A memoir on the geological position of a fossil tree
Subtitle: discovered in the secondary rocks of the river Des Plaines.  Read before the American geological society.
By: By Henry R. Schoolcraft.
Publisher: Printed by E. and E. Hosford
Published: 1822
Place of publication: Albany
Language: eng
Number of pages: 18
Subjects: Geology -- Illinois.; Paleobotany -- Illinois.; Trees, Fossil.