Bulletin - United States. Bureau of Entomology. (G.P.O, 1901)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1902)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1904)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1906)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1907)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1854)

Butterflies and moths in their connection with agriculture and horticulture - Strecker, Herman, 1836 -1901 (L. S. Hart, printer, 1879)

The butterflies of Maine ... - Fernald, C. H. (Charles Henry), 1838 -1921 (Sprague & Son, 1884)

The butterflies of North America - Edwards, William H. (William Henry), 1822 -1909 (Houghton, Mifflin, 1884)

The butterflies of North America; second series - Edwards, William H. (William Henry), 1822 -1909 (Houghton, Mifflin, 1884)

The butterflies of the eastern United States and Canada : with special reference to New England - Riley, Charles V. (Charles Valentine), 1843 -1895 (The author, 1889)

The butterflies of the eastern United States and Canada with special reference to New England - Scudder, Samuel Hubbard, 1837 -1911 (S.H. Scudder, 1889)

Butterflies worth knowing, by Clarence M. Weed... - Weed, Clarence Moores, 1864 -1947 (Doubleday, Page & company, 1917)

Butterflies worth knowing - Weed, Clarence Moores, 1864 -1947 (Pub. by Doubleday, Page & Company for Nelson Doubleday, 1923)

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

Calendrier de faune et de flore pour les environs d'Aix; ou, Premie`re apparition des principaux insectes et premie`re floraison des ve´ge´taux qui s'y trouvent - Boyer de Fonscolombe, Etienne Laurent Joseph Hippolyte, 1772 -1853 (Impr. de Mme Veuve Tavernier, 1845)

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)

Canadian butterflies worth knowing - Weed, Clarence Moores, 1864 -1947 (Musson, 1917)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1921)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1869)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1870)

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

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1875)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1878)

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.], 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.], 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.], 1896)

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

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1898)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1910)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1913)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1914)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1915)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1916)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1920)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1922)

The Canadian horticulturist - Fruit Growers' Association of Ontario. (Fruit Growers' Association of Ontario, 1878)

The Canadian horticulturist - Fruit Growers' Association of Ontario. (Fruit Growers' Association of Ontario, 1896)

The Canadian horticulturist - Fruit Growers' Association of Ontario. (Fruit Growers' Association of Ontario, 1909)

The Canadian naturalist : a series of conversations on the natural history of Lower Canada - Gosse, Philip Henry, 1810 -1888 (John van Voorst, 1840)

The Canadian naturalist : a series of conversations on the natural history of Lower Canada - Gosse, Philip Henry, 1810 -1888 (Coles, 1971)

The Canadian naturalist a series of conversations on the natural history of Lower Canada - Gosse, Philip Henry, 1810 -1888 (J. van Voorst, 1840)

The Canadian naturalist and geologist - Natural History Society of Montreal. (B. Dawson, 1858)

The Canadian naturalist : a series of conversations on the natural history of Lower Canada - Gosse, Philip Henry, 1810 -1888 (J. Van Voorst, 1840)

The Canadian naturalist a series of conversations on the natural history of Lower Canada - Gosse, Philip Henry, 1810 -1888 (John Van Voorst, 1840)

The Canadian sportsman and naturalist - Couper, William, 1886 ([s.n.], 1881)

Canker-worms - Coquillett, D. W. (Daniel William), 1856 -1911 (U.S. Dept. of Agriculture, 1895)

The care of trees in lawn, street and park, with a list of trees and shrubs for decorative use - Fernow, B. E. (Bernhard Eduard), 1851 -1923 (H. Holt and company, 1910)

The care of trees, in lawn, street and park with a list of trees and shrubs for decorative use - Fernow, B. E. (Bernhard Eduard), 1851 -1923 (H. Holt, 1910)

The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use - Fernow, B. E. (Bernhard Eduard), 1851 -1923 (Holt, 1910)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1904)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1907)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1908)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1909)

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, 1911)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1913)

Casopis Ceské spolecnosti entomologické = Acta Societatis Entomologicae Bohemiae - Ceská spolecnost entomologická (Spolecnost, 1922)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell, Petter & Galpin, 1876)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1896)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1891)