At a symposium in Wuppertal held on 26 September 1995, Dr. Karl-Georg Metzger was honored, on the occasion of his retirement, for his scientific contributions and involvement in antibacterial drug research and develop ment within Bayer AG. In 1963 Dr. Metzger was the first "molecular micro biologist" to join Bayer in the field of antibacterial research. Karl-Georg Metzger studied physics and biology at the University of Mainz from 1950 to 1953 and continued his scientific education, with a grant from the Deutsche Forschungsgemeinschaft, in Frankfurt on Main (1953-1956). From 1956 to 1958,...