Geological Survey of Ohio, Parts 1-3

Alumina analyses beds bituminous Black Slate blue clay Blue Limestone bowlders brine Carbonate of lime Carbonate of magnesia cent channel chief geologist city ledge clay shale Clinton coal measures coke color conglomerate contain Dayton district Duck creek farm feet thick Fire clay fixed carbon Flint Ridge formation fossils furnace Geological Survey gravel Green township grouped sections Hocking county Hocking river horizon inches thick land layers limestone Logan sandstone lower manufacture map of grouped materials Maxville Maxville limestone miles mined mineral Muskingum county Nelsonville Nelsonville seam Newton township Niagara nodules obtained Ohio river Perry county portion Prof Putnam Hill limestone quantity quarries reported rocks Salt Lick township sand sandrock sandstone sandy shales Scioto seam of coal seen siderite Silica Straitsville strata stratum sulphur Sunday creek surface terraces tion upper Waverly Ward township Waverly Waverly sandstone Wormley Zanesville