Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1889)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1917)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1918)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1919)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1920)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1921)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1922)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1923)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1924)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1925)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1926)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1927)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1928)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1929)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1930)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1931)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1936)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1937)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1939)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1941)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1944)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1945)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1946)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1947)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1948)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1949)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1950)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1952)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1954)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1956)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1957)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1958)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1959)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1961)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1962)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1963)

Annual report of the Director to the Board of Trustees for the year - Field Columbian Museum. (Field Columbian Museum, 1904)

Annual report of the Director to the Board of Trustees for the year - Field Columbian Museum. (Field Columbian Museum, 1905)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1901)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1905)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1907)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1912)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1914)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1897)

Annual report of the Regents - New York State Museum. (J.B. Lyon, State Printer, 1900)

Annual report / Zoological Society of London - Zoological Society of London. (1861)

Annuario del Museo Zoologico della Università di Napoli - Università di Napoli. Museo Zoologico. (1863)

The Anoplura and Mallophaga of North American mammals - Kellogg, Vernon L. (Vernon Lyman), 1867 -1937 (The University, 1916)

Antelopes : global survey and regional action plans - Mallon, D P (International Union for Conservation of Nature and Natural Resources, 1900)

Anthropogenie; oder, Entwickelungs-geschichte des Menschen - Haeckel, Ernst, 1834 -1919 (W. Engelmann, 1910)

Anthropogenie, oder, Entwickelungsgeschichte des Menschen : Keimes- und Stammes-Geschichte - Royal College of Physicians of Edinburgh. (W. Engelmann, 1891)

Anthropogenie : oder, Entwickelungsgeschichte des Menschen : gemeinverständlich wissenschaftliche Vorträge über die Grundzüge der menschlichen Keimes- und Stammes-Geschichte - Royal College of Physicians of Edinburgh. (Engelmann, 1874)

Anthropogenie; oder, Entwickelungsgeschichte des Menschen. Gemeinverständliche wissenschaftliche Vorträge über die Grundzüge der Menschlichen. Keimes- und Stammes-geschichte - Haeckel, Ernst, 1834 -1919 (W. Engelmann, 1874)

Anthropogenie; oder, Entwickelungsgeschichte des menschen, Keimes- und stammesgeschichte - Haeckel, Ernst, 1834 -1919 (W. Engelmann, 1877)

Anthropogenie; oder, Entwickelungsgeschichte des menschen. Keimes- und stammesgeschichte - Haeckel, Ernst, 1834 -1919 (W. Engelmann, 1891)

Anzeiger der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Der Akademie, 1898)

[Appletons'] annual cyclopaedia and register of important events of the year: 1876-95. New series (D. Appleton, 1877)

Aquatic mammals; their adaptations to life in the water - Howell, A. Brazier (Alfred Brazier), 1886 - (Dover Publications, 1970)

Aquatic mammals; their adaptations to life in the water - Howell, A. Brazier (Alfred Brazier), 1886 - (C.C. Thomas, 1930)

Aquatic products in arts and industries - Stevenson, Charles Hugh, 1869 -1943 (Govt. print. off, 1903)

Archiv des Vereins der Freunde der Naturgeschichte in Mecklenburg... - Verein der Freunde der Naturgeschichte in Mecklenburg. (Opitz and Company, 1876)

Archiv des Vereins der Freunde der Naturgeschichte in Mecklenburg... - Verein der Freunde der Naturgeschichte in Mecklenburg. (Opitz and Company, 1902)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1912)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1913)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1914)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1915)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1916)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1917)

Archiv für mikroskopische Anatomie (J. Springer [etc.], 1901)

Archiv für Naturgeschichte (Nicolai, 1835)

Archiv für Naturgeschichte (Nicolai, 1837)

Archiv für Naturgeschichte (Nicolai, 1839)

Archiv für Naturgeschichte (Nicolai, 1841)

Archiv für Naturgeschichte (Nicolai, 1842)

Archiv für Naturgeschichte (Nicolai, 1843)

Archiv für Naturgeschichte (Nicolai, 1844)

Archiv für Naturgeschichte (Nicolai, 1845)

Archiv für Naturgeschichte (Nicolai, 1846)

Archiv für Naturgeschichte (Nicolai, 1847)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1920)

Archiv für Naturgeschichte (Nicolai, 1848)

Archiv für Naturgeschichte (Nicolai, 1849)

Archiv für Naturgeschichte (Nicolai, 1850)

Archiv für Naturgeschichte (Nicolai, 1851)

Archiv für Naturgeschichte (Nicolai, 1852)

Archiv für Naturgeschichte (Nicolai, 1854)

Archiv für Naturgeschichte (Nicolai, 1856)

Archiv für Naturgeschichte (Nicolai, 1857)

Archiv für Naturgeschichte (Nicolai, 1858)

Archiv für Naturgeschichte (Nicolai, 1860)

Archiv für Naturgeschichte (Nicolai, 1862)

Archiv für Naturgeschichte (Nicolai, 1865)

Archiv für Naturgeschichte (Nicolai, 1866)