  In an unitary effective Lagrangian model we develop a unified description of
both meson scattering and photon-induced reactions on the nucleon. Adding the
photon to an already existing model for meson-nucleon scattering yields both
Compton and meson photoproduction amplitudes. In a simultaneous fit to all
available data involving the final states $\gamma N$, $\pi N$, $\pi\pi N$,
$\eta N$ and $K \Lambda$ the parameters of the nucleon resonances are
extracted.
