The Permian or Upper Carboniferous Flora - Of West Virginia and S.W. Pennsylvania is an unchanged...

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may conta...

Reprint of the original, first published in 1883.

Reprint of the original, first published in 1883.

Reprint of the original, first published in 1881.

Reprint of the original, first published in 1881.

Reprint of the original, first published in 1881.

Reprint of the original, first published in 1881.

The Geology of Pike and Monroe Counties

The Geology of Pike and Monroe Counties

The Geology of Susquehanna County and Wayne County

Discover the ins and outs of the petroleum and natural gas industries with this detailed guide. C...

This comprehensive study of the geology of Huntingdon County, Pennsylvania, is an authoritative g...

Petroleum and Natural Gas, Precise Levels

The Geology of the Susquehanna River Region in the Six Counties of Wyoming, Lackawanna, Luzerne, ...

This geological survey of Lawrence County provides a detailed examination of the composition and ...

This comprehensive study of the geology of Huntingdon County, Pennsylvania, is an authoritative g...

Stratigraphy of the Bitmuninous Coal Field of Pennsylvania, Ohio and West Virginia

This geological survey of Lawrence County provides a detailed examination of the composition and ...

A comprehensive study of the geological features of a scenic and historically significant region ...

This seminal work by Israel Charles White remains a definitive reference on the geology and strat...