{\bf Consitutent Quarks, Chiral Symmetry and the Nucleon Spin$^{1, 2}$}
  It is argued that the constituent quarks are expected to show a non-- trivial spin and flavor structure, due to the anomalous breaking of the chiral symmetry in the U(1) sector. CERN--TH.7079/93\\ 
H. Fritzsch