Dynamics of a magnetic monopole in matter, Maxwell equations in dyonic   matter and detection of electric dipole moments
  For a monopole, the analogue of the Lorentz equation in matter is shown to be f = g (H - v cross D). Dual-symmetric Maxwell equations, for matter containing hidden magnetic charges in addition to electric ones, are given. They apply as well to ordinary matter if the particles possess T-violating electric dipole moments. Two schemes of experiments for the detection of such moments in macroscopic pieces of matter are proposed. 
Xavier Artru, David Fayolle