Fig. 1.—Tree illustrating the probable course of animal evolution.

EVOLUTION

BY J. A. S. WATSON, B.Sc.

THROUGH THE · EYE

Published by T. C. & E. C. JACK, Ltd.
35 & 36 PATERNOSTER ROW, LONDON, E.C.
AND AT EDINBURGH

Printed in Great Britain

CONTENTS

PAGE
CHAPTER IThe Evidence for Evolution[1]
CHAPTER IIUnicellular and Multicellular Animals[23]
CHAPTER IIIThe Worms and some of their Posterity[58]
CHAPTER IVThe Early Vertebrates and the Fishes[79]
CHAPTER VThe Conquest of the Land[104]
CHAPTER VIThe Mammals and Man[123]

For many of the illustrations the Publishers are indebted to the Deutsche Verlags-Anstalt (from Günther's Vom Urtier zum Menschen) and Herr Wilhelm Engelmann (from Haeckel's Anthropogenie). Acknowledgment is also made to Messrs. Watts & Co., London, the Publishers of the English Edition of Haeckel's Anthropogenie, entitled The Evolution of Man.