Elements 91 and 89

From Author Wars - https://authorwars.com/books/elements-91-and-89-870683.html

Overview:

Title: Elements 91 and 89
Author: uncredited
Year: 1934
Type: Essays

Editions/Publications:

Unknown. Astounding Stories, November 1934 (Unknown, uncredited, Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)