CONTENTS OF THE FIRST VOLUME. ix 



ADAPTIVENESS. 



CHAPTER PAGE 



XX. General Adaptiveness 357 



XXT. Organisations 377 



XXII. Law and Punishment 397 



XXIII. Use of Natural Instruments 409 



XXIV. Use of Man's Instruments 429 



XXV. Use of Clothing and Shelt 440 



XXVI. Preparation of Foo 446 



XXVTL Faculty of Numeration 451 



XXVIII. Power of Calculation . . . . . .454 



XXIX. Courtship and Marriage 468 



XXX. Foster Parentage 482 



FALLIBILITY. 



XXXI. Liability to Error 488 



XXXLT. Commission of Error 498 



XXXIII. Commission of Error continued . .... 512 



XXXIV. Deception 523 



XXXV. Practical Jokes 537 



