Symmes's theory of concentric spheres.
McBride, James, 1788-1859.
Symmes's theory of concentric spheres; demonstrating that the earth is hollow, habitable within, and widely open about the poles. / By a citizen of the United States ...
Cincinnati : Printed and published by Morgan, Lodge and Fisher, 1826.
xili.e.xiiJ,(131]-168p. : 1 diagr. ; 19cm.
"A short biographical sketch of Captain Symmes": p.157-168.
References: American imprints (1826) 25166.
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