PSYCHIC INCOME 179 
Pure services (subjective) 
3 : ew {labor (cost of production) 
Pure disservices (subjective) | pains and other discomforts 
  
nutrition 
Services between objective wealth dothing 
housing 
and body of owner ta 
(final objective services) anusemen 
instruction 
ete. 
Interactions jcultural 
production agriculs . 
manufacturing 
between transportation 
objective 
articles commerce 
advertising 
organizing 
ete. indemnifying 
ete.