CONTENTS. xi 



ARTICLE XII. 



DURATION AND ORIGINATION OF RACE AND SPECIES. 



PAGE 



Part I. — Do Varieties in Plants wear out, or tend to wear out ? — 

 The Question considered in the Light of Facts, and in that of 

 the Darwinian Theory. — Conclusion that Races sexually propa- 

 gated need not die of Old Age. — This Conclusion inferred 

 from the Provisions and Arrangements in Nature to secure 

 Cross-Fertilization of Individuals. — Reference to Mr. Darwin's 

 Development of this View . . . . . .388 



Part II. — Do Species wear out, and, if not, why not ? — Implication 

 of the Darwinian Theory that Species are unlimited in Exist- 

 ence. — Examination of an Opposite Doctrine maintained by 

 Naudin. — Evidence that Species may die out from Inherent 

 Causes only indirect and inferential from Arrangements to 

 secure Wide Breeding. — Physiological Import of Sexes. — 

 Doubtful whether Sexual Reproduction with Wide Breeding 

 is a Preventive or only a Palliative of Decrepitude in Species. 

 — Darwinian Hypothesis must suppose the Former . . 347 



ARTICLE XIIL 



evolutionary teleology. 



The Opposition between lijorphology and Teleology reconciled by 

 Darwinism, and the Latter reinstated. — Character of the New 

 Teleology. — Purpose and Design distinguished. — Man has no 

 Monopoly of the Latter. — Inference of Design from Adap- 

 tation and Utility legitimate ; also in Hume's Opinion irresisti- 

 ble. — The Principle of Design, taken with Specific Creation, 

 totally insufficient and largely inapplicable ; but, taken with 

 the Doctrine of the Evolution of Species in Nature, applicable, 

 pertinent, and, moreover, necessary. — ^Illustrations from Abor- 

 tive Organs, supposed Waste of Being, etc. — All Nature being 

 of a piece. Design must either pervade or be absent from the 

 Whole. — Its Absence not to be inferred because the Events 

 take place in Nature. — Illustration of the Nature and Prov- 

 ince of Natural Selection.— It picks out. but does not origi- 



