General Contents - St Genevieve County Perry County Clay Notes of H.A. Wheeler Sept. 1893 [cover title does not match contents]: Stratigraphy - Bethany Falls, Burlington Limestone, Crinoidal Limestone, [Graydon Conglomerate], Keokuk: Minerals - gypsum, limestone, pyrite, sphalerite, sulfur: Lithologies - bituminous shale, chert, clay, coal, conglomerate, dolomite, porphyry (extrusive igneous), sandstone, shale: Mines/quarries - coal shafts, coal drifts, coal pits, limestone quarries, clay pits; numerous coal mining companies and individual shaft names: Paleontology - bryozoans, corals, crinoids, orthis, plants, productids, spirifers, sponges, others noted; primarily only general names, a few noted by species: Hydrology - mineral spring, [...]
