NATURE'S INSURGENT SON 25 



animal world, but has ever since been developing the 

 powers and qualities of this organ without increasing 

 its size, or materially altering in other bodily features. 1 



10. THE PROGRESS OF MAN. 



The origin of Man by the process of Natural Selection 

 is one chapter in man's history ; another one begins 

 with the consideration of his further development and 

 his diffusion over the surface of the globe. 



The mental qualities which have developed in Man, 

 though traceable in a vague and rudimentary condition 

 in some of his animal associates, are of such an unpre- 

 cedented power and so far dominate everything else in his 

 activities as a living organism, that they have to a very 

 large extent, if not entirely, cut him off from the general 

 operation of that process of Natural Selection and sur- 

 vival of the fittest which up to their appearance had been 

 the law of the living world. They justify the view that 

 Man forms a new departure in the gradual unfolding 

 of Nature's predestined scheme. Knowledge, reason, 

 self-consciousness, will, are the attributes of Man. It is 

 not my purpose to attempt to trace their development 

 from lower phases of mental activity in man's animal 

 ancestors, nor even to suggest the steps by which that 



1 A short discussion of this subject and the introduction of the term 

 ' educability ' was published in a paper by me entitled ' The Significance 

 of the Increased Size of the Cerebrum in recent as compared with 

 extinct Mammalia,' Cinquantenaire de la Societe de Biologic, Paris, 

 1899, pp. 48-51. 



It has been pointed out to me by my friend Dr. Andrews, of the 

 Geological Department of the British Museum, that the brain cavity of 

 the elephants was already of relatively large size in the Eocene members 

 of that group, which may be connected with the persistence of these 

 animals through subsequent geological periods. 



