16 resultados para source water protection

em Biodiversity Heritage Library, United States

Assessing human health risks from chemically contaminated fish and shellfish : a guidance manual / U.S. Environmental Protection Agency, Office of Marine and Estuarine Protection, Office of Water Regulations and Standards.

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Synopsis of the Naiades : or pearly fresh-water mussels / by Charles Torrey Simpson.

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Synopsis of the fresh-water rhizopods / A condensed account of the genera and species founded upon Prof. Joseph Leidy's "Freshwater rhizopods of North America" / Comp. by Romyn Hitchcock.

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Shells of land and water; a familiar introduction to the study of the mollusks.

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The life of inland waters; an elementary text book of fresh-water biology for American students, by James G. Needham ... and J.T. Lloyd ...

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On germinal selection as a source of definite variation, by August Weismann, tr. from the German by Thomas J. McCormack.

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Fresh-water Algae of the United States; (exclusive of the Diatomaceae) complemental to Desmids of the United States ... One hundred and fifty-one plates ... including nine additional plates of desmids. By the Rev. Francis Wolle ...

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British fresh-water algae, exclusive of Desmidieae and Diatomaceae, by M. C. Cooke.

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British fresh-water algae, exclusive of Desmidieae and Diatomaceae, by M. C. Cooke.

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Fresh-water Algae of the United States; (exclusive of the Diatomaceae) complemental to Desmids of the United States ... One hundred and fifty-one plates ... including nine additional plates of desmids. By the Rev. Francis Wolle ...

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Revision of the deep-water mollusca of the Atlantic coast of North America, with descriptions of new genera and species. by Addison E. Verrill and Katharine J. Bush.

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Monography of the family Unionidæ, or, Naiades of Lamarck (fresh water bivalve shells) of North America ... By T. A. Conrad.

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Drops of water : their marvelous and beautiful inhabitants displayed by the microscope / by Agnes Catlow.

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Water reptiles of the past and present / by Samuel Wendell Williston.

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Saving bays and estuaries : a primer for establishing and managing estuary projects / Office of Marine and Estuarine Protection, U.S. Environmental Protection Agency.

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