Last Words on Evolution: A Popular Retrospect and Summary by Ernst Haeckel Joseph McCabe

Author:Ernst Haeckel, Joseph McCabe [Ernst Haeckel, Joseph McCabe]
Language: eng
Format: epub
Tags: Science, Life Sciences, Evolution
ISBN: 9781502828927
Google: cYvXoQEACAAJ
Publisher: Createspace Independent Pub
Published: 2014-10-13T00:32:58+00:00

CHAPTER III

Table of Contents

THE CONTROVERSY OVER THE SOUL

THE IDEAS OF IMMORTALITY AND GOD

* * *

EXPLANATION OF PLATE III

EMBRYOS OF THREE MAMMALS AT THREE CORRESPONDING STAGES OF DEVELOPMENT

The embryos of man (M), the anthropoid ape (gibbon, G), and the bat (rhinolophus, B) can hardly be distinguished in the earlier stage (the upper row), although the five cerebral vesicles, the gill-clefts, and the three higher sense-organs are already visible. On the curved dorsal surface we see the sections of the primitive vertebræ. Even later, when the two pairs of limbs have appeared in the form of roundish fins (the middle row), the differences are not great. It is not until a further development of the limbs and head has taken place (lowest row) that the characteristic forms are clearly seen. It is particularly notable that the primitive brain, the organ of the mind, with its five cerebral vesicles, is the same in all.

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