Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1851)

Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1875)

Reisen eines naturforschers im tropischen Südamerika - Bürger, Otto, 1865 -1945 (T. Weicher, 1900)

The relation of fishes to ions in their natural environments - Wells, Morris Miller. (1915)

The relation of water to the behavior of the potato beetle in a desert - Breitenbecher, J. K. (Joseph Kumler), 1886 -1936 (1918)

Relationships of endrin and other chlorinated hydrocarbon compounds to wildlife in Montana, 1981-1982 - Weigand, John P. (Wildlife Division, Montana Dept. of Fish, Wildlife, and Parks, 1983)

The relative value of the processes causing evolution - Hagedoorn, Anna Cornelia (M. Nijhoff, 1921)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1842)

Report - Illinois. State Board of Fish Commissioners. (1883)

Report - Illinois. State Board of Fish Commissioners. (1884)

Report & transactions - Birmingham Natural History; Microscopical Society (Birmingham, England) (Herald Press)

Report & transactions - Birmingham Natural History; Microscopical Society (Birmingham, England) (Herald Press, 1880)

Report (and Abstracts of Proceedings and Papers) of the Brighton and Sussex Natural History and Philosophical Society - Brighton; Sussex Natural History; Philosophical Society. (1870)

Report (and Abstracts of Proceedings and Papers) of the Brighton and Sussex Natural History and Philosophical Society - Brighton; Sussex Natural History; Philosophical Society. (1875)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1835)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1846)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1855)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1859)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1861)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1862)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1870)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1878)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1882)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1893)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1896)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1898)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1922)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1926)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1936)

Report of the Bureau of Fisheries - United States. Bureau of Fisheries. (G.P.O, 1905)

Report of the Canadian Arctic Expedition 1913-18 (F. A. Acland, Printer to the King, 1919)

Report of the Canadian Arctic Expedition 1913-18 (F. A. Acland, Printer to the King, 1913)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1874)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1872)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1879)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1877)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1882)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1884)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1881)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1887)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1894)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1892)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1895)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1893)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1896)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1898)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1897)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1899)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1900)

Report of the Commissioner of Fisheries to the Secretary of Commerce and Labor for the fiscal year ended ... - United States. Bureau of Fisheries. (G.P.O, 1913)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1909)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1926)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1928)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1932)

Report of the Department of Fisheries of the Commonwealth of Pennsylvania - Pennsylvania. Department of Fisheries. (The Dept.], 1938)

Report of the East Kent Natural History Society - East Kent Natural History Society. (1858)

Report of the Fish Commissioners of the State of Pennsylvania for the year - Pennsylvania. Board of Fish Commissioners. (The Board], 1902)

Report of the International Polar Expedition to Point Barrow, Alaska, in response to the resolution of the House of Representatives of December 11, 1884 - Gray, Asa, 1810 -1888 (G.P.O, 1885)

Report of the Liverpool Microscopical Society - Liverpool Microscopical Society. (1887)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1910)

Report of the New Jersey state agricultural experiment station upon the mosquitoes occurring within the state, their habits, life history - Smith, John Bernhard, 1858 -1912 (MacCrellish & Quigley, state printers, 1904)

Report of the State Commissioners of Fisheries for the year - Pennsylvania. State Commissioners of Fisheries. (The Commissioners], 1898)

Report of the State Commissioners of Fisheries for the year - Pennsylvania. State Commissioners of Fisheries. (The Commissioners], 1889)

Report of the state zoölogist - Herrick, C. L. (Clarence Luther), 1858 -1904 (1895)