Observations on the geology of the United States of America
Subtitle: with some remarks on the effect produced on the nature and fertility of soils, by the decomposition of the different classes of rocks; and an application to the fertility of every state in the Union, in reference to the accompanying geological map ...
By: By William Maclure.
Publisher: Printed for the author by A. Small
Published: 1817
Place of publication: Philadelphia
Language: eng
Number of pages: 127
Subjects: Geology -- United States.
Notes: Read as a memoir before the American philosophical society, and inserted in the first volume of their Transactions, new series.