Serial: conclusion. Illustrations by Charles Schneeman.

Volume XXIV, Number 5. Published by Street & Smith Publications, Inc., 79 7th Ave., New York, NY. Editor, John W. Campbell, Jr.; cover artist, Charles Schneeman; illustrations by M. Isip, R. Isip, Koll and Schneeman.

Volume XXV, Number 2. Published by Street & Smith Publications, Inc., 79 7th Ave., New York, NY. Editor, John W. Campbell, Jr.; cover artist, Hubert Rogers; illustrators, Hewitt, Kolliker, Kramer, Ley, Rogers and Schneeman.

Serial: 1st of 3 parts. Illustrations by Charles Schneeman. Published in 1904 as a novel under the same title, reprinted numerous times. Synopsis of book found on Wikipedia: http://en.wikipedia.org/wiki/Final_Blackout

Novelette. Illustrated by F. Kramer. Part of the Rull Series Appeared in the collected works [i]The Proxy Intelligence and Other Mind Benders[/i], published in 1971 and [i]The Gryb[/i], published in 1976 and reprinted in 1978 and 1980 under the title [i]The Gryb[/i]. Appeared in the anthology [i]Beachheads in Space[/i], published in 1952 and reprinted in 1957 and 1964.

Novelette. Illustrations by Koliker. Appeared in the collected works [i]Early del Ray[/i], published in 1975; [i]The Early del Rey: Volume 1[/i], published in 1976; and [i]Robots and Magic[/i], published in 2010.

Novelette. Illustrations by Hubert Rogers. Part of the Bullard Series. Appeared in the collected works [i]Bullard of the Space Patrol[/i], published in 1951, reprinted in 1955.

Short story. Illustrations by Don Hewitt.

Short story. Illustrations by Hubert Rogers. Appeared in the collected works [i]Martian Quest: The Early Brackett[/i], published in 2002, reprinted in 2008 as [i]Martian Quest[/i] (ebook).

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