CONTENTS 



CHAP. PAGE 



INTRODUCTION vii 



I EVIDENCES OF EVOLUTION FROM EXPLORER AND 



PALAEONTOLOGIST 15 



II EVIDENCES OF EVOLUTION FROM ANATOMIST, 



EMBRYOLOGIST AND PHYSIOLOGIST .... 40 



III GREAT STEPS IN EVOLUTION 67 



IV VARIATION AND HEREDITY 112 



V SELECTION 143 



VI ORGANISM, FUNCTION AND ENVIRONMENT. - . 183 



VII EVOLUTION THEORIES IN THEIR SOCIAL ORIGINS 



AND INTER-ACTIONS 212 



VIII THE EVOLUTION PROCESS ONCE MORE REINTER- 

 PRETED 233 



BIBLIOGRAPHY . . . 249 



