14 books
Buccaneer of the Star Seas
Rescue From Venus
Air Wonder Stories, May 1930
Air Wonder Stories, December 1929
Air Wonder Stories, November 1929
Air Wonder Stories, August 1929
Planet of No Return & The Annihilator Comes
The Second Western Megapack
Second Western Megapack, The: 25 Classic Western Stories
The Radium Pool
Quick Pay for Maverick Men
Armageddon 1948
Spawn of Jupiter
John Hale Laboratory Sleuth