Riddles of Science: Mystery of the Sunspots
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Overview:
- Title: Riddles of Science: Mystery of the Sunspots
- Author: Joe Sewell
- Year: 1940
- Type: Interior Art
Editions/Publications:
- Unknown. Amazing Stories, August 1940 (Unknown, Joe Sewell, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
- Unknown. Thrilling Science Fiction Adventures No. 14, Fall 1969 (Unknown, Joe Sewell, Ultimate Publishing Co., Inc., $0.50, 132 pages, digest, MAGAZINE)