What does "taking evident private delight" mean? Does it mean "To have a feeling of delight"?
Does "treasure" refer to precious pieces displayed in science museums?
Context:
Viewers are free to make their own associations, just as they unwittingly do when they contemplate ‘genuine’ science collections, their eyes moving arbitrarily from one piece to the next involuntarily investing their own layers of meaning onto the official version and taking evident private delight from doing so, as they rediscover for themselves a childlike pleasure in finding, sorting and rearranging ‘treasure’.