The Flying Saucers are Real is a book that investigates numerous encounters between USAF fighters, personnel, and other aircraft, and UFOs between 1947 and 1950. Keyhoe contended that the Air Force was actively investigating these cases of close encounter, with a policy of concealing their existence from the public until 1949. He stated that this policy was then replaced by one of cautious, progressive revelation. Keyhoe further stated that Earth had been visited by extraterrestrials for two centuries, with the frequency of these visits increasing sharply after the first atomic weapon test in 1945...

It was the 34th century and all five of the Federation of Planets around Sol were buzzing with their usual activity when the Raiders appeared. They were indeed Raiders of Universes because they had ravaged many systems before reaching Earth and showed no signs of slowing down in the least. Their weapons were invincible, their greed merciless and their natures completely alien. Indeed 'they' were from another dimension entirely. Eating up entire solar systems and planets, they slowed down just a bit when intelligent life was found on Earth...

An Introduction to the History and Civilization of Greece from the Coming of the Greeks to the Conquest of Corinth by Rome in 146 B.C. The spirit of a nation is expressed and its history is recorded in three ways: in its political history, in its literature and in its art. The aim of this book has been to use such parts of the political history of the Greeks, of their literature and of their art as seem to have been the outward and visible signs of the spirit that inspired them. - Summary from...

When the Inter-Planetary Corporation's (IPC) crack liner “IPV Arcturus” took off on a routine flight to Mars, it turned out to be the beginning of a unexpected and long voyage. There had been too many reports of errors in ship's flight positions from the Check Stations and brilliant physicist Dr. Percival (“Steve”) Stevens is aboard the Arcturus on a fact-finding mission to find out what's really happening, and hopefully save the honor of the brave pilots of the space-liner Arcturus from the desk-jockeys' in the Check Stations implications of imprecision - the nastiest insult you could cast at a ships pilot...

This is a sequel to The Skylark of Space. The novel concerns Richard Seaton and his allies who have encounters with aliens while fighting DuQuesne and the Fenachrone..

A team of space travelers are caught in a subspace accident which, up to now, no one has ever survived. But some of the survivors of the Procyon are not ordinary travelers. Their psi abilities allow them to see things before they happen. But will it be enough?Smith's story "Subspace Survivors" first appeared in the July 1960 issue of the magazine Astounding.

They were four of the greatest minds in the Universe: Two men, two women, lost in an experimental spaceship billions of parsecs from home. And as they mentally charted the Cosmos to find their way back to earth, their own loves and hates were as startling as the worlds they encountered.

Triplanetary was first serialized in Amazing Stories in 1934. After the Lensman series became popular, Smith took his Triplanetary story and turned it into the first of the Lensman series, using it as a prequel to give the back story for the protaganists in the Lensmen series. He added 6 new chapters, doubling it in size and it's really a different book from the serialized novel, being published 14 years after the first. It was put into Gutenberg just last year. The novel covers several episodes in an eons-long eugenics project of the super-intelligences of the Arisia...

This history of the Women's Suffrage agitation is written at a time when the question is in the very forefront of British politics. What the immediate future holds for those women who are most actively engaged in fighting for their political freedom no one can foretell, but one thing is certain: complete victory for their cause is not far distant. When the long struggle for the enfranchisement of women is over, those who read the history of the movement will wonder at the blindness that led the Government of the day to obstinately resist so simple and obvious a measure of justice...

This is one of the publications in the “Understanding the Atom” Series from the U. S. Atomic Energy Commission. Topics covered include an overview of the ocean, the role of nuclear energy, research project, oceanic instruments, nuclear powered vessels, desalination, and radiation preservation of seafood. - Summary by Larry Wilson

Uncontrolled, terribly violent Atomic Vortices are slowly destroying civilization on every human planet throughout the galaxy. Nothing can contain or stop them despite the lensmen's best efforts until one destroys the home and family of "Storm" Cloud, brilliant atomic physicist. The tragedy triggers actions on his part that pit him one-on-one against the horrible vortices. Introducing "storm" Cloud as THE Vortex Blaster

Radioisotopes in Medicine is an educational booklet published in 1966 as part of the Understanding the Atom series by the United States Atomic Energy Commission. Written in clear language for the general public, the booklet covers the diagnostic and therapeutic uses of radioactive isotopes like technetium 99m and iodine 131.

Warlord of Mars by Edgar Rice Burroughs was first published in 1913. It was the third book in an eleven part series known as the Barsoom Chronicles which relate to a sequence of exciting adventure tales set on the fictional planet of Barsoom. In the Barsoom series, Mars, assumed to be older than Earth, is a dying planet. “Barsoom” is the native word for Mars in the Martian language. The stories first appeared in serialized form in various magazines like All-Story, Argosy, Amazing Stories and The Blue Book...

If you're a sci-fi fan, then you've probably heard of Edgar Rice Burroughs' famous Barsoom series of science fiction fantasy novels. Set in the “dying planet” Mars, the ten books in the series portray an Earthman, John Carter and his astral journey to the Red Planet, his marriage with a native princess and his descendants. The Chessmen of Mars is the fifth book in the Barsoom set, written in 1921 and published in serial form in Argosy magazine over the period of a year. Here, John Carter's daughter Tara meets Prince Gahan of the Gathol kingdom, but takes an instant dislike to the young and fashionable man, feeling that he is just a shallow youth...

This is the first book in the Pellucidar series. Pellucidar is a fictional Hollow Earth milieu invented by Edgar Rice Burroughs for a series of action adventure stories. The stories initially involve the adventures of mining heir David Innes and his inventor friend Abner Perry after they use an “iron mole” to burrow 500 miles into the earth’s crust. (adapted from Wikipedia)

Published in 1920, Thuvia, Maid of Mars is the fourth book in the Barsoom series and concentrates on Carthoris, the son of infamous John Carter, and Thuvia, the princess of Ptarth, as they find themselves entangled in a complex web of love and strict traditions of Barsoom. A typical Burroughs piece, the installment contains all the required elements of an effective pulp fiction, including a hero, a damsel in distress, unforeseen complications, and a generous supply of action. Welcoming a new...

The People that Time Forgot is a science fiction novel, the second of Edgar Rice Burroughs’ “Caspak” trilogy. The first novel ended with the hero writing a manuscript of his adventures and casting it out to sea in his thermos bottle. The second novel begins with the finding of the manuscript and the organization of a rescue expedition.

Pellucidar is a fictional “Hollow Earth” milieu invented by Edgar Rice Burroughs for a series of action adventure stories. The stories initially involve the adventures of mining heir David Innes and his inventor friend Abner Perry after they use an “iron mole” to burrow 500 miles into the earth’s crust. This is the second book in the series.

"The Royal Society is a Fellowship of many of the world's most eminent scientists and is the oldest scientific academy in continuous existence." . As scientists have explored the world around them, observed and tried to explain natural phenomena, they have been invited to present papers to the Royal Society. Edmond Halley was an eminent member of the society and gathered together some of the most interesting papers of his day. Today, we may see errors in the logic or calculations, based on current knowledge, but these papers are unedited and as presented at the time and show how scientific knowledge was expanding in the late seventeenth and early eighteenth centuries...

Edmond Hamilton (1904 – 1977) had a career that began as a regular and frequent contributor to Weird Tales magazine. The first hardcover publication of Science Fiction stories was a Hamilton compilation, and he and E.E. “Doc” Smith are credited with the creation of the Space Opera type of story. He worked for DC Comics authoring many stories for their Superman and Batman characters. Hamilton was also married to fellow author Leigh Brackett. – Published in the May, 1962 issue of Amazing Stories “The Stars, My Brothers” gives us a re-animated astronaut plucked from a century in the past and presented with an alien world where the line between humans and animals is blurred.

A severe earthquake, centered in the vacation area of West Yellowstone, Montana, shook the ground and its inhabitants and visitors on August 17, 1959, at 11.37 pm. A mountainside fell, a lake formed, roads and houses disappeared, people were trapped, people died. The author of this narrative went to the area the day after the quake, took first-hand stories of the catastrophe, researched in the following months, and wrote this account within a year of the shaking. The printed source has many informative photographs. - Summary by David Wales

Looking Backward: 2000-1887 is a utopian novel by Edward Bellamy, first published in 1888. It was the third largest bestseller of its time, after Uncle Tom’s Cabin and Ben-Hur: A Tale of the Christ.The book tells the story of Julian West, a young American who, towards the end of the 19th century, falls into a deep, hypnosis-induced sleep and wakes up more than a century later. He finds himself in the same location (Boston, Massachusetts) but in a totally changed world: It is the year 2000 and, while he was sleeping, the U...