Geological survey of Illinois
Authority of Legislature of Illinois
Authority of Legislature of Illinois 1868 Geological survey of Illinois v. 3
所蔵館1館
assistants, J.D. Whitney, Leo Lesquereux, Henry Engelmann
Authority of Legislature of Illinois 1866 Geological survey of Illinois v. 1
descriptions of vertebrates by J.S. Newberry and A.H. Worthen ; descriptions of invertebrates by F.B. Meek and A.H. Worthen ; descriptions of plants by Leo Lesquereux
Authority of Legislature of Illinois 1866 Geological survey of Illinois v. 2