Lea, Isaac; Contributions to Geology. Philadelphia, 1833. Octavo, pp. vi, 227, 6 plates (partially colored of fossil shells).

The text is complete and in a recent full calf, owner's stamp on title page, very good.

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The above work is the rare original printing of Lea's classic studies on newly described Tertiary fossils and formations of Alabama, New Jersey, New York and Maryland. The work contains: Tertiary Formations of Alabama; New Tertiary Fossil Shells from Maryland and New Jersey; New Genera of Fossil Shell from New Jersey; Tufaceous Lacustrine Formation of Syracuse, Onondoga County, New Jersey. Lea's "Contributions to Geology" was the best illustrated paleontological work that had appeared in the United States up to this time.