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The inferior surface of the trilobite discovered : illustrated with coloured models

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By: Green, Jacob, - Dobson, Judah,

Publication info: Philadelphia, Published by Judah Dobson, 1839

Holding Institution: Smithsonian Libraries and Archives

BHL Collections: Unearthed! Smithsonian Libraries' Paleo Collection
New fresh water shells of the United States : with coloured illustrations, and a monograph of the genus anculotus of Say; also a synopsis of the American naiades

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By: Conrad, T. A. (Timothy Abbott), - Say, Thomas, - Conrad, T. A. (Timothy Abbott), - Brown, Mannevillette Elihu Dearing, - Dobson, Judah, - Dorsey, E. G., - Childs & Lehman,

Publication info: Philadelphia, Judah Dobson, 108 Chesnut Street. E.G. Dorsey, printer, 1834

Holding Institution: Multiple institutions