Scientific Mysteries (Amazing Stories, July 1941)

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Overview:

Title: Scientific Mysteries (Amazing Stories, July 1941)
Author: Joseph J. Millard
Year: 1941
Type: Essays
Series: Scientific Mysteries

Editions/Publications:

Unknown. Amazing Stories, July 1941 (Unknown, Joseph J. Millard, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
Unknown. Science Fiction Classics #21 (Unknown, Joseph J. Millard, Pulp Tales Press, $12.95, 150 pages, Trade Paperback, Anthology)