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)

Gambler's World & The Yillian Way By: Keith Laumer

Random Reminiscences of Men and Events By: John D. Rockefeller

Watchbird By: Robert Sheckley

Treatise on Light By: Christiaan Huygens

The World's Lumber Room By: Selina Gaye

Great Astronomers By: Robert Stawell Ball

Islands of Space By: John Wood Campbell. Jr.

Studies About Trees By: Jacob Joshua Levison

Time Crime By: H. Beam Piper

Danger! and Other Stories By: Sir Arthur Conan Doyle

Invaders from the Infinite By: John Wood Campbell. Jr.

Police Your Planet By: Lester del Rey

Raiders of the Universes By: Donald Wandrei

Extermination of the American Bison By: William T. Hornaday

The Prospective Mother By: J. Morris Slemons

Space Platform By: Murray Leinster

Auguste Comte and Positivism By: John Stuart Mill

Wild Animals I Have Known By: Ernest Thompson Seton

Martyrs of Science, or, the Lives of Galileo, Tycho Brahe, and Kepler By: David Brewster

Happy Unfortunate By: Robert Silverberg

Three Science Fiction Stories by Fritz Leiber By: Fritz Leiber

Naudsonce By: H. Beam Piper

Salvage in Space By: Jack Williamson

Airlords of Han By: Philip Francis Nowlan

Young Woman's Guide to Excellence By: William A Alcott

How to Succeed By: Orison Swett Marden

Sabotage in Space By: Carey Rockwell

Card Trick By: John Berryman

No Animal Food and Nutrition and Diet with Vegetable Recipes By: Rupert H. Wheldon

I Was a Teen-Age Secret Weapon By: Richard Sabia

Chronicles of Canada Volume 32 - The Railway Builders: A Chronicle of Overland Highways By: Oscar D. Skelton

Among the Trees at Elmridge By: Ella Rodman Church

Tom Swift and His Sky Racer By: Victor Appleton

Unwise Child By: Randall Garrett

Fire People By: Ray Cummings

Food Guide for War Service at Home By: Frances Swain

Honeymoon in Space By: George Griffith

Wandl the Invader By: Ray Cummings

Equation of Doom By: Gerald Vance

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

Status Quo By: Dallas McCord Reynolds

Ways of Wood Folk By: William Joseph Long

That Sweet Little Old Lady By: Randall Garrett

Tarrano the Conqueror By: Ray Cummings

Secrets of the Woods By: William Joseph Long

Birds and Bees, Sharp Eyes, and Other Papers By: John Burroughs

Flying Saucers are Real By: Donald Keyhoe

Anything You Can Do! By: Randall Garrett

George Müller of Bristol By: Arthur T. Pierson

Song of the Cardinal By: Gene Stratton-Porter

Mason-Bees By: Jean-Henri Fabre

In Times Like These By: Nellie McClung

Underground Man By: Gabriel Tarde

Bird Stories from Burroughs By: John Burroughs

Life of the Fly, With Which are Interspersed Some Chapters of Autobiography By: Jean-Henri Fabre

Indian To-day By: Charles Alexander Eastman

Four Science Fiction Stories by G.L.Vandenburg By: G. L. Vandenburg

Wonders of the Jungle By: Sarath Kumar Ghosh

Apis Mellifica By: C. W. Wolf

Stories of Birds By: Lenore Elizabeth Mulets

Kari the Elephant By: Dhan Gopal Mukerji

Queer Little Folks By: Harriet Beecher Stowe

Surprising Adventures of Bampfylde Moore Carew, King of the Beggars By: Robert Goadby

Within the Deep By: R. Cadwallader Smith

3 Science Fiction Stories by Gerald Vance By: Gerald Vance

Essays on Work and Culture By: Hamilton Wright Mabie

What the Mother of a Deaf Child Ought to Know By: John Dutton Wright

Anatomy of Melancholy Volume 3 By: Robert Burton

Formation of Vegetable Moulds through the Action of Worms with Observations on their Habits By: Charles Darwin

Adventures of a Grain of Dust By: Hallam Hawksworth

Organic Evolution By: Richard Swann Lull

National Geographic Magazine Vol. 01 No. 3 By: Various

Address to Free Colored Americans By: An Anti-Slavery Convention of American Women

Physics By: Aristotle

Handbook of Nature-Study, Part 1 By: Anna Botsford Comstock

Failure of Initiative: Final Report of the Select Bipartisan Committee to Investigate the Preparation for and Response to Hurricane Katrina By: United States House of Representatives

Constructive Beekeeping By: Ed Clark

Revolted Woman By: Charles George Harper

Secret of Everyday Things By: Jean-Henri Fabre

Final Report from the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling By: National Comm. on the BP Deepwater Horizon Oil Spill