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 ...
Series: Library of American civilization -- LAC 12659.
Publisher: A. Small
Published: 1970
Place of publication: Philadelphia
Language: eng
Format: Microform
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.

Microfiche. Chicago : Library Resources, 1970. 1 microfiche ; 8 x 13 cm. (Library of American civilization ; LAC 12659)