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THE JOURNAL OF GEOLOGY.
    • The Eozoic and Lower Paleozoic in South Wales and their Comparison with their Appalachian Analogues.18 pp.—Am. Inst. Min. Engin., Feb., 1883.
    • Geological and Mineral Studies in Nuevo Leon and Coahuilla, Mexico.36 pp., Ill, and maps.—Am. Inst. Min. Engin., Feb., 1884.
    • Trap Dykes in the Archaean Rocks of Southeastern Pennsylvania.4 pp.—Am. Phil. Soc., Oct. 17, 1884.
    • Classification of Coals.22 pp.—Trans. Am. Inst. Min. Engin., Vol. VI, 1879.
    • Descriptive Table of Elements.2 pp.—1891.
    • The late International Geological Congress at Berlin.4 pp.—Am. Phil. Soc'y, Nov. 20, 1885.
    • Report of the American Committee of the International Congress of Geologists.5 pp.—Proc. A. A. A. S., Vol. XXXV, August, 1886.
    • General Notes on the Geology of York County, Penn.20 pp.—Colored maps.
    • On the Physical and Chemical Characteristics of a Trap occurring at Williamson's Point, Penn.8 pp., 1 colored plate.Read before Am. Phil. Soc'y, Dec. 20, 1878.
    • An Hypothesis of the Structure of the Copper Belt of the South Mountain.4 pp., Ill.—Trans Am. Inst. Min. Engin., June, 1883.Read at the Roanoke, Va., Meeting.
    • A Broader Field for the U. S. Geological Survey.4 pp.—Journ. Franklin Instit., Sept., 1888.
    • The Peach Bottom Slates of the Lower Susquehanna, with sections of the Right and Left Banks.5 pp., 3 pl.—Am. Inst. Min. Eng., Oct., 1883.
    • Reply to a paper entitled "Notes on the Geology of Chester Valley and Vicinity."8 pp.—Journ. Franklin Inst., April, 1884.
    • Mr. Theodore D. Rand's Criticism of Vol. C4 Geology of Chester County, Penn.6 pp.—Journ. Franklin Inst., Oct., 1883.
    • Archaean Characters of the Rocks of the Nucleal Ranges of theAntilles.1 p.—Brit. Assn., 1888.
    • Notes on Fresh-Water Wells of the Atlantic Beach.4 pp.—Journ. Franklin Inst., Sept., 1890.
    • The Position of the American New Red Sandstone.8 pp.—Trans. Am. Inst. Min. Engin., Vol. V.
    • On the Traps of the Mesozoic Sandstone in York and Adams Counties, Penn.13 pp., 4 pl.—Am. Phil. Soc'y, April 16, 1875.
    • The Whopper Lode, Gunnison County, Colo.10 pp.—Am. Inst. Min. Engin., Aug., 1880.
    • Some Copper Deposits of Carroll County, Md.8 pp., 1 pl.—Am. Inst. Min. Engin., Aug., 1880.
    • A Convenient Device to be Applied to the Hand Compass.1 p.—Am. Phil. Soc'y, Dec. 5, 1884.
    • The Approaches to a Theory of the Causes of Magnetic Declination.16 pp.—Am. Phil. Soc'y, Apr. 6, 1877.
    • On Improvement in the Construction of the Hypsometric Aneroid.—Am. Phil. Soc'y, March 2, 1883.
    • An Exfoliation of Rocks near Gettysburg.2 pp.—Am. Phil. Soc'y, Dec. 4, 1874.
    • Note on the New Geological Map of Europe.6 pp.—Trans. Am. Inst. Min. Engin.
    • Some Supposed Fossils from the Susquehanna River, just South of the Pennsylvania-Maryland Line.3 pp., 1 pl.—Proc. Am. Phil. Soc'y XVIII, Sept. 18, 1879.
    • Missing Ores of Iron.12 pp., Ill.—Trans. Am. Inst. Min. Engin., Vol. VI, 1879.
    • The Peach Bottom Slates of Southeastern York and Southern Lancaster Counties, Penn.5 pp., 1. pl.—Trans. Am. Inst. Mining Engin., 1883.
    • A Speculation on Protoplasm.7 pp.—Am. Nat., July, 1876.
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