Annual Report for ... with Accompanying Papers, Τόμος 24

air-dried alluvium Anamosa bluff bowlders Buchanan gravels buff calcareous calcite Cedar Valley cement cent chert City clay coarse color compact corner of section creek cross-bedded crushed stone Decorah deposits Devonian Dolomite Dubuque east evenly bedded exposed exposure feet in thickness fine-grained flood plain fossiliferous gravel and sand gray heavy beds hills inches in thickness indurated Iowa Iowa coals Iowan iron-stained Kansan Keokuk layers ledges lime Lime creek Limestone located loess Louis limestone lower magnesian Maquoketa material Moines river moisture moraine Niagaran northeast northwest oölite opened outcrops pebbles places Platteville quantities quarry quarter of section Railway River Sand road and concrete rock Saint Louis sample sand and gravel sandstone shale shaly Shell Rock river shows Sioux Skunk river soil southeast southwest quarter stream subcrystalline sulphur Terrace Sand thin town township twenty feet Union township upland upper vicinity Wapsipinicon weathered Winneshiek county Wisconsin drift yellow