Titles by R. F. Starzl marked with tag: Interplanetary Flying Police
- 1932 - The Martian Cabal
- 1932 - The Power Satellite
- 1932 - The Venus Germ with Festus Pragnell
- 1931 - In the Orbit of Saturn
- 1931 - The Earthman's Burden
- 1931 - The Planet of Despair
- 1930 - The Globoid Terror