The frog book; North American toads and frogs, with a study of the habits and life histories of those of the northeastern states. / With over three hundred photographs from life by the author. By Mary Cynthia Dickerson - Dickerson, Mary Cynthia, 1866 -1923 (Doubleday, Page, 1906)

The frog book : North American toads and frogs with a study of the habits and life histories of those of the Northeastern states - Dickerson, Mary Cynthia, 1866 -1923 (Doubleday, Page & Co, 1908)

The frog book; North American toads and frogs, with a study of the habits and life histories of those of the northeastern states - Dickerson, Mary Cynthia, 1866 -1923 (Doubleday, Page & company, 1906)

The frogs and toads of the Chicago area - Field Museum of Natural History. (Field Museum of Natural History, 1929)

Frogs of the genus Eleutherodactylus (Leptodactylidae) in western Ecuador : systematics, ecology, and biogeography - Lynch, John D. (Natural History Museum, University of Kansas, 1997)

Frogs : their natural history and utilization - Wright, Albert Hazen, 1879 -1970 (Govt. Print. Off, 1919)

Der Frosch; zugleich eine Einführung in das praktische Studium des Wirbeltier-Körpers - Hempelmann, Friedrich, 1878 - (W.Klinkhardt, 1908)

Further study of the garter snake, Thamnophis sirtalis, in northeastern Kansas - Fitch, Henry S. (Henry Sheldon) 1909 -2009 (Natural History Museum, University of Kansas, 2001)

FWS/0BS - U.S. Fish; Wildlife Service. Office of Biological Services. (Fish and Wildlife Service, U.S. Dept. of the Interior, 1976)

The Gardeners' chronicle and agricultural gazette (published for the proprietors, 1846)

The Gardeners' chronicle and agricultural gazette (published for the proprietors, 1867)

The gardeners' magazine (Gardeners' magazine office, 1890)

The gardening world illustrated : a weekly paper exclusively devoted to all branches of practical gardening (Brian Wynne, 1890)

Gegenbaurs morphologisches Jahrbuch (W. Engelmann, 1909)

Gegenbaurs morphologisches Jahrbuch (W. Engelmann, 1913)

Die gehirnnerven der saurier anatomisch - Fischer, J. G. (Johann Gustav), 1819 -1889 (Druck von J.A. Meissner, 1852)

Gemeinnützige systematische Naturgeschichte der Amphibien / entworfen von Carl Christian Gmelin ... ; Mit 67 Abbildungen auf 36 Kupfortafeln - Gmelin, Carl Christian, 1762 -1837 (Tobias L©ffler, 1839)

Genera insectorum - Wytsman, P. (Philogène) 1866 -1925 (L. Desmet-Verteneuil [etc.], 1902)

General biology; a book of outlines and practical studies for the general student - Needham, James G. (James George), 1868 -1957 (The Comstock publishing co, 1910)

General biology, a book of outlines and practical studies for the general student - Needham, James G. (James George), 1868 -1957 (Comstock, 1914)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1949)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1950)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1951)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1953)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1954)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1955)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1956)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1957)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1958)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1959)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1960)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1961)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1963)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1965)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1967)

General embryological information service - Hubrecht-Laboratorium (Embryologisch Instituut) (Hubrecht Laboratory, 1969)