48 books • 2 series
The Complete Writings of Thomas Say, on the Conchology of the United States (Classic Reprint)
The Complete Writings of Thomas Say on the Entomology of North America, Vol. 2 (Classic Reprint)
The Complete Writings of Thomas Say on the Entomology of North America, Vol. 1 (Classic Reprint)
American Entomology, or Descriptions of the Insects of North America. - Scholar's Choice Edition
Account of an Expedition from Pittsburgh to the Rocky Mountains, Volume 3 - Primary Source Edition
American Conchology; Or, Description of the Shells of North America ... - Primary Source Edition