  We use the supersymmetric formalism to derive an integral formula for the
density of states of the Gaussian Orthogonal Ensemble, and then apply
saddle-point analysis to give a new derivation of the 1/N-correction to
Wigner's law. This extends the work of Disertori on the Gaussian Unitary
Ensemble. We also apply our method to the interpolating ensembles of
Mehta--Pandey.
