MPG.eBooks - Search Results - "Pennsylvania"

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1

Abstract of Professor Johnson's report to the secretary of the Navy, of the United States, respecting Forest Improvement coal

by Johnson, Walter Rogers
Published 1845

G.F. Nesbitt

Subjects: “...Anthracite coal / Pennsylvania...”

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2

Report of a survey and exploration of the coal and ore lands belonging to the Allegheny Coal Company, in Somerset County, Pennsylvania...

by Johnson, Walter Rogers
Published 1841

[s.n.]

Subjects: “...Mines and mineral resources / Pennsylvania / Somerset County...”

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3

Report of an examination of the Bear Valley coal district : in Dauphin County, Pennsylvania

by Johnson, Walter Rogers
Published 1841

[s.n.]

Subjects: “...Anthracite coal / Pennsylvania / Dauphin County...”