The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book, a comprehensive popularised work on the structure and habits of the turtles, tortoises, corcodilians, lizards and snakes which inhabit the United States and Northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, 1920)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book, a comprehensive popularised work on the structure and habits of the turtles, tortoises, corcodilians, lizards and snakes which inhabit the United States and Northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, 1920)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

The reptile book; a comprehensive popularised work on the structure and habits of the turtles, tortoises, crocodilians, lizards and snakes which inhabit the United States and northern Mexico - Ditmars, Raymond Lee, 1876 -1942 (Doubleday, Page, 1915)

Reptiles and amphibians of southeastern national forests - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 1982)

Reptiles and amphibians of Texas - Strecker, John K. (John Kern), 1875 -1933 (Baylor University press, 1915)

Reptiles and amphibians of Texas - Strecker, John K. (John Kern), 1875 -1933 (Baylor University press, 1915)

The reptiles and batrachians of North America / by Samuel Garman - Garman, Samuel, 1843 -1927 (Yeoman Press, 1883)

The reptiles and batrachians of North America / by Samuel Garman - Garman, Samuel, 1843 -1927 (Yeoman Press, 1883)

The reptiles and batrachians of Rhode Island - Drowne, Frederick P. (C. Abbott Davis, 1905)

Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (W.J. Holland, 1869)

Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (D. Appleton and Co, 1873)

Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (W. J. Holland & co. [pref, 1869)

Reptiles and birds : a popular account of their various orders, with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (Cassell, Petter, Galpin)

Reptiles and birds, a popular account of their various orders : with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (D. Appleton, 1870)

Reptiles of Illinois - Parmalee, Paul W. (Dept. of Registration & Education, 1955)

Reptiles of Illinois - Parmalee, Paul W. (Dept. of Registration & Education, 1955)

The reptiles of Ohio - Conant, Roger, 1909 -2003 (University of Notre Dame Press, 1951)

The reptiles of the vicinity of New York City : with reference to the collection in The American Museum of Natural History - Ditmars, Raymond Lee, 1876 -1942 (The Museum, 1905)

Reptiles of the world : tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan Co, 1922)

Reptiles of the world : tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan Co, 1922)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan, 1910)

Reptiles of the world : tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan Co, 1922)

Reptiles of the world : tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan Co, 1922)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Macmillan, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Reptiles of the world: tortoises and turtles, crocodilians, lizards and snakes of the eastern and western hemispheres - Ditmars, Raymond Lee, 1876 -1942 (Sturgis and Walton, 1910)

Researches upon the venom of the rattlesnake : with an investigation of the anatomy and physiology of the organs concerned - Mitchell, S. Weir (Silas Weir), 1829 -1914 (Smithsonian Institution, 1860)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Researches upon the venoms of poisonous serpents - Reichert, Edward Tyson, 1855 - (Published by the Smithsonian Institution, 1886)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revised list of the vertebrated animals now or lately living in the gardens of the Zoological Society of London. Supplement containing additions received in 1872, 1873, and 1874 - Zoological Society of London. (For the Society, 1875)

Revised list of the vertebrated animals now or lately living in the gardens of the Zoological society of London. 1872 - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1872)

Revised list of the vertebrated animals now or lately living in the gardens of the Zoological Society of London. Supplement containing additions received in 1872, 1873, and 1874 - Zoological Society of London. (For the Society, 1875)

Revista Brasileira (1857)

Revista do Museu Paulista - Museu Paulista (O Museu, 1927)

Revista do Museu Paulista - Museu Paulista (O Museu, 1927)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1911)

Revue critique de paléozoologie et de paléophytologie (M. Cossman, 1897)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1859)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1859)

Revue générale des écrits de Linné; ouvrage dans lequel on trouve les anecdotes les plus intéressantes de sa vie privée, un abrégé de ses systêmes et de ses ouvrages, un extrait des ses Aménités académiques ... - Pulteney, Richard, 1730 -1801 (Buisson, 1789)

Revue générale des sciences pures et appliquées ([s.n.], 1904)

Revue horticole (Librairie agricole de la maison rustique, 1887)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1977)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1996)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 2014)

Richard Schomburgk's travels in British Guiana, 1840-1844 - Schomburgk, Richard, 1811 -1891 ("Daily Chronicle" Office, 1922)

Ritualistic combat of male gopher snakes, Pituophis melanoleucus affinis (Reptilia, Colubridae) - Bogert, Charles M. (Charles Mitchill), 1908 -1992 (American Museum of Natural History, 1966)

Roosevelt wild life annals - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (Roosevelt Wild Life Forest Experiment Station, 1929)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1930)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1871)

Salamandrina perspicillata und Geotriton fuscus : Versuch einer vergleichenden Anatomie der Salamandrinen, mit Besonderer berücksichtigung der Skelet-Verhaeltnisse - Wiedersheim, Robert, 1848 -1923 (Institut der sordo-muti, 1875)

Salamandrina perspicillata und Geotriton fuscus : Versuch einer vergleichenden Anatomie der Salamandrinen, mit Besonderer berücksichtigung der Skelet-Verhaeltnisse - Wiedersheim, Robert, 1848 -1923 (Institut der sordo-muti, 1875)

Die Säugethiere, Vögel und Amphibien nach ihrer geographischen Verbreitung tabellarisch zusammengestellt - Pompper, Hermann (Verlag der J.G. Hinrichsichen Buchhandlung, 1841)

Die Säugethiere, Vögel und Amphibien nach ihrer geographischen Verbreitung tabellarisch zusammengestellt - Pompper, Hermann (Verlag der J.G. Hinrichsichen Buchhandlung, 1841)

Schlangen und Schlangenfeinde : der Schlangenkunde - Lenz, Harald Othmar, 1799 -1870 (E.F. Thienemann, 1870)

Schlangen und Schlangenfeinde : der Schlangenkunde - Lenz, Harald Othmar, 1799 -1870 (E.F. Thienemann, 1870)

Schlangen und Schlangenfeinde - Lenz, Harald Othmar, 1799 -1870 (E.F. Thienemann, 1870)

Schlangen und Schlangenfeinde - Lenz, Harald Othmar, 1799 -1870 (E.F. Thienemann, 1870)

Schlangenkunde / von Harald Othmar Lenz - Lenz, Harald Othmar, 1799 -1870 (Beckersche Buchhandlung, 1832)

Schlangenkunde / von Harald Othmar Lenz - Lenz, Harald Othmar, 1799 -1870 (Beckersche Buchhandlung, 1832)

Science - American Association for the Advancement of Science. ([s.n.], 1883)

Science - American Association for the Advancement of Science. ([s.n.], 1884)

Science - American Association for the Advancement of Science. ([s.n.], 1893)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1895)

Scientific illustrations and symbols : moral truths mirrored in scientific facts - Thomas, David Morgan, 1841 - (R.D. Dickinson, 1886)

Séance Publique de l'Académie des Sciences, Arts et Belles-Lettres de Dijon - Académie des sciences, arts et belles lettres de Dijon (France) (Académie des Sciences, Arts et Belles-Lettres de Dijon, 1835)

The serpents of Pennsylvania - Surface, H. A. (Harvey Adam), 1867 -1941 (Harrisburg Publishing Co, 1906)

The serpents of Pennsylvania - Surface, H. A. (Harvey Adam), 1867 -1941 (Harrisburg Publishing Co, 1906)

The serpents of Pennsylvania - Surface, H. A. (Harvey Adam), 1867 -1941 (Harrisburg Publishing Co, 1906)

The serpents of Pennsylvania - Surface, H. A. (Harvey Adam), 1867 -1941 (Harrisburg Publishing Co, 1906)

Serpents of the northeastern states; a guide to the venomous and non-venomous species of the North Atlantic and New England areas - Ditmars, Raymond Lee, 1876 -1942 (New York Zoological Society, 1935)

Serpents of the northeastern states; a guide to the venomous and non-venomous species of the North Atlantic and New England areas - Ditmars, Raymond Lee, 1876 -1942 (New York Zoological Society, 1935)

Sexual size differences in reptiles - Fitch, Henry S. (Henry Sheldon) 1909 -2009 (University of Kansas, 1981)

Sexual size differences in reptiles - Fitch, Henry S. (Henry Sheldon) 1909 -2009 (University of Kansas, 1981)

A sketch of the natural history of the District of Columbia together with an indexed edition of the U.S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 (H.L. & J.B. McQueen, Inc, 1918)

A sketch of the natural history of the District of Columbia together with an indexed ed. of the U. S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 ([Press of H. L. & J. B. McQueen, inc.], 1918)

A sketch of the natural history of the District of Columbia together with an indexed edition of the U.S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 (H.L. & J.B. McQueen, Inc, 1918)

A sketch of the natural history of the District of Columbia together with an indexed ed. of the U. S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 ([Press of H. L. & J. B. McQueen, inc.], 1918)

A sketch of the natural history of the District of Columbia together with an indexed edition of the U.S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 (H.L. & J.B. McQueen, Inc, 1918)

A sketch of the natural history of the District of Columbia together with an indexed edition of the U.S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 (H.L. & J.B. McQueen, Inc, 1918)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1860)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1860)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1890)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1968)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1968)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1968)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1976)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1980)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1980)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1980)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1980)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1983)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1983)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1983)