The Topics is is the fifth of Aristotle's six texts on logic which are collectively known as the Organon ("Instrument"). The Topics constitutes Aristotle's treatise on the art of dialectic—the invention and discovery of arguments in which the propositions rest upon commonly-held opinions or endoxa. Topoi are "places" from which such arguments can be discovered or invented. In his treatise on the Topics, Aristotle does not explicitly define a topos, though it is "at least primarily a strategy for argument not infrequently justified or explained by a principle."

De Sophisticis Elenchis is the sixth of Aristotle's six texts on logic which are collectively known as the Organon ("Instrument"). In De Sophisticis Elenchis Aristotle identifies 13 falacies. Verbal Fallacies are: Accent or Emphasis; Amphibology; Equivocation; Composition; Division and Figure of Speech. Material Fallacies are: Accident; Affirming the Consequent; Converse Accident; Irrelevant Conclusion; Begging the Question; False Cause and Fallacy of Many Questions.

A Free Trader rocket ship heads for the remote planet, Sargol, which is blessed with immense natural wealth and precious gemstones. The ship is manned by the heroic Dane Thorson and his crew of intrepid space traders. On Sargol, they enter into complicated negotiations with the inhabitants of this strange planet. These feline people, the Salariki, are reluctant to enter into a business partnership with the free traders till they discover that the ship carries a small amount of catnip on board which they'd obtained from another trading post...

If you've read and enjoyed The Stars Are Ours, you will certainly enjoy this exciting sequel! Star Born by Andre Norton was first published in 1957, two years after the previous book and is in itself a complete and riveting read. The theme depicts an early inter-stellar flight undertaken by people who call themselves the Free Scientists escaping from an oppressive regime on Earth. When Pax, a global authoritarian regime takes over the planet, it deems all space travel illegal. However this small group flees before the rules come into force...

If it is possible to conquer space, then perhaps it is also possible to conquer time. At least that was the theory American scientists were exploring in an effort to explain the new sources of knowledge the Russians possessed. Perhaps Russian scientists had discovered how to transport themselves back in time in order to learn long-forgotten secrets of the past. That was why young Ross Murdock, above average in intelligence but a belligerently independent nonconformist, found himself on a “hush-hush” government project at a secret base in the Arctic...

A science fiction novella depicting a thrilling cat-and-mouse game which plays out between a credulous young man and an interstellar safari leader, as the two take up an unanticipated adventure on the mysterious planet Jumala. Norton combines mind control, cunning schemes, interstellar travel, and alien intelligence in an action-packed adventure. The story unfolds with the introduction of Ras Hume, a pilot and Out-Hunter, who with the help of a criminal mastermind from the planet Nahuatl plans a conspiracy to secure a fortune by manipulating its supposed beneficiary...

This is Book 4 in the Time Traders Series, In this book Ross Murdock and Arthur Ashe continue their adventures in Time and Space on the World of Hawaika. Hawaiian and Polynesian settlers help Ross and Ashe discover the way the world has changed from the data tape to present time. Helped by a girl (Karara) and her two trained dolphins (Tino-rau and Taua)

Travis Fox and a band of fellow Apache AmerIndians have their racial memories and survival abilities enhanced by the Redax machine and are sent to the planet Topaz, one of the few worlds of the ancient star empire that the US has voyage tapes to. But the Reds have “snooped” the tapes and get there first, and have a nasty surprise waiting for any ship that does not have the proper identification. Travis and some of his fellow Apaches survive the ensuing crash landing…but can they defeat the Reds and win Topaz for themselves? This work is a sequel to both The Time Traders and Galactic Derelict...

An air force pilot adrift in peacetime is recruited to join an Antarctic expedition. When a strange mist downs his plane he discovers an ancient alien civilization which has prophesized his arrival. Now he and his faithful pet Ana must descend to the depths of the crater and face the Black Ones in order to rescue the fair Thrala, daughter of the Ancient Ones. – Andre Norton (Alice Mary Norton) was a popular author of science fiction and fantasy who began publishing stories in the early 1930s. “The People of the Crater” was first published in volume 1 number 1 of Fantasy Book in 1947.

Considered to be one of the books that changed the world and how we view ourselves, On The Origin of Species by Charles Darwin was met with incredulous horror when it was first published in 1859. The revolutionary, almost blasphemous ideas it described were seen as antithetical to the existing ideas of Creation contained in the Bible and other religious texts. It was mocked, reviled and the author was personally subjected to vicious persecution by the establishment and theologians. In the years that followed its publication, the book became the subject of furious intellectual and social debate...

The book, also known as Darwin’s Journal of Researches, is a vivid and exciting travel memoir as well as a detailed scientific field journal covering biology, geology, and anthropology that demonstrates Darwin’s keen powers of observation, written at a time when Western Europeans were still discovering and exploring much of the rest of the world. Although Darwin revisited some areas during the expedition, for clarity the chapters of the book are ordered by reference to places and locations rather than chronologically. With hindsight, ideas which Darwin would later develop into his theory of evolution by natural selection are hinted at in his notes and in the book .

The Autobiography of Charles Darwin is the autobiography of the British naturalist Charles Darwin which was published in 1887, five years after his death. Darwin wrote the book, which he entitled Recollections of the Development of my Mind and Character, for his family. He states that he started writing it on about May 28, 1876 and had finished it by August 3. The book was edited by Charles Darwin’s son Francis Darwin, who removed several passages about Darwin’s critical views of God and Christianity...

PART I. THE DESCENT OR ORIGIN OF MAN. Part 1 of 3 of book on evolutionary theory by English naturalist Charles Darwin, first published in 1871. It was Darwin's second great book on evolutionary theory, following his 1859 work, On The Origin of Species. In The Descent of Man, Darwin applies evolutionary theory to human evolution, and details his theory of sexual selection. The book discusses many related issues, including evolutionary psychology, evolutionary ethics, differences between human races, differences between sexes, the superiority of men to women, and the relevance of the evolutionary theory to society...

At one time Race Cargill had been the best Terran Intelligence agent on the complex and mysterious planet of Wolf. He had repeatedly imperiled his life amongst the half-human and non-human creatures of the sullen world. And he had repeatedly accomplished the fantastic missions until his name was emblazoned with glory. But that had all seemingly ended. For six long years he’d sat behind a boring desk inside the fenced-in Terran Headquarters, cut off there ever since he and a rival had scarred and ripped each other in blood-feud...

Conn Maxwell returns from Terra to his poverty-stricken home planet of Poictesme, “The Junkyard Planet”, with news of the possible location of Merlin, a military super-computer rumored to have been abandoned there after the last war. The inhabitants hope to find Merlin, which they think will be their ticket to wealth and prosperity. But is Merlin real, or just an old rumor? And if they find it will it save them, or tear them apart?

A galactic war has left the Terran Federation in ruins. Formerly civilized planets have decivilized into barbarism. Space Vikings roam the wreckage, plundering and killing for gain. Lord Lucas Trask of Traskon was no admirer of the Space Vikings, but when murder takes his wife on his wedding day, Trask trades everything he has for his own Space Viking ship and sets out on a galaxy-wide quest for revenge.

An expedition to Mars discovers the remains of an advanced civilization, which died out many thousands of years ago. They recovered books and documents left behind, and are puzzled by their contents. Would the team find their “Rosetta Stone” that would allow them to unlock the Martian language, and learn the secrets of this long-dead race?

Two-hundred years after a global nuclear war, two explorers from a research outpost, that largely survived the cataclysm, discover a settlement of humans who have managed to maintain their civilisation despite ferocious cannibal neighbours, the Scowrers. However, the explorers must turn detective in order to understand the mystery of their hosts philosophy and religion. (Description by Reynard)