22 THE METHOD OF DARWIN; 



undergone so great a revival, the science of 

 reasoning should still be lying in the valley of 

 dry bones. Fate may have decreed that its 

 revival should be the crowning phase of modern 

 progress in educational methods. Slowly but 

 very surely these methods are drifting in the di- 

 rection of a more extended and a more profound 

 recognition of the importance of reasoning. 



When educational practice shall have demon- 

 strated the importance of the art of reasoning, 

 scientific models of the art, for purposes of logi- 

 cal study, will be found to be rare, especially 

 those that reveal the order of discovery. The 

 scientist, after establishing a conclusion to his 

 own satisfaction, is not concerned with telling 

 other people how he reached it, but with con- 

 vincing them of its truth. For this purpose 

 he throws his conclusions and facts into the. 

 order best suited to form a compact argument. 

 In the vast majority of cases it is impossible to 

 follow out the original course of thought by a 

 study of the results as they are embodied in a 

 book. It would probably be difficult for an 

 author himself to trace again the windings of 

 his thought. Therefore, while there is a fair 

 number of models for the study of argument, 

 the writers who habitually take their readers 

 so far into their confidence as to tell them by 



