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CHAPTER XIII, 



EXPRESSION OF GENERAL CONDITIONS OF THE 

 BRAIN AND OF THE EMOTIONS. 



Expression of consciousness Sleep Fatigue Exhaustion Irri- 

 tability Nutrition Rest Activity Impressionability Ex- 

 pression of instinct and mentation Expression of pain The 

 emotion of the beautiful. 



VARIOUS modes of expression, or physical signs, 

 the outcome of brain action, have been considered ; 

 we shall now discuss some of the brain conditions 

 causing or accompanying the emotions, and certain 

 general conditions of the man, noting how they 

 are directly expressed. 



It is proposed to speak of the following general 

 conditions: Consciousness; sleep; fatigue; exhaus- 

 tion; irritability; nutrition; rest; activity; im- 

 pressionability ; expression of instinct and menta- 

 tion ; expression of pain, and of the emotion of the 

 beautiful. 



As to the direct expression of consciousness : 

 consciousness itself in the, abstract is beyond our 

 sphere o observation, but the expression of con- 

 sciousness is most important to our subject, and 



Q 



