The Master Cleanse by Stanley Burroughs
24
The Outlaw of Torn
The Monster Men
Tarzan the Untamed
Thuvia, Maid of Mars
The Mad King
The Lost Continent
The People That Time Forgot
The Gods of Mars
The Oakdale Affair
The Mucker
Pellucidar
The Land That Time Forgot
The Efficiency Expert
Tarzan and the Jewels of Opar
At The Earth's Core
The Son of Tarzan
Warlord of Mars
Out of Time's Abyss
Tarzan of the Apes
Jungle Tales of Tarzan
Tarzan the Terrible