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Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1894)

Scientific news for general readers; a popular illustrated weekly journal of science (1888)

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Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1999)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 2000)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 2006)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1875)

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