Author

John Collins Warren

2 free books by John Collins Warren, free to read online. Chapter 1 of any book is free, no account needed.

Writes aboutPaleontology -- Connecticut River Valley Heart -- Diseases Footprints, Fossil -- Connecticut River Valley

Cases of Organic Diseases of the Heart

Cases of Organic Diseases of the Heart

John Collins Warren

Remarks on some fossil impressions in the sandstone rocks of Connecticut River

Remarks on some fossil impressions in the sandstone rocks of Connecticut River

John Collins Warren