Abstract: A method and apparatus for magnetically treating liquids and biological tissues is disclosed. The method and apparatus include the steps of enclosing a space receiving a liquid or biological tissue to be treated with at least one wall, providing on the wall a secondary coil at least partially surrounding the space, connecting the secondary coil in an oscillating circuit having an adjustable resonance frequency and polarizable resonant signal, juxtaposing the secondary coil with a primary coil insulated from and inductively coupled with the secondary coil, and connecting the primary coil across an electronic generator supplying electrical pulses of selected shape, frequency, and amplitude to the primary coil whereby the pulses induce electrical signals in the secondary coil.