Airlords of Han By: Philip Francis Nowlan

The Children's Book of Stars By: G. E. Mitton

In Darkest England and the Way Out By: William Booth

More Letters of Charles Darwin By: Charles Darwin

Wild Flowers An Aid to Knowledge of Our Wild Flowers By: Neltje Blanchan

Handbook of the Trees of New England By: Lorin Low Dame

The Ten Pleasures of Marriage and the Second Part, The Confession of the New Married Couple By: A. Marsh

The Yillian Way By: Keith Laumer

Aether and Gravitation By: William George Hooper

Three Thousand Years of Mental Healing By: George Barton Cutten

The Hammer of Thor By: Charles Willard Diffin

Invasion By: Murray Leinster

Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction. By: Richard A. Proctor

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

Food Remedies Facts About Foods And Their Medicinal Uses By: Florence Daniel

Conestoga Wagons in Braddock's Campaign, 1755 By: Donald H. Berkebile

Explanation of Terms Used in Entomology By: John Bernhard Smith

McIlvaine's Star By: August William Derleth

The formation of vegetable mould through the action of worms, with observations on their habits By: Charles Darwin

And All the Earth a Grave By: C. C. MacApp

How to Succeed By: Orison Swett Marden

Bread Overhead By: Fritz Leiber

Sabotage in Space By: Carey Rockwell

Evidence as to Man's Place in Nature By: Thomas Henry Huxley

Advanced Chemistry By: Jack G. Huekels

Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine By: Henry Weightman Stelwagon

Card Trick By: John Berryman

Of Natural and Supernatural Things Also of the first Tincture, Root, and Spirit of Metals and Minerals, how the same are Conceived, Generated, Brought forth, Changed, and Augmented. By: Basilius Valentinus

Common Science By: Carleton Washburne

Half-Hours with the Stars A Plain and Easy Guide to the Knowledge of the Constellations By: Richard A. Proctor

The Impossibles By: Randall Garrett

Alarm Clock By: Everett B. Cole