24 WARFARE IN THE HUMAN BODY 



properly understood or explained, he replied, possibly not 

 without humour, that he had no time for the course of study 

 I was so good as to map out for him. I accepted the rebuke 

 in good part, but could not help thinking what a lamentable 

 thing it was for scientific discovery that each worker in 

 any particular branch of research apparently hastened to 

 forget the very nature of explanation, which is the intro- 

 duction of order in all forms of knowledge, and the arrange- 

 ment of every fact under the headings of more inclusive 

 sciences, so that each phenomenon can be seen from all 

 possible points of view. 



It was before remarked that there is much well-founded 

 complaint of the neglect of science in England ; but the truth 

 is that none neglect it like many scientific men who might 

 be supposed to know better. It is not only so in the 

 sciences directly connected with medicine, but in all others. 

 In no psychology whatsoever can any recognition of the 

 valuable work done by Robertson Smith, Tylor, and Fraser 

 be observed. While the introspective philosopher digs in 

 the morasses of his own mind, and with each shovelful 

 proclaims some individual accident or hasty explanation as 

 a universal truth, the more advanced experimentalist in 

 mentation relies mainly upon the compilation of statistics. 

 But both alike ignore the light thrown upon the workings of 

 the brains of our far-off ancestors, as seen in thought crystal- 

 lizing into custom, myth, and ritual. The very logicians, 

 who ex hypothesi are exponents of reason, prefer, so it seems, 

 to dally in the ruined schools of mediaeval philosophy, 

 rather than study the natural logic of the mind of man as 

 shown in every branch of folk-lore. There has been little 

 endeavour, or none that has met with favour, to analyse the 

 natural hostility of group to group, such as is seen exempli- 

 fied in " the tribal spirit," into its constituents, nor has it 



