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By: Ray Cummings (1887-1957)

Book cover The White Invaders
Book cover Tarrano the Conqueror

In "Tarrano the Conqueror" is presented a tale of the year 2430 A.D.--a time somewhat farther beyond our present-day era than we are beyond Columbus' discovery of America. My desire has been to create for you the impression that you have suddenly been plunged forward into that time--to give you the feeling Columbus might have had could he have read a novel of our present-day life. To this end I have conceived myself a writer of that future time, addressing his contemporary public. You are to imagine...

By: Ray Vaughn Pierce

The People's Common Sense Medical Adviser by Ray Vaughn Pierce The People's Common Sense Medical Adviser

The People's Common Sense Medical Adviser In Plain English, Or, Medicine Simplified. By R.V. Pierce, M.D. INTRODUCTORY WORDS. Health and disease are physical conditions upon which pleasure and pain, success and failure, depend. Every individual gain increases public gain. Upon the health of its people is based the prosperity of a nation; by it every value is increased, every joy enhanced. Life is incomplete without the enjoyment of healthy organs and faculties, for these give rise to the delightful sensations of existence...

By: Raymond F. Jones (1915-1994)

The Colonists by Raymond F. Jones The Colonists
Book cover The Memory of Mars
Book cover The Great Gray Plague
Human Error by Raymond F. Jones Human Error
The Unlearned by Raymond F. Jones The Unlearned

By: Raymond Z. Gallun (1911-1994)

The Planet Strappers by Raymond Z. Gallun The Planet Strappers

The Planet Strappers started out as The Bunch, a group of student-astronauts in the back room of a store in Jarviston, Minnesota. They wanted off Earth, and they begged, borrowed and built what they needed to make it. They got what they wanted--a start on the road to the stars--but no one brought up on Earth could have imagined what was waiting for them Out There!

Book cover The Eternal Wall

By: Reginald Crundall Punnett (1875-)

Book cover Mendelism Third Edition

By: Renato Baserga

Book cover Radioisotopes and Life Processes

This is a book in the "Understanding the Atom Series".from the Division of Technical Information, U. S. Atomic Energy Commission. The authors explore general cell theory, radioisotopes as "biologic detectives," the basics of DNA and RNA in cell structure, protein synthesis and the role of radioisotopes in research. - Summary by Larry Wilson

By: René Descartes (1596-1650)

Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences by René Descartes Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences

The Discourse on Method is best known as the source of the famous quotation “cogito ergo sum”, “I think, therefore I am.” …. It is a method which gives a solid platform from which all modern natural sciences could evolve. With this work, the idea of skepticism was revived from the ancients such as Sextus Empiricus and modified to account for a truth that Descartes found to be incontrovertible. Descartes started his line of reasoning by doubting everything, so as to assess the world from a fresh perspective, clear of any preconceived notions.

Book cover A Discourse of a Method for the Well Guiding of Reason and the Discovery of Truth in the Sciences

By: Rennie Wilbur Doane (1871-)

Book cover Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases

By: Richard A. Proctor (1837-1888)

Book cover Chance and Luck
Book cover Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction.
Book cover Half-Hours with the Stars A Plain and Easy Guide to the Knowledge of the Constellations
Book cover Myths and Marvels of Astronomy
Book cover Light Science for Leisure Hours

In preparing these Essays, my chief object has been to present scientific truths in a light and readable form—clearly and simply, but with an exact adherence to the facts as I see them. I have followed—here and always—the rule of trying to explain my meaning precisely as I should wish others to explain, to myself, matters with which I was unfamiliar. Hence I have avoided that excessive simplicity which some seem to consider absolutely essential in scientific essays intended for general perusal, but which is often even more perplexing than a too technical style...

By: Richard Alfred Davenport (1777-1852)

Book cover Sketches of Imposture, Deception, and Credulity

This book contains many brief tales from history of commoners pretending to be kings and kings pretending to be commoners. Learn the fate of a Dutch merchant who wanted a kiss from the disguised Peter the Great's wife. Learn how a farmer's daughter born in 1750 in England gained attention and fame in many lands, and why her death was disbelieved. Learn about early vampires and ghosts. Find out the answers to these and other stories within this book.

By: Richard C. Fox

Book cover The Adductor Muscles of the Jaw In Some Primitive Reptiles
Book cover Two New Pelycosaurs from the Lower Permian of Oklahoma

By: Richard E. Lowe

Book cover When I Grow Up

By: Richard F. Thieme

Book cover Pleasant Journey

By: Richard Jefferies (1848-1887)

After London, or Wild England by Richard Jefferies After London, or Wild England

First published in 1885, After London, or Wild England is considered to be one of the earliest instances of post-apocalyptic fiction, describing the effects of an unspecified catastrophe that dramatically changes the face of England and its population. Divided into two parts, the first depicts the fall of civilization, as society reverts to its more primitive roots, while the second part is set years after the apocalyptic event and examines the evident changes in both natural scenery and social structure...

Book cover The Open Air
Book cover Field and Hedgerow Being the Last Essays of Richard Jefferies
Book cover The Toilers of the Field
Book cover Nature Near London

By: Richard Mead (1673-1754)

Book cover Short Discourse Concerning Pestilential Contagion, and the Methods to Be Used to Prevent It

This is a work written about the plague in France and how to prevent its spread. It is considered an important historical work for the understanding of transmittable diseases. - Summary by afutterer

By: Richard O. Lewis

Book cover A Bottle of Old Wine

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