80 PHYSICAL EXPRESSION. 



Again, sucking in an infant is not a sign of present 

 intelligence. Some movements are usually accom- 

 panied by non-intelligence. 



4. Movements may be synchronous or asynchro- 

 nous. 



5. Movements may be classified as occurring in 

 a regular series. The regular movements of a 

 particular dance may be expressive. A series of 

 movements is often expressive of certain passions, 

 emotions, or states of feeling. In some kinds of 

 fits a series of movements characterizes the attack. 



6. Movements are often spoken of as caused by 

 feelings. It seems to me that this is a great assump- 

 tion. It may be, on the contrary, that the move- 

 ment and the feeling are alike due to the condition 

 of nerve-centres. 



Sum/ma/ry. For the sake of simplicity movement 

 is here considered apart from the cause of that 

 movement which it directly expresses. Various 

 modes of classification of movements may be used 

 as spontaneous, reflex, voluntary; this classification 

 depends upon our idea of their origin. A classifica- 

 tion may be made according to the attributes of the 

 movement frequency, speed, duration, quantity, 

 etc. The graphic method is most suitable for such 

 a classification. Further, description of the attri- 

 butes of a movement involves consideration of the 

 analysis of tracings of movements; the considera- 

 tion of the attributes of a movement involves 

 the laws of conservation of energy, also ideas 

 of the relation of time, and quantity. When 

 the relations of two or more movements are 



