Download or read book Amphioxus and the Ancestry of the Vertebrates written by Arthur Willey and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates written by Arthur Willey and published by . This book was released on 1894 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates With a Preface by H F Osborn written by Arthur Willey and published by . This book was released on 1894 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates microform written by Arthur 1867-1942 Willey and published by Legare Street Press. This book was released on 2021-09-09 with total page 346 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 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. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. 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 Amphioxus and the Ancestry of the Vertebrates written by BiblioBazaar and published by Palala Press. This book was released on 2016-05-04 with total page 340 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 Amphioxus and the Ancestry of the Vertebrates microform written by Arthur 1867-1942 Willey and published by Legare Street Press. This book was released on 2021-09-10 with total page 346 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 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. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. 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 Amphioxus And The Ancestry Of The Vertebrates written by b. 1867. Willey (Arthur) and published by . This book was released on 1894 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates Classic Reprint written by Arthur Willey B. Sc and published by Forgotten Books. This book was released on 2018-04-23 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Amphioxus and the Ancestry, of the Vertebrates This volume originated in a course of University lec tures prepared at my suggestion by the author. It seemed important that he should bring within the reach of students and of specialists among other groups, his own extensive observations upon Amphioxus and other remote ancestors of the Vertebrates, as well as the general litera ture upon this group. While our detailed knowledge of the structure and habits of these animals has been rapidly increasing in recent years, it is still in the main very widely scattered in monographs and special papers. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Amphioxus and the Ancestry of the Vertebrates Etc written by Arthur Willey and published by . This book was released on 1894 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates Scholar s Choice Edition written by Arthur Willey and published by Scholar's Choice. This book was released on 2015-02-19 with total page 332 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 Amphioxus and the Ancestry of the Vertebrates Primary Source Edition written by Arthur Willey and published by Nabu Press. This book was released on 2013-12 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Download or read book Amphioxus and the Ancestry of the Vertebrates With a Preface by Henry Fairfield Osborn written by and published by . This book was released on 1894 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphioxus and the Ancestry of the Vertebrates written by and published by . This book was released on 1894 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ancestry of Vertebrates as a Means of Understanding the Principal Features of Their Structure and Development written by H. C. Delsman and published by . This book was released on 1922 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ancestry of the Vertebrates written by Richard Peter Spencer Jefferies and published by . This book was released on 1986 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridging the Gap written by Roberta Jane Beeson and published by . This book was released on 1978 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of the Vertebrate pedigree was a particularly enigmatic problem for evolutionary morphologists of the early post-Darwinian period. At that time, practically no characteristics were known by which the Vertebrates could be linked to any of the other animal groups. Up to the 1850's, most research in embryology and anatomy had reinforced the idea that wide differences existed in the basic structural and developmental patterns of Vertebrates and animals belonging to other branches of the animal kingdom. As a result, morphological practice was affected by a strong tradition against comparison of Vertebrates and Invertebrates. With the acceptance of the evolutionary viewpoint, it became theoretically valid to compare animals of different types, based on the possibility of their remote common ancestry. However, the practical matter of demonstrating that relationship with concrete evidence proved to be one of the most difficult challenges confronting early evolutionary morphology. Three different theories were proposed between 1864 and 1870, each attempting to link the Vertebrates and one of the Invertebrate groups to a hypothetical common ancestor. In 1864, Franz Leydig proposed an evolutionary relationship between Arthropods and Vertebrates; in 1866, Ernst Haeckel attempted to connect Vertebrates with Roundworms; and in 1868, on the basis of new research by Aleksandr Kovalevskii, Haeckel proposed another theory which linked Vertebrates with Tunicates. The proposals which formed the basis of the Tunicate theory became the center of a heated debate in the late 1860's and early 1870's. As a result of new research and criticism related to this debate, Haeckel made significant modifications in a revised version of the Tunicate theory which was published in 1874. In this dissertation, the problem of Vertebrate ancestry is presented as a testing ground for the newlyemerging principles of evolutionary morphology. The content and reception of the first three theories of Vertebrate ancestry are examined and compared and the development of the Tunicate theory is traced from its original form as a provisional hypothesis to its later form as a definitive theory. Particular emphasis has been placed on describing and analyzing the scientific work on which support and criticism of the various theories of Vertebrate ancestry was based, and in determining the working principles that various morphologists applied in approaching the problem of Vertebrate ancestry. Such an emphasis demonstrates that a wide variety of philosophical, methodological and empirical concerns existed within the world community of evolutionary morphologists during the early post-Darwinian period. By testing the applicability of their various viewpoints to the solution of the problem of Vertebrate ancestry, these morphologists made significant contributions to the conceptual progress of evolutionary morphology, particularly to the development of a new, genetic concept of homology.
Download or read book Before the Backbone written by H. Gee and published by Springer Science & Business Media. This book was released on 2007-07-27 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: We cannot catechise our stony ichthyolites, as did the necromantic lady of the Arabian Nights did the coloured fishes of the lake which had once been a city, when she touched their dead bodies with her wand, and they straightaway raised their heads and rephed to her queries. We would have many a question to ask them if we could - questions never to be solved. Hugh Miller, The Old Red Sandstone When I started this book in 1991, the subject of vertebrate origins was fusty and unfashionable. Early drafts for this preface read like an extend ed complaint at the lot of traditional morphologists, cast aside by the march of modern molecular biology. But no longer - this book should reach you at a time of renewed inter est in the origin of the vertebrates, our own particular corner of creation. For although the topic has excited interest for well over a century, molec ular biology has only lately achieved the maturity necessary to test its predictions. As a legitimate field of study, it is fashionable again.
