CONTENTS 



CHAPTER PAGE 



I. ANIMAL PSYCHOLOGY, THE OLD AND THE 



NEW 9 



II. THE EVOLUTION OF PARENTAL CARE . . 35 



III. THE TROPISMS AND THEIR RELATION TO 



MORE COMPLEX MODES OF BEHAVIOR . 50 



IV. THE PROBLEM OF ORIENTATION ... 69 

 V. THE REVERSAL OF TROPISMS 93 



VI. THE BEGINNINGS OF INTELLIGENCE . .120 



VII. SOME CONSIDERATIONS ON THE PROBLEM OF 



LEARNING 139 



VIII. THE IMPLICATIONS OF TRIAL AND ERROR . 155 



IX. BEHAVIOR AND FORM 166 



X. THE BEHAVIOR OF CELLS . . . . 177 



XI. THE INSTINCT OF FEIGNING DEATH . . 197 



XII. THE RECOGNITION OF SEX .... 219 



XIII. THE ROLE OF SEX IN THE EVOLUTION OF 



MIND 239 



XIV. THE MIND OF A MONKEY .... 245 

 INDEX , 263 



39677 



