CONTENTS. 



CHAPTER PAGE 



I. EDUCATION AND THE ART OF REASONING . . 15 



II. DARWIN'S VIEW'S OF METHOD 25 



III. STARTING POINTS. METHOD OF STARTING 



INVESTIGATIONS. ISOLATED PHENOMENA . 47 



IV. EXHAUSTIVENESS. TlME GIVEN TO INVESTI- 



GATIONS. TREATMENT OF OBJECTIONS . . 60 



V. NEGATIVE EVIDENCE 82 



VI. CLASSIFICATION 88 



VII. ANALOGY 95 



VIII. INDUCTION 107 



IX. DEDUCTION. EXPLANATION OF KNOWN FACTS. 

 IMPORTANCE OF- THEORY TO GOOD OB- 

 SERVATION 121 



X. DEDUCTION. ANTICIPATION 133 



XI. DEDUCTION. GENERAL INSTANCES . . . . 160 



XII. UNVERIFIED DEDUCTIONS 178 



XIII. ERRONEOUS DEDUCTION 192 



XIV. GENERAL DISCUSSIONS . . 207 



XV. LOGICAL HISTORY OF THE PRINCIPLE OF NAT- 

 URAL SELECTION 212 



XVI. CONCLUSION 229 



