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Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... - United States National Museum (G.P.O, 1914)

A report on the progress of vegetable physiology during the year 1837 - Meyen, Franz Julius Ferdinand (Taylor, 1839)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1889)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1885)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1887)

Report on the work of the Horn Scientific Expedition to Central Australia - Horn, William Austin, 1841 -1922 (Dulau, 1896)

A report upon the condition of affairs in the territory of Alaska - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1875)

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Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1903)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1901)

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Reproduction des cryptogames - Rietsch, Maximilien. (G. Baillière, 1882)

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A review of the problem of lead poisoning in waterfowl - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1986)

Revised catalogue of the diurnal Lepidoptera of America north of Mexico - Edwards, William H. (William Henry), 1822 -1909 ([American Entomological Society?], 1884)

Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum, mit erläuterungen - Kuntze, Otto, 1843 -1907 (A. Felix [etc., etc.], 1891)

A revision of Bastin's College botany for the use of students of pharmacy - Bastin, Edson S. (Edson Sewell), 1843 -1897 (G. P. Engelhard & co, 1920)

Revision of the North American species of Xanthium - Millspaugh, Charles Frederick, 1854 -1923 (1919)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1907)

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