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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
Structure Map of the Wissahickon Schist at Philadelphia
Index Map For Specimens of Wissahickon Schist of Philadelphia
Upper Cretaceous Foraminifera from the Marine Formations along the Chesapeake and Delaware Canal
The Wissahickon Schist At Philadelphia Showing Areal Geology, Metamorphic Zones and Numbered Localities
Stratigraphy and Metamorphism of the Wissahickon Formation in Southeastern Chester County, Pennsylvania
Aeromagnetic Map of Wilmington, Delaware Area and Adjacent Parts
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
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
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
Stratigraphy and Metamorphism of the Wissahickon Formation in Southeastern Chester County, Pennsylvania
Wissahickon Formation in Southeastern Chester County, Pennsylvania
Metamorphic and Fluid Inclusion Study of Amphibolite-grade Rocks
Report on Field Work in the Area Between Mill Creek, LaFayette and Gladwyne
Structural Petrology of the Wissahickon Schist Near Philadelphia, Pennsylvania
Petrology and Metamorphism in the Marcus Hook Quadrangle, Southeastern Pennsylvania
Petrology and Metamorphism in the Marcus Hook Quadrangle, Southeastern Pennsylvania
Report on Field Work in the Area Between Mill Creek, LaFayette and Gladwyne
Report on Field Work in the Area Between Mill Creek, LaFayette and Gladwyne
Report on Field Work in the Area Between Mill Creek, LaFayette and Gladwyne

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