A Students Text Book Of Zoology Vol 2

Author : Adam Sedgwick
Publisher : Forgotten Books
ISBN 13 : 9781330287798
Total Pages : 725 pages
Book Rating : 4.2/5 (877 download)

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Download or read book A Student's Text-Book of Zoology written by Adam Sedgwick and published by Forgotten Books. This book was released on 2015-06-12 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Student's Text-Book of Zoology, Vol. 2 In presenting the second part of my work on Zoology to the public I must apologise for the delay in its appearance and for the fact that I am not keeping to the undertaking which I gave in the preface to my first volume that the work would be completed in two volumes The delay in publication has been caused in part at least by the fact that the Vertebrata compel a lengthier and more detailed treatment than the other groups. Not only is more known about them, but they excite greater interest, and their palaeontological history has been more completely worked out than in the case of any other phylum. The result has been the present bulky volume which deals only with them and with Amphioxus. Embryology is of course excluded, except in the case of Amphioxus, but I have endeavoured to deal fairly fully with anatomy, habits, and classification. In the systematic portions I have probably been too ambitious, but the usefulness of a book of this kind depends largely upon its. completeness in this respect, and in cases of doubt I have generally included rather than excluded. In Aves alone have I made a selection; for there are many excellent works devoted to them and it would be impossible to give anything like a complete list of their genera. In judging the anatomical portions I would ask the reader to remember that this is not exclusively a work on Comparative Anatomy, and limitations of space forbid an exhaustive treatment. This branch of the subject has not, however, been neglected, and questions of general interest have usually been at least touched upon. Considerable space has been given to extinct forms. 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.