Lovecraft’s science in this novel is absolutely sound for its period, although subsequent discoveries have made a few points obsolete. In fact, he was so concerned about the scientific authenticity of the work that, prior to its first publication in Astounding Stories (February, March, and April 1936), he inserted some revisions eliminating an hypothesis he had made that the Antarctic continent had originally been two land masses separated by a frozen channel between the Ross and Weddell Seas—an hypothesis that had been proven false by the first airplane flight across the continent, by Lincoln
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