Color key to North American birds; with bibliographical appendix - Reed, Chester A. (Chester Albert), 1876 -1912 (D. Appleton, 1912)

Color key to North American birds, with bibliographical appendix - Reed, Chester A. (Chester Albert), 1876 -1912 (D. Appleton & Company, 1912)

Compendium of natural features information - Maryland. State Planning Dept. (The Department, 1975)

Condition and doings of the Boston Society of Natural History as exhibited by the annual reports - Boston Society of Natural History. (1864)

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

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1901)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1903)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1904)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1905)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1907)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1911)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1913)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1915)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1917)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1921)

Conspectus generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (Apud E.J. Brill, 1850)

Contents and index to volume 1 - Cory, Charles B. (Charles Barney), 1857 -1921 (Natural History Museum, 1917)

Contribucion á la ornitologia cubana - Gundlach, Johannes Christoph, 1810 -1896 (Imp. "La Antilla" de N. Cacho-Negrete, 1876)

A contribution to the ornithology of the Orinoco region - Cherrie, George Kruck, 1865 -1946 (Pub. for the Brooklyn museum, 1916)

Contributions of the American Entomological Institute - American Entomological Institute. (American Entomological Institute], 1970)

Contributions to the history of North American ornithology - Jackson, Jerome A (Nuttall Ornithological Club, 1995)

Contributions to the natural history of Alaska. Results of investigations ... in the Yukon district and the Aleutian islands; conducted under the auspices of the Signal service, United States Army, extending from May, 1874, to August, 1881 ... - Turner, Lucien M. (Lucien McShan) (Govt. Print. Off, 1886)

Contributions to the natural history of Alaska results of investigations made chiefly in the Yukon district and the Aleutian Islands; conducted under the auspices of the Signal Service, United States Army, extending from May, 1874, to August, 1881 - Turner, Lucien M. (Lucien McShan) (G.P.O, 1886)

Contributions to the natural history of the Bermudas. Vol. I - Goode, G. Brown (George Brown), 1851 -1896 (Govt. print. off, 1884)

The control of pigment formation in amphibian larvae - Johnson, Myrtle Elizabeth, 1881 - (University of California press, 1913)

The Coues check list of North American birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1882)

The crane-flies of New York - Alexander, Charles P. (Charles Paul), 1889 -1981 (1920)

The crawfishes of Michigan - Pearse, A. S. (Arthur Sperry), 1877 -1956 (Wynkoop Hallenbeck Crawford co., state printers, 1910)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1997)

Crustacea of Lake Titicaca - Faxon, Walter, 1848 -1920 (the Museum, 1876)

The cultivator : a monthly publication, devoted to agriculture - New York State Agricultural Society. (Published by New York State Agricultural Society, 1865)

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)

Des hybrides à l'état sauvage. Règne animal. 1. volume. (Classe des oiseaux) - Suchetet, André, 1849 - (Impr. Le Bigot frères, 1896)

A descriptive catalogue of the birds of Massachusetts - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Wright & Potter, 1864)

Destruction of the cotton boll weevil by birds in winter - United States. Bureau of Biological Survey. (U.S. Dept. of Agriculture, Bureau of Biological Survey, 1908)

A determination of the economic status of the western meadow-lark (Sturnella neglecta) in California - Bryant, H. C. (Harold Child), 1886 -1968 (University of California press, 1914)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1869)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1872)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1873)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1874)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1878)