xiv ANALYTICAL TABLE OF CONTENTS. 



CHAPTEE X. 



SEXUAL SELECTION. 



&quot; Sexual selection is an hypothesis which neither has been nor can be proved 

 true, but the falsehood of which is demonstrated by a mass of zoological data.&quot; 



Sexual selection, an accessory hypothesis Has been made to include two 

 distinct things Marked characters certainly arise independently of it 

 Insects Fishes and reptiles Beasts Birds Voice Mr. Wallace 

 opposes Mr. Darwin His hypothesis as to colour Mr. Darwin opposes 

 Mr. Wallace s hypothesis Need of an internal force Its sufficiency 

 Mr. Darwin influenced by a priori views An illustration Uncertain 

 ties of the hypothesis Sexual selection and man Mr. Darwin s style 

 Ancillary hypotheses needed Conclusion as to sexual selection. 



pp. 3023,31 



CHAPTER XI. 



AN KP1SODK. 



&quot; Mr. Chauncey Wright s criticism of the author s views having been repub- 

 lished and widely circulated by Mr. Darwin, the reply to that criticism is here 

 reproduced.&quot; 



A digression induced by special circumstances May be passed over without 

 detriment to the general argument Mr. Chauncey Wright s criticism 

 Mainly addressed to two points The first of these Sudden adaptive 

 modifications Improper interpretations Mr. Wright s second point 

 Design and accident Innate force The inductive philosophy Mr. 

 Wright on intellectual genius The giraffe s neck An advantage pos 

 sessed by Mr. Darwin s theory which does not properly belong to it 

 Critical details An objection singular in a mathematician An illustra 

 tion in the growth of a tree Vital forces Verbal criticisms Conclusion. 



pp. 332355 



CHAPTER XII. 



CAUSES. 



&quot;Truths vouched for by the intellect as positively necessary truths, compel our 

 acceptance of a First Cause with power, knowledge, wisdom and goodness, and 

 therefore prove the existence of final causes also the existence of a personal 

 God being the ultimate lesson taught by Nature, that as to its own cause.&quot; 



The axiom of causation Science points to no beginning But either to a 

 Pantheistic first cause Or one distinct from the universe Together with 

 final causation Thus supplying a key to evolution Mr! Spencer s 

 evolutionary formula&quot; Purpose &quot; as shown in Nature Formal law of 



