110 



THE EYE IN EVOLUTION 



recording objective appearances in the outside world and emerged as 

 an imaginative and creative sense. This aesthetic quahty was certainly 

 a late acquisition acquiring maturity only in man.^ 



The extent to which in the animal scale an appreciation of these 

 three progressive stages became a factor in the customary activities 

 of the life of living organisms is a question which must await the 

 acquisition of a much more profound knowledge of their natural 

 history than we at present possess. And — whatever the future may 

 bring forth — the manner of its becoming so is inexj^licable by any 

 physico-mathematical techniques we have at our disposal today or will 

 have tomorrow. 



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p. 753. 



