Sciences & Techniques

  • This carefully crafted ebook: "Kama Sutra - Annotated (The original english translation by Sir Richard Francis Burton)" is formatted for your eReader with a functional and detailed table of contents. This is the unabridged original english translation (with all the comments and annotations) made by Sir Richard Francis Burton and first published in 1883.
    The Kama Sutra is an ancient Indian Hindu text widely considered to be the standard work on human sexual behavior in Sanskrit literature written by Vatsyayana. A portion of the work consists of practical advice on sexual intercourse. It is largely in prose, with many inserted poetry verses. "Kama" which is one of the three goals of Hindu life, means sensual or sexual pleasure, and "sutra" literally means a thread or line that holds things together, and more metaphorically refers to an aphorism (or line, rule, formula), or a collection of such aphorisms in the form of a manual. Contrary to popular perception, especially in the western world, Kama sutra is not just an exclusive sex manual; it presents itself as a guide to a virtuous and gracious living that discusses the nature of love, family life and other aspects pertaining to pleasure oriented faculties of human life.
    Vatsyayana's Kama Sutra has 1250 verses, distributed in 36 chapters, which are further organized into 7 parts. According to the Burton translation, the contents of the book are structured into 7 parts like the following:
    1. General remarks
    Chapters on contents of the book, three aims and priorities of life, the acquisition of knowledge, conduct of the well-bred townsman, reflections on intermediaries who assist the lover in his enterprises (5 chapters).
    2. Amorous advances/Sexual union
    Chapters on stimulation of desire, types of embraces, caressing and kisses, marking with nails, biting and marking with teeth, on copulation (positions), slapping by hand and corresponding moaning, virile behavior in women, superior coition and oral sex, preludes and conclusions to the game of love. It describes 64 types of sexual acts (10 chapters).
    3. Acquiring a wife
    Chapters on forms of marriage, relaxing the girl, obtaining the girl, managing alone, union by marriage (5 chapters).
    4. Duties and privileges of the wife
    Chapters on conduct of the only wife and conduct of the chief wife and other wives (2 chapters).
    5. Other men's wives
    Chapters on behavior of woman and man, how to get acquainted, examination of sentiments, the task of go-between, the king's pleasures, behavior in the women's quarters (6 chapters).
    6. About courtesans
    Chapters on advice of the assistants on the choice of lovers, looking for a steady lover, ways of making money, renewing friendship with a former lover, occasional profits, profits and losses (6 chapters).
    7. Occult practices
    Chapters on improving physical attractions, arousing a weakened sexual power (2 chapters)

  • This carefully crafted ebook: "On the Origin of Species, 6th Edition + On the Tendency of Species to Form Varieties (The Original Scientific Text leading to "On the Origin of Species")" is formatted for your eReader with a functional and detailed table of contents.
    This work of scientific literature is considered to be the foundation of evolutionary biology. Its full title was On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. For the sixth edition of 1872, the title was changed to The Origin of Species. Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection. It presented a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. Darwin included evidence that he had gathered on the Beagle expedition in the 1830s and his subsequent findings from research, correspondence, and experimentation. Various evolutionary ideas had already been proposed to explain new findings in biology. There was growing support for such ideas among dissident anatomists and the general public, but during the first half of the 19th century the English scientific establishment was closely tied to the Church of England, while science was part of natural theology. Ideas about the transmutation of species were controversial as they conflicted with the beliefs that species were unchanging parts of a designed hierarchy and that humans were unique, unrelated to other animals. The political and theological implications were intensely debated, but transmutation was not accepted by the scientific mainstream.
    The book was written for non-specialist readers and attracted widespread interest upon its publication. As Darwin was an eminent scientist, his findings were taken seriously and the evidence he presented generated scientific, philosophical, and religious discussion. The debate over the book contributed to the campaign by T.H. Huxley and his fellow members of the X Club to secularise science by promoting scientific naturalism. Within two decades there was widespread scientific agreement that evolution, with a branching pattern of common descent, had occurred, but scientists were slow to give natural selection the significance that Darwin thought appropriate. During the "eclipse of Darwinism" from the 1880s to the 1930s, various other mechanisms of evolution were given more credit. With the development of the modern evolutionary synthesis in the 1930s and 1940s, Darwin's concept of evolutionary adaptation through natural selection became central to modern evolutionary theory, now the unifying concept of the life sciences.
    Chapter 1 - Variation Under Domestication
    Chapter 2 - Variation Under Nature
    Chapter 3 - Struggle For Existence
    Chapter 4 - Natural Selection; Or The Survival Of The Fittest
    Chapter 5 - Laws Of Variation
    Chapter 6 - Difficulties Of The Theory
    Chapter 7 - Miscellaneous Objections To The Theory Of Natural Selection
    Chapter 8 - Instinct
    Chapter 9 - Hybridism
    Chapter 10 - On The Imperfection Of The Geological Record
    Chapter 11 - On The Geological Succession Of Organic Beings
    Chapter 12 - Geographical Distribution
    Chapter 13 - Geographical Distribution--Continued
    Chapter 14 - Mutual Affinities Of Organic Beings: Morphology -- Embryology -- Rudimentary Organs
    Chapter 15 - Recapitulation And Conclusion
    Glossary Of The Principal Scientific Terms Used In The Present Volume

  • Henry Ernest Dudeney (1857-1930) was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country's foremost creators of puzzles.

    The Canterbury Puzzles and Other Curious Problems is a 1907 mathematical puzzle book by Henry Dudeney. The first part of the book features a series of puzzles based on the characters from The Canterbury Tales by Geoffery Chaucer.
    The ebook contains illustrations, explanations and answers to each puzzle and is still actual in testing your mathematical skills and your capacity of problem solving.
    "It is a book of remarkable ingenuity and interest."-Educational Times.
    "The most ingenious brain in England ... a fascinating new book."-Evening News.
    "A capital book of posers."-Daily News.
    "The Puzzles ... reach the limit of ingenuity and intricacy; and it is well for the sanity of his readers that the author gives a list of solutions at the end of the book."-Observer.
    "A book that will provide much entertainment for Christmas gatherings ... ingenious puzzles and problems invented by 'Sphinx,' the Puzzle King."-The Captain.
    "Mr. Dudeney, whose reputation is world-wide as the puzzle and problem maker of the age ... sure to find a wide circulation ... as attractive in appearance as its contents are fascinating."-English Mechanic and World of Science.
    "An exceedingly ingenious constructor and solver of fascinating puzzles, mathematical and otherwise."-School Guardian.
    "A book which ought to be highly popular ... it is all mighty ingenious, and very intelligently put before the reader."-Sheffield Telegraph.
    "It is matter for delight that Mr. Henry E. Dudeney has collected into a volume those mysterious puzzles of his which have appeared in many journals ... contains quite a number of ingenious new mental problems ... a valuable introduction."-The Lady.
    "For the long winter evenings Mr. Dudeney's book of puzzledom is to be recommended. Mr. Dudeney has made a study of every kind of puzzle there is ... he supplies you with every kind of brain-twister."-The Daily Chronicle.
    "Took up more of the reviewer's time than he could well afford to give it; he wanted to solve some of the curious problems that it contains, and for ingenious persons who want employment on a wet day, he promises from it abundant scope."-Yorkshire Post.
    "A well-known master puzzler ... provides an abundance of seasonable occupation for the ingenious, with an introduction on the general question of puzzles, which is one of the most interesting parts of the book. He is a skilful inventor."-Nottingham Guardian.
    "Will enjoy the entertainment provided ... ingenious and witty."-The Guardian.
    "Extremely ingenious book, which abounds in problems that will keep the reader busy for hours-until in despair he turns to the answers at the end."-Manchester Guardian.
    "The setting of these perplexities is novel ... a dramatic background being thus provided which prevents too great aridity.... The book should be much in request."-The Morning Leader.