Contents

12 April 2002
Vol 296, Issue 5566

About The Cover

Cover image expansion

COVER Narcissus gazes at his reflection, as depicted by Michelangelo Merisi da Caravaggio (1573-1610). As the story from Greek mythology reminds us, and as discussed in the special section in this issue, effective recognition of self is important to general survival and to successful immune surveillance, reproduction, community structure, and philosophical integration of the individual. 297 [Image: Scala/Art Resource]