The Blue Spot (Part 1 of 2)

From Author Wars - https://authorwars.com/books/the-blue-spot-part-1-of-2-112245.html

Overview:

Title: The Blue Spot (Part 1 of 2)
Author: Jack Williamson
Year: 1937
Type: Serials

Editions/Publications:

Unknown. Astounding Stories, January 1937 (Unknown, Jack Williamson, Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)