Symzonia: A Voyage of Discovery (1820 novel)

Symzonia: A Voyage of Discovery is a book of unknown authorship, credited in the text to an Adam Seaborn, a captain who leads a voyage of exploration to Antarctica and into the hollow earth. The first edition was printed by Jonathan Seymor of 49 John Street, New York [City] in 1820.

Synopsis
Though sometimes, curiously, attributed to John Cleves Symmes himself, Symzonia was more often taken to be a ridiculing of Symmes's theory about the hollow earth, not a book written in support of it. More likely candidates for the authorship have been suggested as Nathaniel Ames[L] and Washington Irving.[S]