Add to ORKG"Mining methods, by J. W. Harden": p. 396 T4-100 T4."Analyses of Nittany valley iron ores and limestones, by Dr. F. A. Genth and Otto Wuth": p. 385 T4-T4 395.Mode of access: Internet
"This report is one of a series prepared by the Bureau of Mines on methods of mining in various mini...
Folded color map in separate envelope.Part of illustrative matter folded in pocket.Mode of access: I...
Reprinted from Maryland geological survey [report] vo. IX, 1910.Life.Thesis (Ph. D.)--Johns Hopkins ...
Also includes: Mining methods / by J.W. Harden. p. 396-400 T4.Includes: Analysis of Nittany Valley i...
Separate from New HAmpshire, Geological survey, 1868-1878. The geology of New Hampshire, v. 2, p. 27...
"Analyses of coal, cannel, coke, clay, limestone, and ore, from Butler and Beaver counties, Pa., by ...
"Bureau of economic geology and technology. Division of economic geology."Mode of access: Internet
At head of title: Second geological survey of Pennsylvania. Report of progress. F3 1888-1889.Mode of...
Plate printed on both sides.Cover title.Extracted from: Transactions of the American Institute of Mi...
Papers on geology and iron-bearing deposits of eastern Texas and northern Louisiana: p. 109.Mode of ...
At head of title: Second geological survey of Pennsylvania. Report of progress in 1878. QQQ.Mode of ...
Reprinted from the Journal of geology, vol XVI, no. 3, 1908.Thesis (PH. D.)--University of Chicago.M...
Reprinted from School of Mines quarterly, nos. 3 and 4, vol. XXVII, April and July, 1906.Mode of acc...
Reprinted from "Anne Arundel County," published by Maryland Geological survey. 1917.Biography.Thesis...
"September 1949."Cover title.Includes bibliographical references.Mode of access: Internet
"This report is one of a series prepared by the Bureau of Mines on methods of mining in various mini...
Folded color map in separate envelope.Part of illustrative matter folded in pocket.Mode of access: I...
Reprinted from Maryland geological survey [report] vo. IX, 1910.Life.Thesis (Ph. D.)--Johns Hopkins ...
Also includes: Mining methods / by J.W. Harden. p. 396-400 T4.Includes: Analysis of Nittany Valley i...
Separate from New HAmpshire, Geological survey, 1868-1878. The geology of New Hampshire, v. 2, p. 27...
"Analyses of coal, cannel, coke, clay, limestone, and ore, from Butler and Beaver counties, Pa., by ...
"Bureau of economic geology and technology. Division of economic geology."Mode of access: Internet
At head of title: Second geological survey of Pennsylvania. Report of progress. F3 1888-1889.Mode of...
Plate printed on both sides.Cover title.Extracted from: Transactions of the American Institute of Mi...
Papers on geology and iron-bearing deposits of eastern Texas and northern Louisiana: p. 109.Mode of ...
At head of title: Second geological survey of Pennsylvania. Report of progress in 1878. QQQ.Mode of ...
Reprinted from the Journal of geology, vol XVI, no. 3, 1908.Thesis (PH. D.)--University of Chicago.M...
Reprinted from School of Mines quarterly, nos. 3 and 4, vol. XXVII, April and July, 1906.Mode of acc...
Reprinted from "Anne Arundel County," published by Maryland Geological survey. 1917.Biography.Thesis...
"September 1949."Cover title.Includes bibliographical references.Mode of access: Internet
"This report is one of a series prepared by the Bureau of Mines on methods of mining in various mini...
Folded color map in separate envelope.Part of illustrative matter folded in pocket.Mode of access: I...
Reprinted from Maryland geological survey [report] vo. IX, 1910.Life.Thesis (Ph. D.)--Johns Hopkins ...