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By: Maryland Geological Survey. - Bauer, L. A. (Louis Agricola), - Bonsteel, Jay A. (Jay Allan), - Grover, Nathan Clifford, - Meil, Clayton Dissinger. - Miller, Benjamin L. - Shattuck, George Burbank, - Von Herrmann, Charles F.Edition:Publication info: Baltimore, The Johns Hopkins Press, 1907Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections: