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geo h ashley

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A high-grade building stone in Greene County

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1920

Building stones

Geology of oil and gas in relation to coal

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1920

Petroleum / Natural gas / Coal mines and mining

Feldspar in Pennsylvania

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1921

Feldspar

Future use of raw coal

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1922

Coal mines and mining

Effect of the war on the price of coal in Pennsylvania

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1919

Coal mines and mining

Development and probable life of gas pool at McKeesport, Pennsylvania

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1919

Natural gas

Future sources of power

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1920

Power resources

Decline of McKeesport gas pool

Ashley, Geo. H. · Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1919

Natural gas

Geology of the Paleozoic area of Arkansas south of the novaculite region

Ashley, Geo. H. · Leland Stanford University

318 sayfa · 1897

Geology / Geology, Stratigraphic / Stratigraphic Geology

The oil and gas fields of Pennsylvania

Ashley, Geo. H. · Dept. of Internal Affairs, Bureau of Topographic and Geological Survey

Sayfa sayısı yok · 1922

Petroleum / Natural gas

Outline introduction to the mineral resources of Tennessee

Ashley, Geo. H. · Folk-Keelin printing company

65 sayfa · 1910

Mines and mineral resources

GeologyRhode Island coalAshley, Geo. H.

Rhode Island coal

Ashley, Geo. H. · Govt. Print. Off.

62 sayfa · 1915

Coal / Analysis / Geology

Mineral industries Pennsylvania.The story of the Pennsylvania surveyAshley, Geo. H. (George Hall), b. 1866.

The story of the Pennsylvania survey

Ashley, Geo. H. (George Hall), b. 1866. · Pennsylvania Bureau of Topographic and Geologic Survey

22 sayfa · 1921

Pennsylvania. Bureau of Topographic and Geologic Survey / Mines and mineral resources Pennsylvania / Mineral industries Pennsylvania.

Mines and mineral resourcesPunxsutawney quadrangleAshley, Geo. H.

Punxsutawney quadrangle

Ashley, Geo. H. · Yayınevi bilinmiyor

145 sayfa · 1926

Geology / Mines and mineral resources

Mines and mineral resourcesCurwensville quadrangleAshley, Geo. H.

Curwensville quadrangle

Ashley, Geo. H. · Department of internal affairs, Topographic and geologic survey

141 sayfa · 1940

Geology / Mines and mineral resources

Pennsylvania -- Description and travelThe scenery of PennsylvaniaAshley, Geo. H. (George Hall), 1866-1951

The scenery of Pennsylvania

Ashley, Geo. H. (George Hall), 1866-1951 · Pennsylvania Topographic and Geologic Survey

102 sayfa · 1933

Pennsylvania -- Description and travel

GeologyThe emergence of ideas as illustrated from geologyAshley, Geo. H.

The emergence of ideas as illustrated from geology

Ashley, Geo. H. · Yayınevi bilinmiyor

56 sayfa · 1937

Geology

TestingAn illustration of the flexure of rockAshley, Geo. H.

An illustration of the flexure of rock

Ashley, Geo. H. · Sine nomine

324 sayfa · 1893

Rock mechanics / Rocks / Fatigue / Testing

Natural resourcesA brief summary of the resources of TennesseeAshley, Geo. H.

A brief summary of the resources of Tennessee

Ashley, Geo. H. · [Brandon]

40 sayfa · 1911

Mines and mineral resources / Economic conditions / Natural resources

Pennsylvania. Bureau of Topographic and Geologic SurveyA quarter century of progressAshley, Geo. H.

A quarter century of progress

Ashley, Geo. H. · Dept. of internal affairs, commonwealth of Pennsylvania

10 sayfa · 1944

Mines and mineral resources / Pennsylvania / Pennsylvania. Bureau of Topographic and Geologic Survey

Mines and mineral resourcesThe undeveloped mineral resources of PennsylvaniaAshley, Geo. H.

The undeveloped mineral resources of Pennsylvania

Ashley, Geo. H. · Department of internal affairs, Topographic and geologic survey

16 sayfa · 1933

Mines and mineral resources

Coal mines and miningThe valuation of public coal landsAshley, Geo. H.

The valuation of public coal lands

Ashley, Geo. H. · Government Printing Office

75 sayfa · 1910

Coal / Coal mines and mining

GeologyGeology and mineral resources of part of the Cumberland Gap coal field, KentuckyAshley, Geo. H.

Geology and mineral resources of part of the Cumberland Gap coal field, Kentucky

Ashley, Geo. H. · Govt. Print. Off.

239 sayfa · 1906

Mines and mineral resources / Coal mines and mining / Geology

BibliographyA syllabus of Pennsylvania geology and mineral resourcesAshley, Geo. H.

A syllabus of Pennsylvania geology and mineral resources

Ashley, Geo. H. · Department of internal affairs, Topographic and geologic survey

160 sayfa · 1931

Geology / Mines and mineral resources / Bibliography

GeologyPennsylvanian cycles in PennsylvaniaAshley, Geo. H.

Pennsylvanian cycles in Pennsylvania

Ashley, Geo. H. · Yayınevi bilinmiyor

245 sayfa · 1931

Sedimentation and deposition / Stratigraphic Geology / Geology

GeologyCannel coal in the United StatesAshley, Geo. H.

Cannel coal in the United States

Ashley, Geo. H. · Govt. Print. Off.

127 sayfa · 1918

Coal / Coal mines and mining / Coal reserves / Cannel coal / Geology

GeologyThe Neocene of the Santa Cruz MountainsGeo. H. Ashley

The Neocene of the Santa Cruz Mountains

Geo. H. Ashley · Leland Stanford jr. university

367 sayfa · 1895

Stratigraphic Geology / Geology

Mineral industriesThe Pennsylvania survey, l9l9-1922Geo. H. Ashley

The Pennsylvania survey, l9l9-1922

Geo. H. Ashley · Pennsylvania] Bureau of Topographic and Geologic Survey

18 sayfa · 1923

Mines and mineral resources / Mineral industries