FORCING INTELLIGENCE 77 



various ways by this influx. Correlated, concerted, 

 compound motions are produced by these contrac- 

 tions, which motions, under the direction of judgment 

 and will, become conduct. The progress of this series 

 of physical and mental activities just outlined con- 

 sumes time and effort. More particularly are these 

 consumed in effecting the transition from each step 

 to the next. 



When similar kinds of external conditions there- 

 after react on the nervous system, then the passage 

 from one step to another consumes less time and less 

 effort. From this fact it is an inevitable inference 

 that the changes occasioned in the nervous system by 

 the first occurrence of these external conditions, and 

 of the currents they generated, facilitate the passage 

 of subsequent currents. Many repetitions reduce 

 time and effort to such an extent that before long 

 judgment and will, and at last even consciousness, 

 are eliminated from the series. Thereafter the mere 

 incidence on the organism of a single term or item in 

 the complex external conditions, which produced the 

 original changes in the nervous system, is competent 

 to reinaugurate the correlated, concerted compound 

 motions, the conduct, which were produced, when 

 the whole series of external conditions reacted for 

 the first time on the nervous system of the individual, 

 but they now occur without the intervention of judg- 

 ment, will, and frequently without consciousness. 

 From the above, the inevitable inference seems to be 

 that the various nerve currents, motions, and modes 



