Observations on the Geology of the United States of North America

With Remarks on the Probable Effects that May be Produced by the Decomposition of the Different Classes of Rocks on the Nature and Fertility of Soils: Applied to the Different States of the Union, Agreeably to the Accompanying Geological Map

• Author(s): William Maclure,
• Publisher: A. Small
• Pages: 91
• Language: en