Bollettino del R. Comitato geologico d'Italia - R. Comitato geologico d'Italia. (Il Comitato, 1909)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1875)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1879)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1883)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1884)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1891)

Bollettino della Società entomologica italiana - Società entomologica italiana. (Fratelli Pagano - Tipografi Editori, 1893)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1893)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1896)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1897)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1900)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1909)

Bollettino della Società geologica italiana - Societa geologica italiana. (La Società, 1911)

Bollettino delle sedute della Accademia gioenia di scienze naturali in Catania - Accademia gioenia di scienze naturali in Catania. (Accademia Gioenia di Scienze Naturali, 1897)

The Bombay flora : or, Short descriptions of all the indigenous plants hitherto discovered in or near the Bombay Presidency : together with a supplement of introduced and naturalised species - Dalzell, Nicol Alexander, 1817 -1878 (Printed at the Education Society's Press, 1861)

The Bombay flora, or, Short descriptions of all the indigenous plants hitherto discovered in or near the Bombay presidency together with a supplement of introduced and naturalised species - Dalzell, Nicol Alexander, 1817 -1878 (Education Society's Press, 1861)

Boston journal of natural history - Boston Society of Natural History. Museum. (Boston Society of Natural History, 1834)

Botanica. Relatorio apresentado ao Snr. coronel de engenharia Candido Marianno da Silva Rondon, chefe da Commissa o Brasileira - Hoehne, F. C. (Frederico Carlos), 1882 -1959 (1914)

A botanical dictionary: or elements of systematic and philosophical botany - Milne, Colin, 1743 or 1744 -1815 (Bye & Law for H.D. Symonds, 1805)

Botanical publications of E.D. Merrill - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (1899)

Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie - Engler, Adolf, 1844 -1930 (Schweizerbart [etc.], 1893)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1883)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1884)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1890)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1897)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1901)

Brehms thierleben, allgemeine kunde des thierreichs - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliographischen instituts, 1877)

Brehms Tierleben; allgemeine kunde des thierreichs. Mit 1910 abbildungen im text, 11 karten und 180 tafeln in farbendruck und holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institute, 1893)

Brehms Tierleben : allgemeine Kunde des Tierreichs : mit 1800 Abbildungen im Text, 9 Karten und 180 Tafeln in Farbendruck und Holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1892)

Brehms Tierleben. Allgemeine kunde des Tierreichs - Werner, Franz, 1867 -1939 (Bibliographisches Institut, 1915)

Britannica year-book, 1913 - a survey of the world's progress since the completion in 1910 of the Encyclopaedia Britannica - Chisholm, Hugh, 1866 -1924 (Encyclopaedia Britannica, 1913)

British bee journal & bee-keepers adviser (1886)

British bee journal & bee-keepers adviser (1887)

British bee journal & bee-keepers adviser (1889)

British bee journal & bee-keepers adviser (1894)

British bee journal & bee-keepers adviser (1895)

British bee journal & bee-keepers adviser (1896)

British bee journal & bee-keepers adviser (1900)

British bee journal & bee-keepers adviser (1903)

British bee journal & bee-keepers adviser (1904)

British bee journal & bee-keepers adviser (1907)

British bee journal & bee-keepers adviser (1874)

British bee journal & bee-keepers adviser (1880)

British bee journal & bee-keepers adviser (1881)

British bee journal & bee-keepers adviser (1883)

British bee journal & bee-keepers adviser (1875)

British bees : an introduction to the study of the natural history and economy of the bees indigenous to the British Isles - Shuckard, William Edward, 1802 -1868 (Reeve, 1866)

British bees: an introduction to the study of the natural history and economy of the bees indigenous to the British Isles - Shuckard, William Edward, 1802 -1868 (L. Reeve & co, 1866)

British journal of entomology and natural history - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1991)

The British moss-flora - Braithwaite, Robert, 1824 -1917 (1896)

British Oribatidæ - Michael, Albert Davidson, 1836 -1927 (The Ray Society, 1884)

Brockhaus' Konversations-Lexikon (F.A. Brockhaus, 1893)

Bulletin - New York State Museum. (University of the State of New York, 1951)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1980)

Bulletin - United States National Museum (G.P.O, 1914)

Bulletin - United States National Museum (G.P.O, 1913)

Bulletin - United States National Museum (G.P.O, 1915)

Bulletin - United States National Museum (G.P.O, 1928)

Bulletin - United States National Museum (G.P.O, 1921)

Bulletin - United States National Museum (G.P.O, 1948)

Bulletin - United States National Museum (G.P.O, 1922)

Bulletin - United States National Museum (G.P.O, 1924)

Bulletin - United States National Museum (G.P.O, 1965)

Bulletin - United States National Museum (G.P.O, 1964)

Bulletin de la Société d'Études scientifiques d'Angers - Société d'études scientifiques d'Angers. (The Society, 1871)

Bulletin de la Société philomathique de Paris - Société Philomathique de Paris. (Société philomathique de Paris, 1882)

Bulletin de la Société philomathique de Paris - Société Philomathique de Paris. (Société philomathique de Paris, 1899)

Bulletin de la Société d'acclimatation - Société d'acclimatation (Société d'acclimatation, 1871)

Bulletin de la Société d'acclimatation - Société d'acclimatation (Société d'acclimatation, 1875)

Bulletin de la Société d'acclimatation - Société d'acclimatation (Société d'acclimatation, 1876)

Bulletin de la Société des sciences naturelles de l'Ouest de la France - Société des sciences naturelles de l'Ouest de la France. (Société des sciences naturelles de l'Ouest de la France [etc.], 1895)

Bulletin de la Société des sciences naturelles de l'Ouest de la France - Société des sciences naturelles de l'Ouest de la France. (Société des sciences naturelles de l'Ouest de la France [etc.], 1898)

Bulletin de la Société des sciences naturelles de l'Ouest de la France - Société des sciences naturelles de l'Ouest de la France. (Société des sciences naturelles de l'Ouest de la France [etc.], 1903)

Bulletin de la Société entomologique de France - Société entomologique de France. (La Société, 1904)

Bulletin de la Société entomologique de France - Société entomologique de France. (La Société, 1908)

Bulletin de la Société entomologique de France - Société entomologique de France. (La Société, 1909)

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

Bulletin de la Société linnéenne de Normandie - Société linnéenne de Normandie. (The Society, 1906)

Bulletin de la Société royale de botanique de Belgique - Société royale de botanique de Belgique. (La Société, 1874)

Bulletin de la Société zoologique de France - Société zoologique de France. (La Société, 1887)

Bulletin des séances et bulletin bibliographique de la Société entomologique de France - Société entomologique de France. (Société entomologique de France, 1885)

Bulletin des séances et bulletin bibliographique de la Société entomologique de France - Société entomologique de France. (Société entomologique de France, 1892)

Bulletin / Division of Entomology, Bureau of Sugar Experiment Stations, Queensland - Queensland. Bureau of Sugar Experiment Stations. Division of Entomology. (A.J. Cumming, 1916)

Bulletin du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Impr. nationale, 1901)

Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie - Muséum national d'histoire naturelle (France) (Muséum National d'Histoire Naturelle, 1983)

Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie - Muséum national d'histoire naturelle (France) (Muséum National d'Histoire Naturelle, 1989)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1911)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1937)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1938)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1968)

Bulletin du Muséum national d'histoire naturelle. Section A, Zoologie, biologie et écologie animales - Muséum national d'histoire naturelle (France) (Muséum national d'histoire naturelle, 1986)

Bulletin from the laboratories of natural history of the State University of Iowa - University of Iowa. (The University, 1890)

Bulletin of miscellaneous information - Royal Botanic Gardens (Trinidad) (The Gardens, 1895)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1956)

Bulletin of the Amateur Entomologists' Society - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 1998)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1919)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1920)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1918)

Bulletin of the British Museum (Natural History). Geology. Supplement - British Museum (Natural History) (BM(NH), 1965)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1968)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1971)

Bulletin of the British Museum (Natural History) Geology - British Museum (Natural History) (BM(NH), 1976)

Bulletin of the British Museum (Natural History) Historical Series - British Museum (Natural History) (BM(NH), 1987)

Bulletin of the British Museum (Natural History) Zoology - British Museum (Natural History) (BM(NH), 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1995)

Bulletin of the Brooklyn Entomological Society - Brooklyn Entomological Society (The Society, 1932)

Bulletin of the Brooklyn Entomological Society - Brooklyn Entomological Society (The Society, 1943)

Bulletin of the Brooklyn Entomological Society - Brooklyn Entomological Society (The Society, 1951)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1889)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1863)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1910)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1918)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1942)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1954)

Bulletin of the Natural History Museum. Botany series - Natural History Museum (London, England) (The Natural History Museum, 2002)