Report of Progress

3rd oil sand Allegheny river Barometric elevations base Beaver beneath Berea blue shale bluff boring bottom Carll Chemung cliffs coarse Concealed to level Conneaut creek Conneaut lake corner Corry Sandstone county line Crawford county Cross roads Cussewago creek Cussewago sandstone deposit depth Drift drilled Elk creek Erie county exposed exposures feet flaggy sandstone flows Forks of road fossils French creek fucoids Girard shale hill horizon Lake Erie land layers level of French massive Meadville Lower Limestone Meadville Upper Limestone Mercer county mile north miles south miles west Mill northern line northward Ohio Oil creek Orangeville shale outcrop petroleum Portage quarry rock ravine Report Riceville river sandy School House Sharon coal Sharon Conglomerate Sharpsville Sharpsville Lower Sandstone Sharpsville Sandstone Sharpsville Upper shells Shenango Sandstone slate southern stone stratum stream Summit surface thick thin Third Oil Sand tide Titusville valley Venango county Venango Oil Warren county