Evolution in Modern Thought By: August Weismann

The Earliest Arithmetics in English By: Joannes de Sacro Bosco

Cost of Living By: Robert Sheckley

The Production of Vinegar from Honey By: Gerard W. Bancks

Youth and Sex By: F. Arthur Sibly

Stamp Collecting as a Pastime By: Edward J. (Edward James) Nankivell

The Adventurer By: C. M. Kornbluth

Sane Sex Life and Sane Sex Living Some Things That All Sane People Ought to Know About Sex Nature and Sex Functioning; Its Place in the Economy of Life, Its Proper Training and Righteous Exercise By: H. W. (Harland William) Long

The Day Time Stopped Moving By: Bradner Buckner

A Manual of the Operations of Surgery For the Use of Senior Students, House Surgeons, and Junior Practitioners By: Joseph Bell

A Discourse of a Method for the Well Guiding of Reason and the Discovery of Truth in the Sciences By: René Descartes

The Stoker and the Stars By: Algis Budrys

The Women of the Arabs By: Henry Harris Jessup

Emergency Childbirth A Reference Guide for Students of the Medical Self-help Training Course, Lesson No. 11 By: United States. Office of Civil Defense

The Lost Continent By: Charles John Cutcliffe Wright Hyne

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

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

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

What is Darwinism? By: Charles Hodge

Doctor and Patient By: S. Weir Mitchell

The Keeper By: H. Beam Piper

Salvage in Space By: Jack Williamson

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

The Affair of the Brains By: Anthony Gilmore

The Cosmic Express By: Jack Williamson

The Genus Pinus By: George Russell Shaw

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

Ten British Mathematicians By: Alexander Macfarlane

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

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

Airlords of Han By: Philip Francis Nowlan

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

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

In Darkest England and the Way Out By: William Booth

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

More Letters of Charles Darwin By: Charles Darwin

Beyond the Vanishing Point By: Ray Cummings

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

The Yillian Way By: Keith Laumer

Aether and Gravitation By: William George Hooper

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

The Hammer of Thor By: Charles Willard Diffin

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

Bread Overhead By: Fritz Leiber

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

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

Sabotage in Space By: Carey Rockwell

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

Advanced Chemistry By: Jack G. Huekels

The Inheritors By: Ford Madox Ford

Card Trick By: John Berryman

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

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

The Hunted Heroes By: Robert Silverberg

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

Alarm Clock By: Everett B. Cole

The Impossibles By: Randall Garrett

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

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

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

On the Significance of Science and Art By: Leo Tolstoy

I'm a Stranger Here Myself By: Mack Reynolds

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

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

Gone Fishing By: James H. Schmitz

Practical Taxidermy A manual of instruction By: Montagu Browne

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

The Fibonacci Number Series By: Michael Husted

Death Wish By: Robert Sheckley

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

Ullr Uprising By: H. Beam Piper

The Risk Profession By: Donald E. Westlake

Notes on Nursing What It Is, and What It Is Not By: Florence Nightingale

The Hour of Battle By: Robert Sheckley

The Leech By: Robert Sheckley

A Popular History of Astronomy During the Nineteenth Century Fourth Edition By: Agnes M. (Agnes Mary) Clerke

The Mathematicians By: Arthur Feldman

ABC's of Science By: Charles A. (Charles Alexander) Oliver

A History of Science By: Henry Smith Williams

Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries By: Garrett Putman Serviss

Dead World By: Jack Douglas

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

The Mother and Her Child By: Lena K. (Lena Kellogg) Sadler

Trinity site By: National Atomic Museum (U.S.)

Valley of Dreams By: Stanley Grauman Weinbaum

Miscellaneous Mathematical Constants By: Simon Plouffe

The Battle with the Slum By: Jacob A. Riis

Primitive Psycho-Therapy and Quackery By: Robert Means Lawrence