The Radium Pool / The Red Dimension / The Phantom of Terror
Ed Earl Repp
Tarzan at the Earth's Core
Edgar Rice Burroughs
Tarzan (13)
The Mirrors of Tuzun Thune
Robert E. Howard
Kull of Valusia (1)
Science Wonder Stories 1929-09 v01n04
Science Wonder Stories
Science Wonder Quarterly 1929 Fall
Science Wonder Quarterly
Air Wonder Stories 1929-09 v01n03
Air Wonder Stories
Skull-Face
Steve Harrison (1)
The Chamber of Life
Paul Chafe & G. Peyton Wertenbaker
Amazing Stories Quarterly 1929 Fall v02n04
Amazing Stories Quarterly
Science Wonder Stories 1929-10 v01n05
Air Wonder Stories 1929-10 v01n04
The Curse of Yig
Zealia Bishop
SS (1)
The Crystal Ray
Raymond Z. Gallun
The Killing Flash
Hugo Gernsback
The Undersea Tube
L. Taylor Hansen
Microcosmic Buccaneers
Harl Vincent
Scientific Detective Monthly
Amazing Stories 1929-11 v04n08
Amazing Stories
Science Wonder Stories 1929-11 v01n06
Air Wonder Stories 1929-11 v01n05