Bøger af Charles Darwin

""A Monograph on the Sub-Class Cirripedia: With Figures of All the Species"" is a scientific book written by Charles Darwin and published in 1854. The book is a comprehensive study of the sub-class Cirripedia, which includes barnacles and other similar crustaceans. Darwin provides detailed descriptions of the anatomy, behavior, and classification of all known species of Cirripedia, accompanied by numerous illustrations and diagrams. The book is considered a landmark in the study of marine biology and is still widely referenced by scientists today. Darwin's observations and insights into the evolution of these creatures also foreshadowed many of his later ideas about natural selection and the origin of species. Overall, ""A Monograph on the Sub-Class Cirripedia"" is a seminal work in the field of marine biology and a testament to Darwin's scientific acumen and attention to detail.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.

Charles Robert Darwin, FRS FRGS FLS FZS was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution.

THE NATURE of the following work will be best understood by a brief account of how it came to be written. During many years I collected notes on the origin or descent of man, without any intention of publishing on the subject, but rather with the determination not to publish, as I thought that I should thus only add to the prejudices against my views. It seemed to me sufficient to indicate, in the first edition of my Origin of Species, that by this work "light would be thrown on the origin of man and his history"; and this implies that man must be included with other organic beings in any general conclusion respecting his manner of appearance on this earth. Now the case wears a wholly different aspect. When a naturalist like Carl Vogt ventures to say in his address as President of the National Institution of Geneva (1869), "personne, en Europe au moins, n'ose plus soutenir la creation independante et de toutes pieces, des especes," it is manifest that at least a large number of naturalists must admit that species are the modified descendants of other species; and this especially holds good with the younger and rising naturalists. The greater number accept the agency of natural selection; though some urge, whether with justice the future must decide, that I have greatly overrated its importance. Of the older and honoured chiefs in natural science, many unfortunately are still opposed to evolution in every form.

A revolving tendril, though inclined during the greater part of its course at an angle of about 45 degrees (in one case of only 37 degrees) above the horizon, stiffened and straightened itself from tip to base in a certain part of its course, thus becoming nearly or quite vertical. I witnessed this repeatedly; and it occurred both when the supporting internodes were free and when they were tied up; but was perhaps most conspicuous in the latter case.

This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.

This Is A New Release Of The Original 1909 Edition.

A Monograph on the Sub-class Cirripedia (Volume 1); The Lepadidae; Or, Pedunculated Cirripedes, a classical book, has been considered important throughout the human history, and so that this work is never forgotten we at Alpha Editions have made efforts in its preservation by republishing this book in a modern format for present and future generations. This whole book has been reformatted, retyped and designed. These books are not made of scanned copies of their original work and hence the text is clear and readable.

De l'origine des espèces, un livre classique, a été considéré comme important tout au long de l'histoire humaine, et pour que cet ouvrage ne soit jamais oublié, nous, aux éditions Alpha, nous sommes efforcés de le préserver en republiant ce livre dans un format moderne pour les générations présentes et futures. Tout ce livre a été reformaté, retapé et conçu. Ces livres ne sont pas constitués de copies numérisées de leur travail original et, par conséquent, le texte est clair et lisible.

A Monograph on the Sub-class Cirripedia (Volume 2); The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., a classical book, has been considered important throughout the human history, and so that this work is never forgotten we at Alpha Editions have made efforts in its preservation by republishing this book in a modern format for present and future generations. This whole book has been reformatted, retyped and designed. These books are not made of scanned copies of their original work and hence the text is clear and readable.

Observations Géologiques sur les Îles Volcaniques Explorées par l'Expédition du "Beagle" Et Notes sur la Géologie de l'Australie et du Cap de Bonne-Espérance, un livre classique, a été considéré comme important tout au long de l'histoire humaine, et pour que cet ouvrage ne soit jamais oublié, nous, aux éditions Alpha, nous sommes efforcés de le préserver en republiant ce livre dans un format moderne pour les générations présentes et futures. Tout ce livre a été reformaté, retapé et conçu. Ces livres ne sont pas constitués de copies numérisées de leur travail original et, par conséquent, le texte est clair et lisible.

Un editor alemán me escribió pidiéndome un informe sobre la evolución de mi mente y mi carácter, junto con un esbozo autobiográfico, y pensé que el intento podría entretenerme y resultar, quizá, interesante para mis hijos o para mis nietos. Sé que me habría interesado considerablemente haber leído algún bosquejo de la mente de mi abuelo compuesto por él mismo, por más breve y mortecino que fuera; de lo que pensó y de lo que hizo y de cómo trabajaba. He intentado escribir el siguiente relato sobre mi propia persona como si yo fuera un difunto que, situado en otro mundo, contempla su existencia retrospectivamente, lo cual tampoco me ha resultado difícil, pues mi vida ha llegado casi a su final. Al escribir, no me he esmerado nada en cuanto al estilo. Nací en Shrewsbury, el 12 de febrero de 1809. Mi padre, según le oí decir, creía que los recuerdos de las personas de mente poderosa se remontaban, en general, muy atrás, hasta períodos muy tempranos de su vida. No es mi caso, pues mi recuerdo más temprano se retrotrae únicamente a unos pocos meses después de haber cumplido cuatro años, cuando fuimos a tomar baños de mar cerca de Abergele; me acuerdo con cierta nitidez de algunos sucesos y lugares de entonces.

Cuando comparamos los individuos de la misma variedad o subvariedad de nuestras plantas y animales cultivados más antiguos, una de las primeras cosas que nos impresionan es que generalmente difieren más entre sí que los individuos de cualquier especie en estado natural; y si reflexionamos en la gran diversidad de plantas y animales que han sido cultivados y que han variado durante todas las edades bajo los más diferentes climas y tratos, nos vemos llevados a la conclusión de que esta gran variabilidad se debe a que nuestras producciones domésticas se han criado en condiciones de vida menos uniformes y algo diferentes de aquellas a que ha estado sometida en la naturaleza la especie madre. Hay, pues, algo de probable en la opinión propuesta por Andrew Knight, de que esta variabilidad puede estar relacionada, en parte, con el exceso de alimento. Parece claro que los seres orgánicos, para que se produzca alguna variación importante, tienen que estar expuestos durante varias generaciones a condiciones nuevas, y que, una vez que el organismo ha empezado a variar, continúa generalmente variando durante muchas generaciones. No se ha registrado un solo caso de un organismo variable que haya cesado de variar sometido a cultivo. Las plantas cultivadas más antiguas, tales como el trigo, producen todavía nuevas variedades; los animales domésticos más antiguos son capaces de modificación y perfeccionamiento rápidos.

The Structure and Distribution of Coral Reefs - Third Edition is an unchanged, high-quality reprint of the original edition of 1897.Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres. As a publisher we focus on the preservation of historical literature. Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the future.