The Worlds of Tomorrow: Vulcan, the Hollow World

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Overview:

Title: The Worlds of Tomorrow: Vulcan, the Hollow World
Author: uncredited
Year: 1946
Type: Essays

Editions/Publications:

Unknown. Startling Stories, Winter 1946 (Unknown, uncredited, Better Publications, Inc.; Chicago, $0.15, 100 pages, pulp, MAGAZINE)
Unknown. Startling Stories, Winter 1946 (Unknown, uncredited, Pulp Tales Press, ISBN-10: 9781078711449, $12.95, 100 pages, Trade Paperback, Anthology)