Letter (Astounding Stories, November 1937): A Fourth State of Matter.

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Overview:

Title: Letter (Astounding Stories, November 1937): A Fourth State of Matter.
Author: John W. Campbell, Jr.
Year: 1937
Type: Essays
Series: Letters: John W. Campbell, Jr.

Variant Titles:

1937. Letter (Astounding Stories, November 1937): A Fourth State of Matter.

This text has been adapted from the Letter (Astounding Stories, November 1937): A Fourth State of Matter. entry at the Internet Speculative Fiction Database and is available under a Creative Commons License. The ISFDB does not endorse or sponsor this use.