1. Aboriginal remains near Old Chickasaw, Iowa Author(s): Webster, Clement L., author Publication: [Philadelphia?] : [publisher not identified], [1889?] Subject(s): PaleontologyIndians, North AmericanCemeteriesIowa
2. Notes on the geology of Johnson County, Iowa Author(s): Webster, Clement L., author Publication: [New York?] : [publisher not identified], [1888?] Subject(s): Geological PhenomenaIowa
