The famous physicist Sir Isaac Newton lectured on optics from 1670 - 1672. He worked on the refraction of light into colored beams using prisms and discovered chromatic aberration. He also postulated the corpuscular form of light and an ether to transmit forces between the corpuscles. His "Opticks", first published 1704 contains his postulates about the topic. This is the fourth edition in English, from 1730, which Newton corrected from the third edition before his death.

The power of population is indefinitely greater than the power in the earth to produce subsistence for man. Population, when unchecked, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio. A slight acquaintance with numbers will show the immensity of the first power in comparison with the second (Malthus).

Geology is a science of such rapid growth that no apology is expected when from time to time a new text-book is added to those already in the field. The present work, however, is the outcome of the need of a text-book of very simple outline, in which causes and their consequences should be knit together as closely as possible,—a need long felt by the author in his teaching, and perhaps by other teachers also. The author has ventured, therefore, to depart from the common usage which subdivides...

“The Creature from Cleveland Depths” also known as “The Lone Wolf” tells the story of a writer and his wife who refuse to move below-ground after the cold-war gets hot. The underground society discovers a decline in their ability to creatively innovate, and must consult with surface dwellers to develop products that satiate the needs of a people living like moles. But the latest product to result from this alliance, “The Tickler” has frightening implications that only our heroes seem to notice. – This story appeared in the December, 1962 issue of “Galaxy” magazine.

"I was one hundred miles from Nowhere—and I mean that literally—when I spotted this girl out of the corner of my eye. I'd been keeping an extra lookout because I still expected the other undead bugger left over from the murder party at Nowhere to be stalking me." In a Post apocalyptic world, the few people left must be strong. And must not hesitate to kill. Of course, killing another Deathlander was one of the chief pleasures and urges of all the solitary wanders in this vast wasteland. Kill and kill again. But this other was a girl and that brought up the second great urge: sex. Which was it to be today? Perhaps both?

A classic locked room mystery, in a not-so-classic setting. (Intro by Karen Savage)

They were a traveling group of Shakespearean players; perfectly harmless, right? Wrong. For one thing, why did they have spacemen costumes in their wardrobes, right next to caveman ones? Why was the girl in charge of backstage suffering from amnesia and agoraphobia? No Great Magic is needed to perform the plays they put on, but sometimes great science. No matter where, or when.

The Moon is Green, Bread Overhead and What's He Doing In There?! Three of the best known and loved Science Fiction short stories by the wonderful Fritz Lieber. Always tongue in cheek, and always with a funny twist, Leiber deftly shows how humans will adapt to or mess up the future. In ways that only humans can.

Dr. Walsh’s Old-Time Makers of Medicine chronicles the history and development of modern medicine from ancient times up to the discovery of America. Throughout this historical guide, Dr. Walsh shows numerous examples of practices thought to be entirely modern that were clearly anticipated hundreds or thousands of years ago. Ancient healers sought to use the body’s natural healing ability, rather than rely exclusively on external cures. Physicians even in ancient times relied on what is now recognized as the placebo effect...

Jean-Henri Casimir Fabre was a French entomologist and author. He was born in St. Léons in Aveyron, France. Fabre was largely an autodidact, owing to the poverty of his family. Nevertheless, he acquired a primary teaching certificate at the young age of 19 and began teaching at the college of Ajaccio, Corsica, called Carpentras. In 1852, he taught at the lycée in Avignon.

A 1922 source-book for British criminal pathologists, this will be of particular interest to fans of popular police forensics television shows, films, and murder mysteries.

In the book's preface, the author writes: "Let anyone stop to consider how he individually would be affected if all electrical service were suddenly to cease, and he cannot fail to appreciate the claims of electricity to attentive study."In these days when we take for granted all kinds of technology - communications, entertainment, medical, military, industrial and domestic - it is interesting to learn what progress had been made in the fields of electricity and technology by the beginning of the 20th century...

A Voyage to Arcturus is a novel by Scottish writer David Lindsay, first published in 1920. It combines fantasy, philosophy, and science fiction in an exploration of the nature of good and evil and their relationship with existence. It has been described by critic and philosopher Colin Wilson as the "greatest novel of the twentieth century" and was a central influence on C. S. Lewis's Space Trilogy.

Langstroth revolutionized the beekeeping industry by using bee space in his top opened hive. In the summer of 1851 he found that, by leaving an even, approximately bee-sized space between the top of the frames holding the honeycomb and the flat coverboard lying above, he was able to quite easily remove the latter, which was normally well cemented to the frames with propolis making separation hard to achieve. Later he had the idea to use this discovery to make the frames themselves easily removable...

'Straight from the horse's mouth', as they say. Edward Ruppelt was the first head of the U.S. Air Force's Project Blue Book, the official project initiated to investigate UFO reports beginning in 1952. This report from 1956 takes us inside these initial investigations, separates fact from fiction, and gives insight into who, when, where, and how sightings were reported and researched in open-minded fashion (for which Ruppelt was renowned), rather than in the typical hushed and secretive (and censored) manner most often associated with government and military reports which are released to the public...

Carrying out the last wishes of a comrade, mercenary Eric John Stark takes on the task of returning a stolen talisman to a walled city near the Martian pole; a city that guards the mysterious Gates of Death. Now all he has to do is get past the brutal clans of Mekh and the shadowy Lord Ciaran to get to Kushat where they’ll probably attempt to kill him. All while he tries to hold on to a talisman that imprints ancient memories of the Gates in his mind. That’s not easy for a human raised by Mercurian aborigines...

Tom Corbett - Space Cadet was one of the first multimedia sensations. In the 1950s the character had his own radio show, TV series, comic book, breakfast cereal, and a line of young-adult novels. A cross between "Tom Brown's School Days" and Horatio Hornblower (and loosely based upon Robert A. Heinlein's novel "Space Cadet"), the books follow the adventures of Tom and his friends Roger Manning and Astro as they work their way through Space Academy to become officers of the Solar Guard. Along the way they tangle with space pirates, smugglers, and the threat of demerits for breaking the rules...

Tom Corbett is the main character in a series of Tom Corbett — Space Cadet stories that were depicted in television, radio, books, comic books, comic strips, and other media in the 1950s. The stories followed the adventures of Corbett and other cadets at the Space Academy as they train to become members of the Solar Guard. The action takes place at the Academy in classrooms and bunkrooms, aboard their training ship the rocket cruiser Polaris, and on alien worlds, both within our solar system and in orbit around nearby stars...

This book is part of the on-going adventures of Tom Corbett in the Space Cadet Stories. Tom, Astro and Roger are determined to find the saboteurs but get framed in the process, risking court martial and expulsion from the Space Academy. NOTE: Carey Rockwell is a pseudonym used by Grosset & Dunlap. It is unknown who wrote the books.

A science fiction novel that was originally produced in four parts in the publication: Astounding Stories in June, September, November 1932, January 1933. The main character is Dean Rawson, who plans on discovering a way of mining power from a dead volcano, but ends up discovering more than he bargained for.

Published in 1920, Slosson’s Easy Lessons in Einstein is one of the first popularizations of Einstein’s theory of relativity. This book is meant to convey to the general reader the ideas of relativity in non-mathematical terms, by the use of thought experiements and pop-cultural references of the day. This edition also includes a short article by Einstein on Time, Space and Gravitation.

Slosson reviews the transformation of alchemistry from an obscure and imprecise practice to the science of chemistry. Along the way, he explains how the modern industrial world now relies on fertilizers, explosives, textile materials, polymers and metals.By exploring the properties of a once undervalued element, the high strength of vanadium steel made the Ford car possible. Another element, cerium, appears in butane lighters and was once seen as a threat to the match industry in France.In his chapter on oils, Slosson reviews the development of hydrogenated oils, especially during WWII, in the search for a way to reuse otherwise discarded components of corn and cottonseed...

Joseph Lister was born near London in 1827. He studied medicine at the University of London and pursued a career as a surgeon in Scotland. He became professor of Surgery in Glasgow and later (1877) at Kings College Hospital, in London. Lister’s contribution to the advancement of surgery cannot be overestimated. Before his work on antisepsis, wounds were often left open to heal, leading to long recoveries, unsightly scarring, and not infrequently amputation or death due to infection. Lister’s work enabled more wounds to be closed primarily with sutures, drastically reducing healing time, scarring, amputations, and deaths due to infection...

Delightful sketches of British wild birds – a bird for every month of the year from the pheasant in January to the robin in December. This collection of articles, reprinted in book form from the periodical The Outlook, is full of fascinating information about bird behaviour and habitat, as well as many interesting anecdotes. Out of date in some respects, particularly in its reference to the (now illegal) collecting of birds’ eggs, this book brings home forcefully how the populations of some British wild birds have declined since it was written.