Report of the Canadian Arctic Expedition, 1913-18, Vol. 9 PDF Download
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Author: Ralph Vary Chamberlin
Publisher: Forgotten Books
ISBN: 9780365590828
Category : Science
Languages : en
Pages : 54
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Book Description
Excerpt from Report of the Canadian Arctic Expedition, 1913-18, Vol. 9: Annelids, Parasitic Worms, Protozoans, Etc.; Part B: Polychaeta; Southern Party, 1913-16 The' Institute has attempted to obtain the best original copy available for filming. Features of this copy which may be bibliographically unique. Which may alter any of the Images in the reproduction. Or which may significantly change the usual method of filming are checked below. 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: Ralph Vary Chamberlin
Publisher: Forgotten Books
ISBN: 9780365590828
Category : Science
Languages : en
Pages : 54
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Book Description
Excerpt from Report of the Canadian Arctic Expedition, 1913-18, Vol. 9: Annelids, Parasitic Worms, Protozoans, Etc.; Part B: Polychaeta; Southern Party, 1913-16 The' Institute has attempted to obtain the best original copy available for filming. Features of this copy which may be bibliographically unique. Which may alter any of the Images in the reproduction. Or which may significantly change the usual method of filming are checked below. 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:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: A. R. Cooper
Publisher: Forgotten Books
ISBN: 9781390333817
Category : Science
Languages : en
Pages : 40
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Book Description
Excerpt from Report of the Canadian Arctic Expedition, 1913-18, Vol. 9: Annelids, Parasitic Worms, Protozoans, Etc.; Part G-H, Trematoda and Cestoda Blank leaves added during restorations may appear within the text. Whenever possible, these have been omitted from filming ll se peut qua certaines pages blanches ajoutées lors d'une restau ration apparaissent dans le texte. Mais. Lorsque cela était possible, ces pages n'ont pas été filmées. 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: J. H. Ashworth
Publisher: Forgotten Books
ISBN: 9780243961665
Category : Science
Languages : en
Pages : 20
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Book Description
Excerpt from Report of the Canadian Arctic Expedition 1913-18, Vol. 9: Annelids Parasitic Worms, Protozoans, Etc.; Part J: Polychaeta (Supplementary); Southern Party, 1913-16 The present position of our knowledge of A. Glacialis would seem to be best sum-med up by the statement that this species has been derived from A. Marina - t'r.om which it is apparently 'a comparatively recent ofi'shoot-by a reduction in the number of chaetiferous segments' and of gills. If this should prove to be the only difierence, the question as to whet-her _a. Glacial'is is a distinct species or only a variety would require consideration. In 1903 I had to consider a similar though simpler case in' the species A. Assimilis, which is represented by a forma typica with twenty chaetiferous segments 'and thirteen pairs of gills, the first on the eighth segment, and by a form with nineteen segments and thirteen pairs of gills, the first on the seventh segment, but otherwise their characters are identical. Although these-differ in this constant and striking manner, I decided that it would be better to regard the second form as a variety - var., affinis - rather than as a'dist-inet species. T he difference between A. Marina and A. Glacialis is, however, a matter _oi two segments' and indicates a greater divergence, aflording more justification for specific distinction, and-l suggest that as A. Glacialis has been described as a separate species it may be retained as such; it is a convenient designation for those specimens of the genus with seventeen chaotiferous segments and eleyen pairs of small gills. Which up to the present have been obtained only on'the arctic shore of northwest America. 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: Canadian Arctic Expedition
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 196
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Author: H. J. van Cleave
Publisher: Forgotten Books
ISBN: 9780365675686
Category : Science
Languages : en
Pages : 24
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Excerpt from Report of the Canadian Arctic Expedition, 1913-18, Vol. 9: Annelids, Parasitic Worms, Protozoans, Etc.; Part E, Acanthocephala Echinorhynchus coregoni Linkins tin Van Cleave. Ll'late II. L-igs. I and II ('olol as the preeeding spuries (johansen's notes). Spenhc the eharaeters of the genus. Iales it to 7) mm. Long, with a maximum diameter at about the anterior fourth of the body 0-8 to 1415 mm. Females 3 to 10 mm. Long. With maximum diameter of 0-6 to 1-7 mm. Proboscis eylindrical, 'arrying twelve to fifteen longitudinal rows of books. Eaeh with ten or eleven hooks. Hooks not erowded on proboseis. Basal hooks 28 to 53 a. Long; those on middle of proboseis ti?) to 81) y long; those near anterior t-ip smaller and weaker than those on middle of prohoseis. Ventral hooks slightly larger and stronger than dorsal. Lemaisei not longer than proboseis receptacle. ('ement glands of male in a eompaet mass. Embryos within body 'zivity of gravid female 51 to 91 p long by IT to 20 M wide, with a slight. Approximately globular. Prolongation of the middle membrane at raeh pole. 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:
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 772
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Author: Canada. Department of the Naval Service
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 28
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Author: H J Van Cleave
Publisher: Forgotten Books
ISBN: 9780259412564
Category :
Languages : en
Pages : 20
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Excerpt from Report of the Canadian Arctic Expedition, 1913-18, Vol. 9: Annelids, Parasitic Worms, Protozoans, Etc.; Part E: Acanthocephala; Southern Party, 1913-16 In so far as the present writer is aware there are no published records of the occurrence of Acanthocephala in the arctic fauna of North America. The collections obtained by the Canadian Arctic Expedition thus offer an opportunity of making a start toward the study of this interesting fauna] region. 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:
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 288
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