The Lost Continent By: Charles John Cutcliffe Wright Hyne

Thomas Henry Huxley; A Sketch Of His Life And Work By: P. Chalmers (Peter Chalmers) Mitchell

The Mathematicall Praeface to Elements of Geometrie of Euclid of Megara By: John Dee

The Keeper By: H. Beam Piper

The Builders A Story and Study of Masonry By: Joseph Fort Newton

Doctor and Patient By: S. Weir Mitchell

What is Darwinism? By: Charles Hodge

Salvage in Space By: Jack Williamson

The Affair of the Brains By: Anthony Gilmore

Sir William Herschel: His Life and Works By: Edward Singleton Holden

The Cosmic Express By: Jack Williamson

Ten British Mathematicians By: Alexander Macfarlane

The Genus Pinus By: George Russell Shaw

An Elementary Course in Synthetic Projective Geometry By: Derrick Norman Lehmer

Fragments of science, V. 1-2 By: John Tyndall

Airlords of Han By: Philip Francis Nowlan

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

The Man-Made World; or, Our Androcentric Culture By: Charlotte Perkins Gilman

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

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

More Letters of Charles Darwin By: Charles Darwin

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

In Darkest England and the Way Out By: William Booth

Beyond the Vanishing Point By: Ray Cummings

The Yillian Way By: Keith Laumer

Aether and Gravitation By: William George Hooper

The Hammer of Thor By: Charles Willard Diffin

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

Invasion By: Murray Leinster

Three Thousand Years of Mental Healing By: George Barton Cutten

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

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