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A. S. McCreath abandoned and full alumina analyzed Anchor cement anticlinal apparently Ballietsville barrels beds black clay bottom bowlders brown hematite Catasauqua centim cleavage close color containing Coplay Crane Iron Creek damourite slate deposit dump Emaus Iron excavation feet thick Ferric oxide ferrous Fogelsville formation formed fossils full of water Geological gneiss Guth's hill Huckleberry Ridge Hudson River slates inch Insoluble residue Ironton Railroad kilns Kline's latter leased Lehigh county Lehigh river Lehigh Valley railroad Little Lehigh Creek little white clay lump Magnesia Magnesian limestone Manganese mile mines Northampton county occurs Old Lehigh Cement outcrops overlying Pennsylvania Phosphorus portion Portland cement postage Potsdam sandstone Price in paper quarry Report of Progress Samples seen shafts sides Silica Siluro-Cambrian limestone South Mountain southeast dip specimens stone Sulphur sunk surface soil Survey synclinal synclinal structure tensile Thomas Iron Trenton limestone visited washed Wenner's west end yellow clay
Page iv - JOHN H. DEWEES — Geologist in charge of the Survey of the Fossil Ore belts of the Juniata country. FRANKLIN PLATT— Geologist in charge of the Survey of Clearfield, Jefferson, Cambria, Somerset, Blair, &c., &c.