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1. A study was made of the electrophysical properties of a number of aromatic betaines which did not have bonding between charged atoms. 2. The dielectric permeability of the substances studies proved to be somewhat higher in comparison with the majority of organic compounds and lay within the limits 2.9 - 3.9. 3. The temperature dependence of the betaines taken is described by the usual exponential law for organic substances. 4. Internal molecular variations which result in easier excitation of the electron system lead as a rule to a lowering of the 'activation energy' of conductivity. (Author), Unedited rough draft trans. of Akademiya Nauk SSSR. Izvestiya. Seriya Khimicheskaya, 1963, no. 3, p. 446-450.