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By: National Museum of Natural History (U.S.) Pacific Ocean Biological Survey Program - Clapp, Roger B. - Clapp, Tina AbbottEdition:Publication info: 1965Volume:Series:Holding Institution: Smithsonian Institution ArchivesSubjects: Birds--United States District of Columbia Field notes Herpetology Ornithology Potomac River Reports Research notes Snakes--United States United States Western rat snakeBHL Collections: Smithsonian Field Books collection