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Catalogus dipterorum hucusque descriptorum - Kertész, Kálmán, 1867 -1922 (G. Engelmann, 1902)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

Chaparral : studies in the dwarf forests, or elfin-wood, of southern California - Plummer, Fred G. (Fred Gordon), 1864 -1913 (U.S. Dept. of Agriculture, Forest Service, 1911)

Check list of the forest trees of the United States : their names and ranges - Roth, Filibert, 1858 -1925 (Dept. of Agriculture, Forestry Division, 1898)

Check list of the forest trees of the United States : their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (Dept. of Agriculture, Forestry Division, 1898)

Check list of the forest trees of the United States, their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (Govt. Print. Off, 1898)

Check list of the forest trees of the United States, their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (U.S. Govt. Print. Off, 1927)

A check list of the vascular plants of Nicaragua : based largely on collections in Nicaragua made by the author and companions, 1968-1976 - Seymour, Frank Conkling. (H.N. Moldenke and A.L. Moldenke, 1980)

Chemical control of range weeds - United States. Range Seeding Equipment Committee. (U.S. Govt. Print. Off, 1966)

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Chloroplast pigments and chromatographic analysis - Strain, Harold H. (Harold Henry), 1904 - (Pennsylvania State University, 1958)

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The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1951)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1963)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1964)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1967)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1975)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1976)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1978)

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[Collected reprints, 1895-1916 - Beal, F. E. L. (Foster Ellenborough Lascelles), 1840 -1916 (s.n, 1900)

A college text-book of botany : being an enlargement of the author's "Elementary botany," - Atkinson, George Francis, 1854 -1918 (Henry Holt and Company, 1905)

A college text-book of Botany, being an enlargement of the author's "Elementary Botany." - Atkinson, George Francis, 1854 -1918 (Holt, 1905)

A college text-book of botany; being an enlargement of the author's "Elementary botany." - Atkinson, George Francis, 1854 -1918 (Holt, 1908)

A college textbook of pharmaceutical botany : with pharmaceutical and medical applications, especially adapted for the use of students of pharmacy and economic botany and as a reference for pharmacists, chemists and students in structural and systematic botany - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (P. Blakiston's Son, 1918)

The colony of British Honduras : its resources and prospects; with particular reference to its indigenous plants and economic productions - Morris, D. Sir, (Daniel), 1844 -1933 (Edward Stanford, 1883)

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Common weeds of the United States - United States. Agricultural Research Service. (Dover Publications, 1971)

Compendio de historia de drogas : extracto de la obra intitulada "Curso de historia de drogas" - Noriega, Juan Manuel 1869 -1858 (Editado por El S. de P. y E. de F. y B, 1922)

Compilation of public timber laws and regulations and decisions thereunder - United States. (Gov't print. off, 1903)

The composition of some Hawaiian feeding stuffs - Shorey, Edmund C. (Edmund Cecil), 1865 -1939 (Government Printing Office, 1906)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1899)

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The conservation status of biological resources in the Philippines - Cox, Roger (WCMC, 1988)

The continent we live on - Sanderson, Ivan Terence, 1911 -1973 (Random House, 1961)

Contribuciones a la materia médica argentina - Domínguez, Juan A. (Juan Aníbal), 1876 -1946 (Talleres s. a. Casa J. Peuser, 1928)

Contribution [I]-III to the coastal and plain flora of Yucatan - Millspaugh, Charles Frederick, 1854 -1923 (1895)

A contribution to our knowledge of seedlings - Lubbock, John, Sir, 1834 -1913 (K. Paul, Trench, Trübner, & co., ltd, 1892)

Contributions from the Botanical Laboratory - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Botanical Laboratory of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1924)

Contributions from the Herbarium of Columbia College - Columbia College (New York, N.Y.). Herbarium. (Columbia College, 1886)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1893)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1903)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1905)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1920)

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Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1969)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1979)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1983)

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Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cooperative Gulf of Mexico estuarine inventory and study, Texas : area description - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1975)

The Cottage gardeners' dictionary : describing the plants, fruits, and vegetables desirable for the garden, and explaining the terms and operations employed in their cultivation ; with an alphabetical list of synonymes - Johnson, George William, 1802 -1886 (Henry G. Bohn, 1863)

Cuatro libros de la naturaleza y virtudes de las plantas y animales, de uso medicinal en la Nueva España - León, Nicolás, 1859 -1929 (Imp. y Lit. en la Escuela de Artes, a cargo de José Rosario Bravo, 1888)

Cuatro libros de la naturaleza y virtudes medicinales de las plantas y animales de la Nueva España - León, Nicolás, 1859 -1929 (Imp. y lit. en la Escuelas des artes à cargo de J.R. Bravo, 1888)

Cunninghamia: A journal of plant ecology for eastern Australia - National Herbarium of New South Wales, (Royal Botanic Gardens, National Herbarium of New South Wales, 1998)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1900)

Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1909)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Doubleday, Page & Company, 1906)

Cyclopedia of farm crops - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1922)

Cyclopedia of farm crops, a popular survey of crops and crop-making methods in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1922)

Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1922)

La dasonomía : generalidades - Mexico. Secretaría de Fomento (Oficina Tip. de la Secretaría de Fomento, 1903)

The Death valley expedition. A biological survey of parts of California, Nevada, Arizona, and Utah. Part II - Stejneger, Leonhard, 1851 -1943 (Govt. print. off, 1893)

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Deutsch-Südwest-Afrika; Flora, Forst- und Landwirtschaftliche Fragmente - Dinter, Kurt, 1868 -1945 (T. O. Weigel, 1909)

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Diccionario botanico de nombres vulgares cubanos - Roig y Mesa, Juan Tomás, 1877 -1971 (Editorial Nacional de Cuba, 1928)

A dictionary of English names of plants applied in England and among English-speaking people to cultivated and wild plants, trees, and shrubs - Miller, William. (J. Murray, 1884)

A dictionary of modern gardening - Johnson, George William, 1802 -1886 (Lea and Blanchard, 1847)

Dictionary of the common names of plants with list of foreign plants cultivated in the open - Marloth, R. (Rudolf), 1855 -1931 (Specialty Press of South Africa, 1917)

A dictionary of the flowering plants and ferns - Willis, J. C. (John Christopher), 1868 -1958 (The University Press, 1919)

A dictionary of the plant names of the Philippine Islands - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Bureau of public printing, 1903)

A dictionary of the plant names of the Philippine Islands - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Bureau of Public Print, 1903)

Dictionnaire raisonné, etymologique, synonymique et polyglotte, des termes usités dans les sciences naturelles - Jourdan, A.-J.-L. (Antoine Jacques Louis), 1788 -1848 (J.-B. Baillière, 1834)

Dictionnaire raisonné, étymologique, synonymique et polyglotte, des termes usités dans les sciences naturelles ... - Jourdan, A.-J.-L. (Antoine Jacques Louis), 1788 -1848 (J.-B. Baillière, 1834)

A digitized systematic classification for ecosystems : with an illustrated summary of the natural vegetation of North America - Lowe, Charles H. (Forest Service, Rocky Mountain Forest and Range Experiment Station, 1980)

Diplosphyronid pseudoscorpions from New Mexico - Hoff, C. Clayton (Clarence Clayton), 1908 - (American Museum of Natural History, 1956)

A Directory of Neotropical Wetlands (1986)

Directory of Wetlands of International Importance (1987)