CONTENTS. 



PAGE 



I. The Principium Principiorum : that every 

 Principle must have POWER to do what 



it is required to explain . . 5 



II. The Principle of Continuous Increment . 7 



III. Lyell . . 10 



IV. Darwin ..... 15 

 V. Some cases of organisation . . 23 



VI. Causes of Darwin's success . . 32 



VII. Our debt to Darwin or others . . 43 



VIII. Natura Saltatrix . . , 52 



IX. Geology and the Vis Creatrix Natura . 61 



X. The origin of man and the ' Missing 



Link' ..... 85 



XL The Apotheosis of Impotence . . 89 



APPENDIX. On Darwin's theory of Coral Is- 

 lands ... .95 



EPILOGUS . 99 



