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Embryology of Insects and Myriapods (Classic Reprint)

Oskar Augustus Johannsen

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Description:Excerpt from Embryology of Insects and MyriapodsThis text is the outgrowth of a course of lectures on the embryology of insects given by the senior author over a period of twenty years and now being continued by the junior author. It goes without saying that more is offered here than is presented in the time allotted to the subject in Cornell University. From year to year new topics were introduced and old ones laid by so that now from the accumulated subject matter the material for this book has been selected. It may well be, in the opinion of some readers, that certain phases of the subject, have been overemphasized and others have not been sufficiently stressed. To this can be said only that an effort has been made to present as balanced a treatment as the available material permits and that research students must of necessity refer to original sources for details that limitation of space prevents being included here.The authors have endeavored to preserve an impartial attitude on controversial questions - presenting in Part I the chief views on debat able points and in the chapters of Part II reﬂecting the Opinions of the several investigators on the subject of their research. Nowhere in the developmental history of the arthropods has the debate been more lively and at times more acrimonious than that relating to the origin of the mid-gut. The student is therefore warned after reading an account of the development of some species in the second part to turn to the first part for a discussion of points of questionable interpretation.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Embryology of Insects and Myriapods (Classic Reprint). To get started finding Embryology of Insects and Myriapods (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
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Description: Excerpt from Embryology of Insects and MyriapodsThis text is the outgrowth of a course of lectures on the embryology of insects given by the senior author over a period of twenty years and now being continued by the junior author. It goes without saying that more is offered here than is presented in the time allotted to the subject in Cornell University. From year to year new topics were introduced and old ones laid by so that now from the accumulated subject matter the material for this book has been selected. It may well be, in the opinion of some readers, that certain phases of the subject, have been overemphasized and others have not been sufficiently stressed. To this can be said only that an effort has been made to present as balanced a treatment as the available material permits and that research students must of necessity refer to original sources for details that limitation of space prevents being included here.The authors have endeavored to preserve an impartial attitude on controversial questions - presenting in Part I the chief views on debat able points and in the chapters of Part II reﬂecting the Opinions of the several investigators on the subject of their research. Nowhere in the developmental history of the arthropods has the debate been more lively and at times more acrimonious than that relating to the origin of the mid-gut. The student is therefore warned after reading an account of the development of some species in the second part to turn to the first part for a discussion of points of questionable interpretation.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Embryology of Insects and Myriapods (Classic Reprint). To get started finding Embryology of Insects and Myriapods (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Embryology of Insects and Myriapods (Classic Reprint)

Embryology of Insects and Myriapods (Classic Reprint)

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