Combat By: Mack Reynolds

The Botanical Magazine, Vol. 6 Or, Flower-Garden Displayed By: William Curtis

Contributions to the Theory of Natural Selection A Series of Essays By: Alfred Russel Wallace

Games By: Katherine MacLean

Equation of Doom By: Gerald Vance

Rip Foster Rides the Gray Planet By: Harold L. Goodwin

Status Quo By: Dallas McCord Reynolds

Physics and Politics, or, Thoughts on the application of the principles of "natural selection" and "inheritance" to political society By: Walter Bagehot

Indirection By: Everett B. Cole

Song in a Minor Key By: Catherine L. Moore

London's Underworld By: Thomas Holmes

Herself Talks with Women Concerning Themselves By: Edith B. Lowry

History of the Division of Medical Sciences United States National Museum Bulletin 240, Contributions from the Museum of History and Technology, paper 43, 1964 By: Sami Khalaf Hamarneh

Service with a Smile By: Charles Louis Fontenay

Code Three By: Rick Raphael

The Evolution of Modern Capitalism A Study of Machine Production By: John A. Hobson

Lords of the Stratosphere By: Arthur J. Burks

The Common Man By: Mack Reynolds

The Story of the Cambrian A Biography of a Railway By: C. P. (Charles Penrhyn) Gasquoine

The Big Fix By: George O. Smith

My Studio Neighbors By: W. Hamilton Gibson

Watch the Sky By: James H. Schmitz

Crime and Its Causes By: William Douglas Morrison

Fighting the Traffic in Young Girls or, War on the White Slave Trade By: Ernest A. (Ernest Albert) Bell

The Chamber of Life By: Green Peyton

There is a Reaper ... By: Charles V. De Vet

Volcanic Islands By: Charles Darwin

The Carnivore By: Katherine MacLean

Flight Through Tomorrow By: Stanton Arthur Coblentz

The Plague By: Teddy Keller

From a Girl's Point of View By: Lilian Bell

The Jupiter Weapon By: Charles Louis Fontenay