The Beauties of Nature and the Wonders of the World We Live In By: John Lubbock

The Einstein See-Saw By: Miles John Breuer

Insectivorous Plants By: Charles Darwin

The Ultimate Experiment By: Thornton DeKy

Life and Letters of Charles Darwin By: Charles Darwin

The Bird Book Illustrating in natural colors more than seven hundred North American birds; also several hundred photographs of their nests and eggs. By: Chester A. (Chester Albert) Reed

Creatures of the Night A Book of Wild Life in Western Britain By: Alfred Wellesley Rees

The Helpful Robots By: Robert Shea

Civics and Health By: William H. (WIlliam Harvey) Allen

Danger! A True History of a Great City's Wiles and Temptations The Veil Lifted, and Light Thrown on Crime and its Causes, and Criminals and their Haunts. Facts and Disclosures. By: Abraham H. Hummel

...After a Few Words... By: Randall Garrett

The End of Time By: Wallace West

The 4-D Doodler By: Graph Waldeyer

An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes By: Henry P. Talbot

The Bluff of the Hawk By: Anthony Gilmore

The Auburndale Watch Company First American Attempt Toward the Dollar Watch By: Edwin A. Battison

New and Original Theories of the Great Physical Forces By: Henry Raymond Rogers

Out of This World Convention By: Forrest J. Ackerman

The Worshippers By: Damon Francis Knight

No Pets Allowed By: M. A. (Monette A.) Cummings

Theologico-Political Treatise — Part 2 By: Benedictus de Spinoza

Tight Squeeze By: Dean Charles Ing

Conversations on Chemistry, V. 1-2 In Which the Elements of that Science Are Familiarly Explained and Illustrated by Experiments By: Mrs. (Jane Haldimand) Marcet

Psichopath By: Randall Garrett

Lectures on Land Warfare; A tactical Manual for the Use of Infantry Officers By: Anonymous

The Power of Movement in Plants By: Francis Darwin

The Positive School of Criminology Three Lectures Given at the University of Naples, Italy on April 22, 23 and 24, 1901 By: Enrico Ferri

When the World Shook; being an account of the great adventure of Bastin, Bickley and Arbuthnot By: Henry Rider Haggard

The Quantum Jump By: Robert Wicks

Stories about Animals: with Pictures to Match By: Francis C. Woodworth

Drawings and Pharmacy in Al-Zahrawi's 10th-Century Surgical Treatise By: Sami Khalaf Hamarneh

Getting Acquainted with the Trees By: J. Horace (John Horace) McFarland

Death of a Spaceman By: Walter M. Miller

Acid Bath By: Bill Garson

Myths and Marvels of Astronomy By: Richard A. Proctor

Scrimshaw By: Murray Leinster

Mother Earth Land Grants in Virginia 1607-1699 By: Walter Stitt Robinson

Criminal Sociology By: Enrico Ferri

Modus Vivendi By: John Berryman

Morale A Story of the War of 1941-43 By: Murray Leinster

The Botanical Magazine, Vol. 5 Or, Flower-Garden Displayed By: William Curtis

The Starvation Treatment of Diabetes By: Lewis Webb Hill

Dogfight—1973 By: Mack Reynolds

The Man from Time By: Frank Belknap Long

The Pygmy Planet By: Jack Williamson

The Aggravation of Elmer By: Robert Arthur

The Cuckoo Clock By: Wesley Barefoot

Pandemic By: Jesse F. Bone

Droozle By: Frank Banta

The Story of Germ Life By: Herbert W. Conn

Policing the Plains Being the Real-Life Record of the Famous North-West Mounted Police By: R. G. (Roderick George) MacBeth

Alien Offer By: Al Sevcik

The Mind Master By: Arthur J. Burks

The Natural History of Selborne, Vol. 1 By: Gilbert White

The Code of Honor, Or, Rules for the Government of Principals and Seconds in Duelling By: John Lyde Wilson

Fire People By: Ray Cummings

Essays Towards a Theory of Knowledge By: Alexander Philip

The Invaders By: Murray Leinster

The Naturalist on the River Amazons By: Henry Walter Bates

The Best Made Plans By: Everett B. Cole