of Maine. (1908)

Bulletin of the Natural History Society of New Brunswick - Natural History Society of New Brunswick. (Natural History Society of New Brunswick, 1905)

Bulletin of the New York Botanical Garden - New York Botanical Garden (Published for the Garden by the New Era Printing Co, 1900)

Bulletin of the New York Botanical Garden - New York Botanical Garden (Published for the Garden by the New Era Printing Co, 1909)

Bulletin of the New York Botanical Garden - New York Botanical Garden (Published for the Garden by the New Era Printing Co, 1921)

Bulletin of the scientific laboratories of Denison University - Denison Scientific Association. ([The University], 1892)

Bulletin of the scientific laboratories of Denison University - Denison Scientific Association. ([The University], 1885)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1874)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1875)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1908)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1909)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1920)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1923)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1879)

Bulletin of the United States National Museum - United States National Museum (G.P.O, 1881)

Bulletin of the U.S. Department of Agriculture - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1914)

Bulletin of the U.S. Department of Agriculture - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1915)

Bulletin of the Wisconsin Natural History Society - Wisconsin Natural History Society. (The Society, 1910)

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

Bulletin - Ontario. Dept. of Agriculture. (The Dept, 1905)

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 du Département du Nord et des pays voisins (Impr. de Six-Horemans, 1876)

Bulletin - Smithsonian Institution. (G.P.O, 1932)

Bulletin - State Geological and Natural History Survey of Connecticut - State Geological; Natural History Survey of Connecticut. (State Geological and Natural History Survey of Connecticut, 1916)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1912)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1914)

Bulletin trimestriel de la Société mycologique de France - Société mycologique de France. (La Société, 1920)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1907)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1906)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1909)

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. (1863)

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 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, 1863)

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

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, 1898)

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, 1904)

Bullettino della Società botanica italiana - Società botanica italiana. (Società botanica italiana, 1905)

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

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

Burgsdorfs Anviisning til at opelske indenlandske og udenlandske Træearter i det Frie : Obersat og omargeidet til anbendelse for Dannemark og Holsteen - Burgsdorf, Friedrich August Ludwig von, 1747 -1802 (Gylendals Forlag, 1799)

Butlletí de la Institució Catalana d'Història Natural - Institució Catalana d'Història Natural (Barcelona, Spain) (1916)

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

Butterflies and moths (British) - Furneaux, William S. (Longmans, Green, 1897)

Butterflies and moths (British) - Furneaux, William S. (Longmans, Green, and Co, 1894)

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

The butterflies of Europe described and figured. Rhopalocera Europae descripta et delineata - Lang, Henry C. (L. Reeve, 1884)

The butterflies of India, Burmah and Ceylon. A descriptive handbook of all the known species of rhopalocerous Lepidoptera inhabiting that region, with notices of allied species occurring in the neighbouring countries along the border; with numerous illustrations - Marshall, G. F. L. (George Frederick Leycester), 1843 -1934 (Central Press Co., ld, 1886)

Butterflies of the Riviera. A short account of the Rhopalocera of the Maritime Alps - Bromilow, Frank (Printed by P. Conso, 1892)

Butterfly-hunting in many lands : notes of a field naturalist - Poulton, Edward Bagnall, Sir, 1856 -1943 (Longmans, Green, and co, 1912)

By meadow, grove and stream : an introduction to nature study - Brown, Henry Hilton. (Religious Tract Society, 1907)

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)

The California horticulturist and floral magazine - Bay District Horticultural Society (F.A. Miller & Co, 1870)

The Cambridge British flora - Moss, Charles Edward, 1872 -1930 (University Press, 1914)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1869)

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

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.], 1884)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1885)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1886)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1901)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1908)