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 Species and Varieties written by Hugo de Vries and published by . This book was released on 1904 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt: From time to time the idea has suggested itself to some of the best authorities on the amelioration of plants, that this atavism was not due to an innate tendency, but, in many cases at least, was produced by crosses between neighboring varieties. It is especially owing to Verlot that this side of the question was brought forward. But breeders as a rule have not attached much importance to this supposition, chiefly because of the great practical difficulties attending any attempt to guard the species of the larger cultures against intermixture with other varieties. Bees and humble-bees fly from bud to bud, and carry the pollen from one sort to another, and separation by great distances would be required to avoid this source of impurity. Annotation Published: February 2014.
Download or read book Species and Varieties written by Hugo de Vries and published by IndyPublish.com. This book was released on 1904 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species and Varieties Their Origin by Mutation written by Hugo de Vries and published by . This book was released on 1905 with total page 847 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species and Varieties Their Origin by Mutation written by Hugo De Vries and published by Arkose Press. This book was released on 2015-10 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Tests of Species and Varieties of Vetch for Resistance to the Vetch Bruchid written by John Stuart Pinckney and published by . This book was released on 1941 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species and Varieties written by Hugo de Vries and published by . This book was released on 1904 with total page 894 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 1901 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species and Varieties Their Origin by Mutation written by Hugo Devries and published by . This book was released on 2004-06-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: From time to time the idea has suggested itself to some of the best authorities on the amelioration of plants, that this atavism was not due to an innate tendency, but, in many cases at least, was produced by crosses between neighboring varieties. It is especially owing to Verlot that this side of the question was brought forward. But breeders as a rule have not attached much importance to this supposition, chiefly because of the great practical difficulties attending any attempt to guard the species of the larger cultures against intermixture with other varieties. Bees and humble-bees fly from bud to bud, and carry the pollen from one sort to another, and separation by great distances would be required to avoid this source of impurity.
Download or read book The Different Forms of Flowers on Plants of the Same Species written by Charles Darwin and published by . This book was released on 1884 with total page 386 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 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Debates in Philosophy of Biology written by Francisco J. Ayala and published by John Wiley & Sons. This book was released on 2009-11-19 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of specially commissioned essays puts top scholarshead to head to debate the central issues in the lively and fastgrowing field of philosophy of biology Brings together original essays on ten of the most hotlydebated questions in philosophy of biology Lively head-to-head debate format sharply defines the issuesand paves the way for further discussion Includes coverage of the new and vital area of evolutionarydevelopmental biology, as well as the concept of a unified species,the role of genes in selection, the differences between micro- andmacro-evolution, and much more Each section features an introduction to the topic as well assuggestions for further reading Offers an accessible overview of this fast-growing and dynamicfield, whilst also capturing the imagination of professionalphilosophers and biologists
Download or read book On the Tendency of Species to Form Varieties written by Alfred Russel Wallace and published by Good Press. This book was released on 2021-04-11 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: "On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection" is the name of a journal article that includes two scientific papers that were jointly presented to the Linnean Society of London on July 1st, 1858. The piece also includes an introduction by Joseph Dalton Hooker and Charles Lyell, as well as an abstract of a letter that Darwin wrote to Asa Gray. The Darwin-Wallace hypothesis of evolution through natural selection was initially introduced in the paper, which first appeared in print on August 20, 1858. Darwin was inspired by the papers' presentations to create an abbreviated "abstract" of his "huge book" on Natural Selection. On the Origin of Species, a version of this was released in November 1859.
Download or read book Species and Varieties written by Hugo de Vries (Botaniker, Niederlande) and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species and Varieties Their Origin written by Hugo De Vries and published by Createspace Independent Publishing Platform. This book was released on 2017-05-14 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Species and Varieties, Their Origin By Mutation by Hugo de Vries
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 written by Alfred Russel Wallace and published by Read Books Ltd. This book was released on 2016-05-25 with total page 33 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 Species to form Varieties' is a landmark article on Wallace's ideas of natural selection in relation to 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 SPECIES VARIETIES THEIR ORIG written by Hugo De 1848-1935 Vries and published by Wentworth Press. This book was released on 2016-08-28 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
