Flood Plain Sediments of Halfmoon Creek, Pennsylvania; Commerical Possibilities of Some Cambrian and Ordovician Limestones and Dolomites in Blair and Centre Counties, Pennsylvania; Application of Statistical Methods in Prospecting for High-Alumina Clay Public

Bulletin of the Mineral Industries Experiment Station Number 77

Flood Plain Sediments of Halfmoon Creek, Pennsylvania; Commerical Possibilities of Some Cambrian and Ordovician Limestones and Dolomites in Blair and Centre Counties, Pennsylvania; Application of Statistical Methods in Prospecting for High-Alumina Clay

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