Symposium in Honour of Professor Bernhard Witkop held in Jerusalem on 20 May 1987
Contents: R. Mechoulam, 'Bernhard Witkop: A Tribute'; E. Katchalsky-Katzir, 'The Artificial Gene of Homo Sapiens'; H. Atlan, 'Natural Complexity and Self-Creation of Meaning'; B. Witkop, 'Mind over Matter or Thoughts over Molecules'.