Title: Relation of the Wissahickon mica-gneiss to the Shenandoah limestone and to the Octoraro mica-schist, of the Doe Run-Avondale district, Coatesville, quadrangle, Pennsylvania ..
First published: 1914
Subjects: Petrology, Gneiss, Limestone
Places: Pennsylvania
LC classification: QE475 .K73 1912