Download or read book Studies in the Development of Crinoids written by Th Mortensen and published by . This book was released on 1920 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Development of Crinoids written by Theodor Mortensen and published by . This book was released on 1920 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Development of Crinoids written by Theodor Mortensen and published by . This book was released on 1920 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Development of Crinoids written by Ole Theodor Jensen MORTENSEN and published by . This book was released on 1920 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STUDIES IN THE DEVELOPMENT OF written by Th (Theodor) 1868-1952 Mortensen and published by Wentworth Press. This book was released on 2016-08-29 with total page 166 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 Studies in the Development of Crinoids written by Th 1868-1952 Mortensen and published by Palala Press. This book was released on 2016-05-24 with total page 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 Studies in the Development of Crinoids written by Theodor Mortensen and published by Andesite Press. This book was released on 2015-08-09 with total page 158 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 Studies in the Development of Crinoids written by Th; Mortensen and published by Forgotten Books. This book was released on 2015-07-20 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Studies in the Development of Crinoids, Vol. 16 During a stay on the island of Tobago, British West Indies, in March and April, 1916, with the expedition of the Carnegie Institution of Washington, I succeeded in rearing the young of the Crinoid Tropiometra carinata from the egg up to the fixed stage and also in keeping the Pentacrinoids alive for some time, until the appearance of the first radials. Since our previous knowledge of the embryological development of Crinoids is based exclusively on the European species, Antedon bifida, A. mediterranea, and A. adriatica, all being at least very closely related, it is of no small interest to become acquainted with the embryology of a species belonging to another genus, and even to another family. To generalize from a single type and apply the facts to a whole order is dangerous. It is only through the study of the embryology of different types that we can form a true judgment as to which features are of general and which only of specific value in the developmental history of this and other groups of echinoderms. Although it would be more interesting and important to have the embryology of some stalked Crinoid worked out, I think the facts made known through the present study will be found to be of some value and to represent progress. I have included in this memoir a report on the development of some other Crinoids, namely, Compsometra serrata (A. H. Clark), from Japan, Florometra serratissima (A. H. Clark), from the Strait of Georgia, Isometra vivipara Mortensen, Notocrinus virilis Mortensen, and Thaumatometra nutriz Mortensen, all three from the Antarctic Sea. As to the two first named, I succeeded in getting material for the study of their development during my voyage in the Pacific in 1914-15. For the three other species I am indebted to Professor O. Nordenskjold, of Gothenburg, who sent to me the whole of the collection of Crinoids made by the Swedish Antarctic Expedition (1901-03), including the "Antedon hirsuta" of Dr. K. A. Andersson (Isometra vivipara), the first truly viviparous Crinoid known. Of this species, material was found for the study of the whole development from the egg until the Pentacrinoid is ready to detach itself from the stalk. Then I had the great pleasure of finding in this material two more new viviparous forms, namely, Notocrinus virilis and Thaumatometra nutrix. Although only some larval stages were found of the former species and the Pentacrinoid stages of the latter, several important facts were disclosed thereby. 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 Studies in the Development of Crinoids Primary Source Edition written by Theodor Mortensen and published by Nabu Press. This book was released on 2014-02-22 with total page 158 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. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Studies In The Development Of Crinoids; Volume 16 Of Paper; Tortugas Laboratory; Issue 294 Of Publication - Carnegie Institution Of Washington; Issue 294 Of Carnegie Institution Of Washington Publication; Volume 16 Of Papers (Carnegie Institution Of Washington. Tortugas Laboratory); Volume 16 Of Papers From The Department Of Marine Biology Of The Carnegie Institution Of Washington; Volume 16 Of Papers From The Tortugas Laboratory Of The Carnegie Institution Of Washington Theodor Mortensen Carnegie Institution of Washington, 1920 Crinoidea
Download or read book Studies in the Development of Crinoids Vol 16 Classic Reprint written by Th Mortensen and published by Forgotten Books. This book was released on 2017-10-12 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Studies in the Development of Crinoids, Vol. 16 Thus the present memoir contains the description of the complete, or nearly complete, development of three new types of Crinoids and of part of the development of three other types. 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 Paper written by Carnegie Institution of Washington. Department of Marine Biology and published by . This book was released on 1908 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Crinoids written by Hans Hess and published by Cambridge University Press. This book was released on 2002 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crinoids have graced the oceans for more than 500 million years. Among the most attractive fossils, crinoids had a key role in the ecology of marine communities through much of the fossil record, and their remains are prominent rock forming constituents of many limestones. This is the first comprehensive volume to bring together their form and function, classification, evolutionary history, occurrence, preservation and ecology. The main part of the book is devoted to assemblages of intact fossil crinoids, which are described in their geological setting in twenty-three chapters ranging from the Ordovician to the Tertiary. The final chapter deals with living sea lilies and feather stars. The volume is exquisitely illustrated with abundant photographs and line drawings of crinoids from sites around the world. This authoritative account recreates a fascinating picture of fossil crinoids for paleontologists, geologists, evolutionary and marine biologists, ecologists and amateur fossil collectors.
Download or read book Evolution and Classification of Paleozoic Crinoids written by Raymond Cecil Moore and published by Geological Society of America. This book was released on 1943 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Crinoid Arms in Studies of Phylogeny written by Elvira Wood and published by . This book was released on 1915 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Monograph of the Existing Crinoids written by Austin Hobart Clark and published by . This book was released on 1931 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Monograph of the Existing Crinoids written by Austin Hobart Clark and published by . This book was released on 1967 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
