We have investigated the dielectric and magnetic properties of Eu_(0.595)Y_(0.405)MnO_3 without the presence of the 4f magnetic moments of the rare-earth ions and have found two ferroelectric phases with polarization along the a and c axes in a zero magnetic field. A magnetic-field-induced switching from one to the other ferroelectric phase took place in which the direction of ferroelectric polarization changed from the a axis to the c axis by the application of magnetic fields parallel to the a axis. In contrast to the case of TbMnO_3, in which the 4f moments of Tb~(3+) ions play an important role in such a ferroelectric phase switching, the magnetic-field-induced switching between ferroelectric phases in Eu_(0.595)Y_(0.405)MnO_3 does not originate from the magnetic transition of the rare-earth 4f moments but from that of the Mn 3d spins.
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