Creative Chemistry By: Edwin E. Slosson

Arm of the Law By: Harry Harrison

Triplanetary, First in the Lensman Series By: E. E. “Doc” Smith

Studies in the Psychology of Sex, Volume One By: Havelock Ellis

Stand by for Mars By: Carey Rockwell

A Slave is A Slave By: H. Beam Piper

The Untroubled Mind By: Herbert J. Hall

The K-Factor By: Harry Harrison

Hunter Patrol By: H. Beam Piper and John McGuire

The Romance of Modern Chemistry By: James C. Philip

The Vortex Blaster By: E.E. Smith

Null-ABC By: H. Beam Piper

Experiments in Plant Hybridisation By: Gregor Mendel

The Repairman By: Harry Harrison

The World Beyond By: Ray Cummings

A Spaceship Named McGuire By: Randall Garrett

Beyond Lies the Wub & The Skull By: Philip K. Dick

A Problem in Modern Ethics By: John Addington Symonds

The Ambulance Made Two Trips By: Murray Leinster

The Mystic Will By: Charles Godfrey Leland (1824-1903)

The Judas Valley By: Robert Silverberg and Randall Garrett

Galaxy Primes By: E. E. Smith

Five Lectures on Blindness By: Kate M. Foley

Condition of the Working-Class in England in 1844 By: Friedrich Engels

Laws By: Plato

Temple Trouble By: H. Beam Piper

Chemical Phenomena in Life By: Frederick Czapek

Experiments and Observations on Different Kinds of Air By: Joseph Priestley

Young Girl's Diary By: Anonymous

Southern Horrors: Lynch Law In All Its Phases By: Ida B. Wells-Barnett

Republic (version 2) By: Plato (Πλάτων)

Gorgias By: Plato (Πλάτων)