This thesis examines the hollow-earth theories of John Cleves Symmes and seeks to recognise and restore both his memory and his legacy. I outline Symmes’ theory that the Earth is hollow and habitable within, and accessible via holes at the North and South Poles, consider the impact of this theory on the commencement of the United States Antarctic Exploration program, and demonstrate its lasting legacy within the genre of Symmesian hollow-earth fiction. Previous scholarship has been intermittent, disparate and oddly contextualised, often assigning both Symmes and his theory to the world of the “weird and wonderful.” In order to study Symmes’ legacy, I synthesise previous scholarship and show the continuing presence of his theory – at times unrecognised and unacknowledged – in fiction. Commencing with a description of the series of publications in which Symmes publicised his idea, this thesis looks at his theory’s reception, with a discussion of several books and letters published in response to the theory – from contemporary times through to the current day. In determining the legacy of his theory, rather than the theory itself, I look at possible and probable sources for Symmes’ idea, and place it on the continuum of natural philosophy and science from the thirteenth century so as to set Symmes’ announcement in the perspective of its time. I then address Symmes’ influence on the United States Congress, which culminated in the United States Exploring Expedition of 1838-1842. Finally, I examine Symmes’ legacy in fiction, commencing with an extensive discussion of Symzonia, which some posit was authored by Symmes, and continuing through to the present. I find that while Symmes’ theory, and the ensuing debate about a hollow earth, may have advanced the speed with which the United States commenced Antarctic exploration, with time this exploration would probably have happened anyway. His greatest legacy is through the establishment of a body of hollow-earth fiction based around the fictional hole which now bears his name; “Symmes’ Hole” lives on in literature to the current day.

This study examines a small body of 19th-century American literature about the Antarctic: Adam Seaborn's (pseud.) Symzonia (1820), Edgar Allan Poe's "MS. Found in a Bottle" (1833) and The Narrative of Arthur Gordon Pym (1838), Peter Prospero's (pseud.) "The Atlantis" (1838-39), and James Fenimore Cooper's The Monikins (1835) and The Sea Lions (1849). These were written in a transitional phase in the history of the Antarctic. At the start of the period, the region was almost completely unknown. Towards the end of the period, however, the region had been mapped in its essence, and the existence of an Antarctic continent had been verified. For complex reasons, the region came into cultural focus in the U.S. during the 1820s to 40s, culminating in the first major American scientific expedition in 1838-42 to explore the South Seas and the Antarctic. The study is primarily historical, tracing ideas to their historical contexts in order to determine what these authors used the unknown space of the Antarctic for. These texts were written in imaginative response to contemporary notions of the Antarctic, which is reflected in the mode of representation. The literature is in the mode of speculative fiction-most of texts imagining a tropical, inhabited Antarctic-up until the region is explored, at which point it turns to realism. The texts fall into three categories: the utopian, liminal, and realistic. The utopian texts-Symzonia, The Monikins, and "The Atlantis"-are works of social criticism, using the blank space of the Antarctic to treat a diverse range of issues, including politics, evolutionary theories, race, and gender. Poe's "MS" and Pym represent the liminal category; they dramatize the anticipation of an imminent Antarctic discovery, narrating up to a point of revelation, only to stop short. The Sea Lions is the only realistic text, coming after the Antarctic is explored. Here the knowledge of the Antarctic has solidified into the environment we know today, but with religiously symbolical overtones.