Download or read book On the Tendency of Varieties to Depart Indefinitely From the Original Type written by Alfred Russel Wallace and published by Read Books Ltd. This book was released on 2016-05-25 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This early work by Alfred Russel Wallace was originally published in 1858 and we are now republishing it with a brand new introductory biography. 'On the Tendency of Varieties to Depart Indefinitely From the Original Type' is a short article on variation and evolutionary theory. Alfred Russel Wallace was born on 8th January 1823 in the village of Llanbadoc, in Monmouthshire, Wales. Wallace was inspired by the travelling naturalists of the day and decided to begin his exploration career collecting specimens in the Amazon rainforest. He explored the Rio Negra for four years, making notes on the peoples and languages he encountered as well as the geography, flora, and fauna. While travelling, Wallace refined his thoughts about evolution and in 1858 he outlined his theory of natural selection in an article he sent to Charles Darwin. Wallace made a huge contribution to the natural sciences and he will continue to be remembered as one of the key figures in the development of evolutionary theory.
Download or read book Contributions to the Theory of Natural Selection written by Alfred Russel Wallace and published by . This book was released on 1870 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Tendency of Species to Form Varieties written by Charles Darwin and published by . This book was released on 1858 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bad Times and On the Tendency of Varieties to Depart Indefinitely from the Original Type written by Alfred Russel Wallace and published by Library of Alexandria. This book was released on 2020-09-28 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present Depression of Trade is remarkable, not so much for its intensity or for its extent—in both of which respects it has been equalled or surpassed on previous occasions, but for its persistence during the long period of eleven years. The late Professor Fawcett, in his Free Trade and Protection (p. 151), says: “The industrial depression is generally thought to have commenced in the closing months of 1874;” and during every succeeding year it has continued to be felt with more or less severity, and its remarkable persistence has been commented on by politicians and public writers. Usually a period of depression is quickly followed by one of comparative prosperity. Such a reaction has been again and again predicted in this case; but up to the present time there are no satisfactory indications that the evil days are passing away. It is evident, therefore, that we are suffering in an altogether exceptional manner, that the disease of the social organism is due to causes or combinations of causes which have not been in action on former occasions, and that the remedial agencies which have been effective on former occasions of depression have now failed us. We thus find ourselves confronted with a problem of vital importance to our well-being as a nation. We are called upon to explain why it is that, notwithstanding the exceptional advantages we possess, in an ever-increasing command over the more recondite powers of nature, an ever-increasing use of labour-saving machinery, a body of labourers whose industry and skill are proverbial, and far more complete and perfect communication with the whole world than was possessed by any previous generation—notwithstanding all these favourable conditions, which would seem to render prosperity certain, we yet find trade crippled and labour paralysed, goods of all kinds selling at unremunerative prices, yet the masses too poor to buy, and universal complaints of diminished profits and restricted markets. So long as these questions are not fully and completely answered, so long as a remedy is not found for the widespread and persistent evil which afflicts the mass of our people, our whole system of social economy, even our civilisation itself, must be accounted to be failures. It will undoubtedly be admitted that a system of society under which willing hands cannot find profitable work, and countless shops and warehouses overflowing with every necessary, comfort, and luxury, mock the longing eyes of insufficiently-clad and half-starved millions, is neither a sound nor a safe one. We may therefore expect to find that the problem of trade-depression is fundamentally the same as that of the persistence of widespread poverty and pauperism notwithstanding our rapid and continuous growth in wealth; and if this be so, its solution will assuredly furnish us with some important principles to direct the course of future legislation. The main points of a sound political programme may be one of the important results of a successful investigation into the causes which have brought about the present depression of trade.
Download or read book Wallace Darwin and the Origin of Species written by James T. Costa and published by Harvard University Press. This book was released on 2014-06-16 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Darwin is credited with discovering evolution through natural selection, but Alfred Russel Wallace saw the same process at work in nature and elaborated the same theory. Dispelling misperceptions of Wallace as a secondary figure, James Costa reveals the two naturalists as equals in advancing one of the greatest scientific discoveries of all time.
Download or read book Contributions to the Theory of Natural Selection written by Alfred Russel Wallace and published by Briar Bird Press. This book was released on 2015-05-13 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alfred Russel Wallace is best known as the co-originator of the theory of evolution by natural selection, an honor he shares with his contemporary Charles Darwin. Among the ten essays in this volume is his seminal paper on natural selection, "On the Tendency of Varieties to Depart Indefinitely from the Original Type," which was presented with Darwin's "On the Origin of Species" at a meeting of the Linnean Society of London in July 1858. This edition of Wallace's "Contributions to the Theory of Natural Selection" is the first entry in the Foundations of Biological Thought series published by Briar Bird Press. The series presents the pivotal works of 19th century naturalists remastered for modern readers. Meticulously edited, these volumes preserve the author's intent in design and content, including the manuscript's original annotations and amendments. In addition, revised page references and editor's notes are included throughout to retain the utility of the works for both study and reference.
Download or read book A Delicate Arrangement written by Arnold C. Brackman and published by Crown. This book was released on 1980 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes two essays by Wallace, "On the law which has regulated the introduction of new species" and "On the tendency of varieties to depart indefinitely from the original type."
Download or read book On the Tendency of Species to Form Varieties and on the Perpetuation of Varieties and Species by Natural Means of Selection by Charles Darwin Delphi Classics Illustrated written by Charles Darwin and published by Delphi Classics. This book was released on 2017-07-17 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook features the unabridged text of ‘On the Tendency of Species to Form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection by Charles Darwin - Delphi Classics (Illustrated)’ from the bestselling edition of ‘The Complete Works of Charles Darwin’. Having established their name as the leading publisher of classic literature and art, Delphi Classics produce publications that are individually crafted with superior formatting, while introducing many rare texts for the first time in digital print. The Delphi Classics edition of Darwin includes original annotations and illustrations relating to the life and works of the author, as well as individual tables of contents, allowing you to navigate eBooks quickly and easily. eBook features: * The complete unabridged text of ‘On the Tendency of Species to Form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection by Charles Darwin - Delphi Classics (Illustrated)’ * Beautifully illustrated with images related to Darwin’s works * Individual contents table, allowing easy navigation around the eBook * Excellent formatting of the textPlease visit www.delphiclassics.com to learn more about our wide range of titles
Download or read book On the Law Which Has Regulated the Introduction of New Species written by Alfred Russel Wallace and published by Read Books Ltd. This book was released on 2016-05-25 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This early work by Alfred Russel Wallace was originally published in 1855 and we are now republishing it with a brand new introductory biography. 'On the Law Which Has Regulated the Introduction of New Species' is an article that details Wallace's ideas on the natural arrangement of species and their successive creation. Alfred Russel Wallace was born on 8th January 1823 in the village of Llanbadoc, in Monmouthshire, Wales. Wallace was inspired by the travelling naturalists of the day and decided to begin his exploration career collecting specimens in the Amazon rainforest. He explored the Rio Negra for four years, making notes on the peoples and languages he encountered as well as the geography, flora, and fauna. While travelling, Wallace refined his thoughts about evolution and in 1858 he outlined his theory of natural selection in an article he sent to Charles Darwin. Wallace made a huge contribution to the natural sciences and he will continue to be remembered as one of the key figures in the development of evolutionary theory.
Download or read book The Letter from Ternate written by Alfred Russel Wallace and published by . This book was released on 2013 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Darwin s Shadow written by Michael Shermer and published by Oxford University Press. This book was released on 2002-08-15 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtually unknown today, Alfred Russel Wallace was the co-discoverer of natural selection with Charles Darwin and an eminent scientist who stood out among his Victorian peers as a man of formidable mind and equally outsized personality. Now Michael Shermer rescues Wallace from the shadow of Darwin in this landmark biography. Here we see Wallace as perhaps the greatest naturalist of his age--spending years in remote jungles, collecting astounding quantities of specimens, writing thoughtfully and with bemused detachment at his reception in places where no white man had ever gone. Here, too, is his supple and forceful intelligence at work, grappling with such arcane problems as the bright coloration of caterpillars, or shaping his 1858 paper on natural selection that prompted Darwin to publish (with Wallace) the first paper outlining the theory of evolution. Shermer also shows that Wallace's self-trained intellect, while powerful, also embraced surprisingly naive ideas, such as his deep interest in the study of spiritual manifestations and seances. Shermer shows that the same iconoclastic outlook that led him to overturn scientific orthodoxy as he worked in relative isolation also led him to embrace irrational beliefs, and thus tarnish his reputation. As author of Why People Believe Weird Things and founding publisher of Skeptic magazine, Shermer is an authority on why people embrace the irrational. Now he turns his keen judgment and incisive analysis to Wallace's life and his contradictory beliefs, restoring a leading figure in the rise of modern science to his rightful place.
Download or read book Adaptation and Natural Selection written by George Christopher Williams and published by Princeton University Press. This book was released on 2018-10-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological evolution is a fact—but the many conflicting theories of evolution remain controversial even today. When Adaptation and Natural Selection was first published in 1966, it struck a powerful blow against those who argued for the concept of group selection—the idea that evolution acts to select entire species rather than individuals. Williams’s famous work in favor of simple Darwinism over group selection has become a classic of science literature, valued for its thorough and convincing argument and its relevance to many fields outside of biology. Now with a new foreword by Richard Dawkins, Adaptation and Natural Selection is an essential text for understanding the nature of scientific debate.
Download or read book Naturally Selected Original Readings in Biological Evolution written by David Lane and published by Lulu.com. This book was released on 2016-09-05 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contains four original papers that are fundamental to our understanding of modern biology, including Gregor Mendel's Experiments in Plant Hybridization, Alfred Russel Wallace's On the Tendency of Varieties to Depart Indefinitely from the Original Type, Thomas H. Huxley's initial review of Darwin's On Origin of Species, and James Watson and Francis Crick's paper groundbreaking paper Molecular Structure of Nucleic Acids.
Download or read book Natural Selection and Tropical Nature written by Alfred Russel Wallace and published by . This book was released on 1895 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charles Darwin In Cambridge The Most Joyful Years written by John Van Wyhe and published by World Scientific. This book was released on 2014-05-27 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charles Darwin's years as a student at the University of Cambridge were some of the most important and formative of his life. Thereafter he always felt a particular affection for Cambridge. For a time he even considered a Cambridge professorship as a career and sent three of his sons there to be educated. Unfortunately the remaining traces of what Darwin actually did and experienced in Cambridge have long remained undiscovered. Consequently his day-to-day life there has remained unknown and misunderstood. This book is based on new research, including newly discovered manuscripts and Darwin publications, and gathers together recollections of those who knew Darwin as a student. This book therefore reveals Darwin's time in Cambridge in unprecedented detail.
Download or read book Species and Varieties Their Origin by Mutation written by Hugo de Vries and published by . This book was released on 1904 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Alfred Russel Wallace Reader written by Alfred Russel Wallace and published by JHU Press. This book was released on 2002 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Explore[s] the extraordinary range of Wallace's interests, which encompassed ecology, evolution, spiritualism, and socialism." -- Science
