The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday & McClure, 1899)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page, 1898)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, 1902)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (W. Briggs, 1898)

The butterfly book; a popular guide to a knowledge of the butterflies of North America. With 48 plates in color-photography, reproductions of butterflies in the author's collection, and many text illustrations presenting most of the species found in the United States - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page, 1922)

The butterfly book; a popular guide to a knowledge of the butterflies of North America / The moth book; a popular guide to a knowledge of the moths of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1914)

The butterfly book; a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday & McClure Co, 1898)

The butterfly book; a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1904)

Butterfly counts - Opler, Paul A. (The Society, 1982)

Butterfly counts - Opler, Paul A. (The Society, 1984)

The butterfly guide : a pocket manual for the ready identification of the commoner species found in the United States and Canada - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1920)

The butterfly guide; a pocket manual for the ready identification of the commoner species found in the United States and Canada - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & company, 1915)

Butterfly-hunting in many lands : notes of a field naturalist - Poulton, Edward Bagnall, Sir, 1856 -1943 (Longmans, Green, and co, 1912)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1901)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1872)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1879)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1881)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1882)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1883)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1884)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1886)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1887)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1888)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1889)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1890)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1892)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1897)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1955)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1994)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2006)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1923)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1910)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1917)

Catalog der Lepidopteren des europæischen Faunengebiets. I. Macrolepidoptera - Staudinger, Otto, 1830 -1900 (Dr. O. Staudinger [etc.], 1871)

Catalog der Lepidopteren des palaearctischen Faunengebietes - Staudinger, Otto, 1830 -1900 (1901)

A catalogue/checklist of the butterflies of America, north of Mexico - Miller, Lee D. (Lepidopterists' Society, 1981)

Catalogue des coléoptères de la chaîne des Vosges et des régions limitrophes - Bourgeois, Jules, 1847 -1911 (Decker, 1909)

Catalogue des coléoptères de la chaîne des Vosges et des régions limitrophes - Bourgeois, Jules, 1847 -1911 (Decker, 1913)

Catalogue of diurnal Lepidoptera described by Fabricius in the collection of the British museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1869)

Catalogue of diurnal Lepidoptera of the family Satyridæ in the collection of the British museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1868)

Catalogue of family-group and genus-group names (Lepidoptera : Rhopalocera) - Bridges, Charles A. (C.A. Bridges, 1988)

Catalogue of injurious insects in Japan (exclusive of animal parasites) - Shiraki, Tokuichi, 1882 -1970. (1952)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1872)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1915)

Catalogue of the collection of palæarctic butterflies formed by the late John Henry Leech, and presented to the trustees of the British museum by his mother, Mrs. Eliza Leech - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1902)

Catalogue of the described Lepidoptera of North America. Prepared for the Smithsonian Institution - Morris, John G. (John Gottlieb), 1803 -1895 (Smithsonian Institution, 1860)

Catalogue systématique des lépidoptères de l'Andalousie - Rambur, P., 1801 -1870 (J.B. Baillière, 1858)

Channel Islands Lepidoptera - Shaffer, Michael, 1936 -2009 (Michael Shaffer, 2008)

Charles Darwin and the Origin of species; addresses, etc., in America and England in the year of the two anniversaries - Poulton, Edward Bagnall, Sir, 1856 -1943 (Longmans, Green, and co, 1909)

Check list of insects of the Dominion of Canada - Natural History Society of Toronto. (s.n.], 1883)

Check list of the Lepidoptera of Canada and the United States of America ... - McDunnough, James H. (James Halliday) 1877 -1962 (1938)