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Journal of Morphology, 1897, Vol. 12 (Classic Reprint) download ebook
Journal of Morphology, 1897, Vol. 12 (Classic Reprint) download ebook

Journal of Morphology, 1897, Vol. 12 (Classic Reprint) by Wistar Institute of Anatomy and Biology

Journal of Morphology, 1897, Vol. 12 (Classic Reprint)
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Author: Wistar Institute of Anatomy and Biology
Number of Pages: 538 pages
Published Date: 27 Sep 2015
Publisher: Forgotten Books
Publication Country: United States
Language: English
ISBN: 9781330546420
File size: 34 Mb
Download Link: Journal of Morphology, 1897, Vol. 12 (Classic Reprint)
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Excerpt from Journal of Morphology, 1897, Vol. 12 Polar rings have been observed in Clepsine by Grube, Leuckart, Robin, and Whitman, in Rhynchelmis, by Vejdovsky, and in Allolobophora foetida by the author. In the present paper I hope to prove that the polar rings and the so-called yolk-nucleus are one and the same substance, and that therefore the material which forms these structures is by no means confined to the three forms just mentioned. In the fall of 1894, I identified the granular masses of cytoplasm found in the ovarian egg with the polar rings of later stages, and traced the substance step by step during the growth of the maturing and fertilized egg; but the publication of this work was reserved to form part of a later paper on the maturation and fertilization of the egg of Allolobophora foetida. 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.

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