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 book paper edition with extra content. Details supplied by Monte Herridge. |   | 
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 Details supplied by Denny Lien. |   | 
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 Details supplied by Martin Wooster. |   | 
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 Details supplied by Martin Wooster. |   | 
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 Details supplied by Martin Wooster & Denny Lien. |   | 
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 --- see under The Danger Trail (1926). | 
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 Details supplied by Mike Ward & Morgan Wallace. |   | 
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 Details supplied by John Locke from Table of Contents. |   | 
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 Details supplied by John Locke from Table of Contents. |   | 
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 ed. dir. Cliff Campbell. Details supplied by John Locke from Table of Contents. |   | 
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 ed. dir. Cliff Campbell. Details supplied by John Locke from Table of Contents. |   | 
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 Editor: Cliff Campbell. | 
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 Details supplied by Steve Miller. |   | 
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 Details taken from Table of Contents. |   | 
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 Details taken from The Pulp Magazine Index by Len Robbins. |   |