Neutrino Properties
  A brief sketch is made of the present observational status of neutrino properties, with emphasis on the hints from solar and atmospheric neutrinos, as well as cosmological data on the amplitude of primordial density fluctuations. Implications of neutrino mass in particle accelerators, astrophysics and cosmology are discussed. 
J. W. F. Valle (IFIC/CSIC, Dept Fisica Teorica, U. de Valencia)