Proceedings

2d series Abstract Academy of Sciences Arizona basalt Basin beds Berkey Bulletin California Cambrian Canada Canyon Carboniferous cephalopods Chairman CHARLES CHARLES PALACHE coal conglomerate correlation Council County Cretaceous December Denison University deposits Died July Died Nov eastern Economic Geology Eocene erosion fault fauna feet field flora formation fossils genus Geological Committee Geological Society project Geological Survey Geologist GEORGE glacial granite Helicoprion Iowa JOHN Karpinsky Karpinsky's Kentucky lava limestone lower Memoirs minerals Mining Miocene Mountains Museum Nevada northern Obituary Ohio Ontario Ordovician paleontology Paleozoic papers Penrose Medal Petersburg Mineralogical Society Pleistocene Pliocene pre-Cambrian present President Proceedings Professor Range Read by title region River rocks Russian Academy sandstone sediments session shale Silurian Society of America Soil southern species strata stratigraphic structure Tertiary tion Triassic unconformity United States Geological Upper Urals Valley volcanic volume Washington western WILLIAM zone