Cubberley, Ellwood P., 1868-1941Relation of Trenton rock to sea level shown with shading and contour lines. Map showing paths of the geological cross sections depicted in the illustrations of tables I-XVI in the 18th Annual report (1893) / Indiana. Department of Geology and Natural Resources. Detached from: Indiana's structural features as revealed by the drill / E. P. Cubberley. In Indiana Department of Geology and Natural Resources eighteenth annual report ... 1893. Indianapolis: Wm. B. Burford, 1894. Page 221.Imprint: Indpls : lithographed by William B. Burford, [1894]; Imprint: [Indianapolis] : [Indiana, Dept. of Geology and Natural Resources], [1894]Dimensions: 15 x 23 cmJPEGG4091.C57 1893 .C83engIndiana. Department of Geology and Natural ResourcesPublicGeologyMineralsTrenton LimestoneMap showing lines of geological sections and the relation of Trenton rock to sea levelMapsIndiana1894Indiana University