Contributions to geology

Isaac Lea

A synopsis of the family of Naiades

Isaac Lea

A synopsis of the family Unionidae

Isaac Lea

The published writings of Isaac Lea, LL. D

Newton Pratt Scudder

Fossil foot-marks in the red sandstone of Pottsville, Pa

Isaac Lea

Observations on the genus Unio

Isaac Lea

On the fossil foot-marks in the red sandstone of Pottsville, Pennsylvania

Isaac Lea

Correspondence

Isaac Lea

The Bravo V2

Isaac Lea

A synopsis of the family Naiades

Isaac Lea

Description of six new species of the genus Unio, embracing the anatomy of the oviduct of one of them

Isaac Lea

Remarks on the number of Unionidae [and] Descriptions of ... new species ...

Isaac Lea

Description of a new genus (Trypanostoma) of the family Melanidæ, and of forty-five new species ...

Isaac Lea

Works of Isaac Lea

Isaac Lea

Further notes on "inclusions" in gems, etc

Isaac Lea

Description of a new genus of the family Melaniana

Isaac Lea

Description of a new species of the genus Unio

Isaac Lea

... Description of nineteen new species of Colimacea

Isaac Lea

Rectification of Mr. T. A. Conrad's "Synopsis of the family of N̲a̲i̲a̲d̲e̲s̲ of North America,"

Isaac Lea

A synopsis of the family of Naïades

Isaac Lea

Family Unionidæ

Isaac Lea

Catalogue of [his] published works from 1817 to 1876

Isaac Lea

Contributions to Geology

Isaac Lea

Notice of the Oolitic formation in America

Isaac Lea