A Genth F

The Minerals And Mineral Localities Of North Carolina, Being Chapter I, Of The Second Volume Of The Geology Of North Carolina

Second Preliminary Report On The Mineralogy Of Pennsylvania, By F. A. Genth. With Analyses Of Mineral Spring Waters.

Preliminary Report On The Mineralogy Of Pennsylvania, By F. A. Genth. With An Appendix On The Hydrocarbon Compounds, By Samuel P. Sadtler.