Author: E. G. Conklin

Publisher: Forgotten Books

Published: 2017-09-15

Total Pages: 464

ISBN-13: 9781527859869

Excerpt from Biological Bulletin of the Marine Biological Laboratory, Vol. 36: Woods Hole, Mass Fol first intimated that the membrane lifts from the egg as a wave dwelling on the rapidity with which the process is com pleted. Unfortunately he used eggs under pressure. Mem brane formation as a progressive wave beginning at the site of sperm-entrance has been observed by Wilson who, however, is not at all sure. He says (in a footnote): I have often observed that the formation of the membrane, in T oxopneustes, proceeds like a wave from the entrance-point around the periphery, but this is often irregular. Ries followed the fertilization with the cinematograph; he observed changes which indicated that the membrane forms first at one point. 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.