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

The Potomac or younger Mesozoic flora is an unchanged, high-quality reprint of the original editi...

Reprint of the original, first published in 1883. The Antigonos publishing house specialises in t...

Reprint of the original, first published in 1889. The Antigonos publishing house specialises in t...

Resources of West Virginia is an unchanged, high-quality reprint of the original editionof 1876...

Reprint of the original, first published in 1883. The Antigonos publishing house specialises in t...

Reprint of the original, first published in 1889. The Antigonos publishing house specialises in t...