INVITED PAPER OF WORKING GROUP 1 
FOR COMMISSION VII - PHOTO-INTERPRETATION - 
OF THE INTERNATIONAL SOCIETY OF PHOTOGRAMMETRY 
15g "p 
s 
PHYSIOLOGICAL AND PSYCHOLOGICAL 
  
  
ASPECTS 
OF 
   
   
   
PHOTO-INTERPRETATION 
SIKKE A.HEMPENIUS 
DELFT I- T. C NETHERLANDS 
  
  
AT THE LAUSANNE CONFERENCE JULY 1968