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"Without Doubt the Most Accurate": UNDERGROUND SURVEYING AND THE DEVELOPMENT OF MINING ENGINEERING IN THE PENNSYLVANIA ANTHRACITE REGION

Eric Nystrom
Pennsylvania Legacies
Vol. 9, No. 2 (NOVEMBER 2009), pp. 20-25
Stable URL: http://www.jstor.org/stable/27765171
Page Count: 6
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"Without Doubt the Most Accurate": UNDERGROUND SURVEYING AND THE DEVELOPMENT OF MINING ENGINEERING IN THE PENNSYLVANIA ANTHRACITE REGION
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