Experimental Embryology (Classic Reprint) - Couverture souple

John W. Jenkinson

Couverture souple

ISBN 10 : 1331896452 ISBN 13 : 9781331896456

Editeur : Forgotten Books, 2019

Synopsis

The digital edition of all books may be viewed on our website before purchase. Excerpt from Experimental Embryology (Classic Reprint)



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A propos du livre

Présentation de l'éditeur

For the biologist there are, I conceive, in the main two problems. One is to give an account of those activities or functions by means of which an organism maintains its specific form in an environment. The other is to find the causes which determine the production of that form, whether in the race or in the individual. The solution of the first of these problems is the business of physiology, in the usual sense of the term. The second falls to morphology. It is with the origin of form that we are here concerned, and in particular with its origin in the individual. The endeavour to discover by experiment the causes of this process as distinct from the mere description of the process itself is a comparatively new branch of biological science, for Experimental Embryology, or, as some prefer to call it, the Mechanics of Development E ntivlcklungsmechanik), or the Physiology of Development, really dates from Roux sproduction of a half-embryo from a half-blastomere, and the consequent formulation of the Mosaik-T heorie of selfdifferentiation. That hypothesis has been the focus of much fruitful criticism and controversy, the experiment has been followed by many others of the same kind, and the present volume is an attempt to sketch the progress of these researches and speculations on the nature and essence of differentiation, as well as of those which deal with growth, cell-division, and the external conditions of development. In writing this review I have had the very great advantage of an excellent model in the textbook of Korschelt and Heider (L ehrhuch der vergleichenden Entiuicldungsgeschichte der ivirbelloten Thieve, A llgemeiner Theil, Jena,
(Typographical errors above are due to OCR software and don't occur in the book.)

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2019
• Langue: anglais
• ISBN 10: 1331896452
• ISBN 13: 9781331896456
• Reliure: Broché
• Nombre de pages: 354
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