OOISTTENTS. 



CUAPTER I. 



INTBODUOTOBT. 



The Problem of the Genesis of Species stated. — Nature of Ita Probable Solution. — Im- 

 portance of the Question. — Position here defended. — Statement of the Darwikian 

 Thkort. — Its Applicability to Details of Geographical Distribution ; to Rudimentary 

 Structures ; to Homology ; to Mimicry, etc. — Consequent Utility of the Theory. — 

 Its Wide Acceptance. — Reasons for this, other than, and in Addition to, Its Scientific 

 Value. — Its Simplicity. — Its Bearing on Religious Questions. — Oduim Theologicum 

 and Odium Antitheologicum. — The Antagonism supposed by many to exist be- 

 tween It and Theology neither necessary nor tmlvcrsal. — Christian Authorities in 

 favor of Evolution. — Mr. Darwin's "Animals and Plants under Domestication." — 

 Difficulties of the Darwinian Theory enumerated . . . . p. 18 



CHAPTER II. 



THB INOOMPETENOT OF " NATUBAL SELECTION" TO AOOOUNT FOB THE IN- 

 CIPIENT STAGES OF USEFUL 8TBU0TUBE8. 



Mr. Darwin supposes that Natural Selection acta by Slight Variations.— These must b« 

 useful at once. — Difficulties as to the Giraffe ; as to Mimicry ; as to the Heads of 

 Flat-fishes ; as to the Origin and Constancy of the Vertebrate Limbs ; as to Whalo- 

 bone ; as to the Young Kangaroo ; as to Sea-urchins ; as to Certain Processes of 

 Metamorphosis ; as to the Mammary -gland ; aa to Certain Ape Charactara ; aa to 



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