Letter (Astounding Stories, April 1937): Gravitational Reactions.

From Author Wars - https://authorwars.com/books/letter-astounding-stories-april-1937-gravitational-reactions-3393776.html

Overview:

Title: Letter (Astounding Stories, April 1937): Gravitational Reactions.
Author: C. T. C.
Year: 1937
Type: Essays

Editions/Publications:

Unknown. Astounding Stories, April 1937 (Unknown, C. T. C., Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)