Report on the Hydroida Dredged by H. M.S. Challenger During the Years 1873-76 (Classic Reprint) PDF Download
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Author: G. J. Allman
Publisher:
ISBN: 9781332875887
Category : Science
Languages : en
Pages : 140
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Book Description
Excerpt from Report on the Hydroida Dredged by H. M.S. Challenger During the Years 1873-76 The Opportunities of examining the Hydroida in a living state, or even in dead speci mens which have the soft parts sufficiently well preserved, are so comparatively few, that the systematist is compelled to have recourse to the chitinous periderm, as affording almost the only available grounds for determination and classification. 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.
Author: G. J. Allman
Publisher:
ISBN: 9781332875887
Category : Science
Languages : en
Pages : 140
Get Book Here
Book Description
Excerpt from Report on the Hydroida Dredged by H. M.S. Challenger During the Years 1873-76 The Opportunities of examining the Hydroida in a living state, or even in dead speci mens which have the soft parts sufficiently well preserved, are so comparatively few, that the systematist is compelled to have recourse to the chitinous periderm, as affording almost the only available grounds for determination and classification. 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.
Author: George James Allman
Publisher: Palala Press
ISBN: 9781377942995
Category : History
Languages : en
Pages : 144
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Book Description
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.
Author: George James Allman
Publisher:
ISBN:
Category : Challenger Expedition
Languages : en
Pages : 55
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Book Description
Author: George James Allman
Publisher:
ISBN:
Category : Challenger Expedition
Languages : en
Pages : 90
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Book Description
Author: George James Allman
Publisher:
ISBN:
Category : Hydromedusae
Languages : en
Pages : 54
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: George James Allman
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: George James Allman
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Theodore Lyman
Publisher:
ISBN:
Category : Challenger Expedition
Languages : en
Pages : 386
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Book Description
Author: Ernst Haeckel
Publisher:
ISBN: 9781333025281
Category : Science
Languages : en
Pages : 676
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Book Description
Excerpt from Report on the Scientific Results of the Voyage of H. M.S. Challenger During the Years 1873-76, Vol. 28: Zoology According to the present opinion of most zoologists, which we also share, the low sessile Hydropolyp form is the more primitive; the higher Hydromedusa form has been secondarily developed at a much later stage, and that by adaptation to a free swimming mode of life. In this way has the characteristic swimming organ of the Medusae arisen, namely, the umbrella, with its radially constructed gelatinous disc, which was entirely absent in'the primitive ancestral forms - the Polyps. The most important structure of the latter, however, the gastral tube (inherited from the Gastraea), has been transmitted to the Medusae, and has-become the'-manubrium, in the wall of which the generative products are developed. 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.
