47 



are partially organized, the more important antagonistic 



muscles function, and the excitable state, to a great ex- 

 tent, disappears. This is represented "by the rapid drop 

 in the curve. With the more excitable rats, there is an 

 absence of the reflex convulsions of the body musculture. 

 There is a little more ease and comfort and no clashing 

 between opposing activities of different parts of the 

 body. From this stage learning or the progress of the 

 organization of movements will take place more smoothly 

 and the curves become more regular. The stimulus hun- 

 ger now dominates over the action of the body as a whole. 

 n this has taken place, learning is said to be complete. 

 There are some differences in the course of events 

 outlined above. Occasionally organisation of movements 

 was scarcely prolonged beyond the point graphically rep- 

 resented by the rapid descent in the curves. Especially 

 was this the case at points of the curve showing when the 

 first rat left off learning. Again when a problem is 



