  We consider the proximity effects in hybrid superconductor (S) - ferromagnet
(F) structures drawing attention to the induced ferromagnetism of the S metal.
The analysis is based on a quasiclassical theory of proximity effect for metals
in the dirty limit conditions. It is shown that, below the superconducting
critical temperature, ferromagnetic correlations extend a distance of order of
the superconducting coherence length \xi_{S} into the superconductor, being
dependent on the S/F interface parameters. We argue that the properties of
mesoscopic SF hybrids may drastically depend upon the magnetic proximity
effect, and recent experiments lend support to the model of SF structures where
the superconducting and magnetic parameters are tightly coupled.
