CONTENTS. 



-♦♦- 



I. 



l.^TRODUCTION— SUMMARY OF THE RESULTS OF LINGUISTIC INQUIRY 



—Positive Knowledge preliminary to the Doctrine of 

 Descent— Belief in Miracle— The Limits of the Investi- 

 gation OF Nature i 



II. 



The Animal World in its Present State ..... 24 



III. 



The Phenomena of Rfproduction in the Animal World. . 39 



IV 



The Animal World in its Historical and PALi^oNTOLOGicAL 



Development 60 



V. 



The Standpoint of the Miraculous, and the Investigation 

 of Nature— Creation or Natural Development — Linnaeus 

 — CuviER — Agassiz — Examination of the Idea of Species . 8a 



VI. 



Natural Philosophy— Goethe— Predestined Transformation 

 according to Richard Owen — Lamarck 104 



