primeval art than the glare of electric light in this realm of 
     eternal night. Flares or small stone lamps burning animal 
     fat, of which examples have been found, permit one to 
     obtain only fragmentary glimpses of the colors and lines 
     of the objects depicted. In such a soft, flickering light 
     these take on an almost magical movement. The 
     engraved lines, and even the colored surfaces, lose their 
     intensity under a strong light and sometimes disappear 
     altogether. Only in this way can the fine veining of the 
     drawings be seen unsmothered by their rough 
     background.

          Maybe enough has now been said to show that 
     prehistoric man did not associate the caverns with 
     architecture. In his view the caverns simply provided him 
     with places that he could use for his magic arts. He