CONTENTS. 



I. 



PAGH 



Introduction— 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 



n. 



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



in. 



The Phenomena of Reproduction in the Animal World. . 39 



IV 

 The Animal World in its Historical and Pal.eontological 

 Development 60 



V. 



The Standpoint of the Miraculous, and the Investigation 

 OF Nature— Creation or Natural Development — Linn^us 

 —Cuvier—Agassiz— Examination of the Idea of Species . 82 



VI. 

 Natural Philosophy— Goethe— Predestined Transformation 

 according to Richard Owen— Lamarck 104 



