Doctor and Patient By: S. Weir Mitchell

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

The Affair of the Brains By: Anthony Gilmore

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

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

The Genus Pinus By: George Russell Shaw

Ten British Mathematicians By: Alexander Macfarlane

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

Airlords of Han By: Philip Francis Nowlan

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

In Darkest England and the Way Out By: William Booth

More Letters of Charles Darwin By: Charles Darwin

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

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

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

Aether and Gravitation By: William George Hooper

The Yillian Way By: Keith Laumer

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

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

Explanation of Terms Used in Entomology By: John Bernhard Smith

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

McIlvaine's Star By: August William Derleth

How to Succeed By: Orison Swett Marden

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

Bread Overhead By: Fritz Leiber

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

Sabotage in Space By: Carey Rockwell

Advanced Chemistry By: Jack G. Huekels

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

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

Common Science By: Carleton Washburne

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

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

The Hunted Heroes By: Robert Silverberg

Operation R.S.V.P. By: H. Beam Piper

Alarm Clock By: Everett B. Cole

On the Significance of Science and Art By: Leo Tolstoy

We Didn't Do Anything Wrong, Hardly By: Roger Kuykendall

The Romance of Mathematics Being the Original Researches of a Lady Professor of GirthamCollege in Polemical Science By: P. Hampson

Form and Function A Contribution to the History of Animal Morphology By: E. S. (Edward Stuart) Russell

Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying By: H. L. (Harry Luman) Russell

I'm a Stranger Here Myself By: Mack Reynolds

Gone Fishing By: James H. Schmitz

Practical Taxidermy A manual of instruction By: Montagu Browne

Manhood Perfectly Restored Prof. Jean Civiale's Soluble Urethral Crayons as a Quick, Painless, and Certain Cure for Impotence, Etc. By: Civiale Remedial Agency

The Fibonacci Number Series By: Michael Husted

Operation Earthworm By: Joe Archibald

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

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

Am I Still There? By: James R. Hall

Ullr Uprising By: H. Beam Piper

Death Wish By: Robert Sheckley

The Botanical Magazine, Vol. 2 or Flower-Garden Displayed By: William Curtis

The Leech By: Robert Sheckley