vlli CONTENTS 



CHAPTER PAGE 



VII. The Logic of Evolution 71 



CELLS, TISSUES, AND ORGANS. ERA OF DIGESTION 

 AND REPRODUCTION. RISE OF THE MUSCULAR 

 SYSTEM. THE LOCOMOTIVE SKELETON. LOCO- 

 MOTION, SENSE-ORGANS AND BRAIN. CARE OF 

 YOUNG. EDUCABILHY. V7EAKNESS AND V^ITS. 

 MAN, MORALS AND RELIGION. SUCCESSIVE DYNAS- 

 TIES IN EVOLUTION. REVOLUTIONS AND OUT- 

 BREAKS. REVERSAL OF LOGICAL SEQUENCE AND 

 DEGENERATION. A LIBERAL HUMAN EDUCATION. 



VIII. Nature and man 83 



SEAT OF control IN THE BODY. DIRECTIVITY. 



neo-darwinians and neo-lamarckians. na- 

 ture AS FINAL ARBITER. OUR ABUSE AND EX- 

 PLOITATIONS OF NATURE. IS NATURE MORAL, 

 IMMORAL OR UNMORAL.? DANGERS OF COMPLEXITY. 

 ASYMMETRY. CRIPPLES AND ^REVERSED CRIPPLES." 



IX. Man and Environment 97 



ADAPTATION. SURROUNDINGS. ENVIRONMENT. IM- 

 PORTANCE OF RELATIONS. EVOLUTION OF DIS- 

 COVERY. NEEDS. ARTIFICIAL ENVIRONMENT. 



X. The Survival of the Fittest 106 



CRITERIA OF FITNESS. VERTEBRATES VS. MOL- 

 LUSKS. AMPHIBIA VS. SHARKS. MAMMALS VS. 

 REPTILES. PRIMATES AND APE-MAN VS. CARNIVORA. 

 DOMINANCE AND FITNESS. SOCRATES AND CALLI- 

 CLES. LIFE AND DISTANT ENDS. NATURE VS. 

 DOMINANCE. ADVENTURE. 



XI. Perfect Health 119 



the tyranny of the weakest part, — and of 

 the strongest part. symmetry and health, 

 a healthy nervous system. healthy-minded- 

 ness. interests. values. natural devel- 

 opment of the child. value of play instincts, 

 adolescence. nature and development of 

 youth. the adult. danger of specializa- 

 tion and over-adaptation. young old men. 

 contagion of health. 



Bibliography 136 



Index 145 



