  The spin structure functions g1 and g2 have been calculated in the resonance
region and for small and intermediate momentum transfer. The calculation is
based on a gauge-invariant and unitary model for one-pion photo- and
electroproduction. The predictions of the model agree with the asymmetries and
the spin sturcture functions recently measured at SLAC, and the first moments
of the calculated spin structure functions fullfil the Gerasimov-Drell-Hearn
and Burkhardt-Cottingham sum rules within an error of typically 5-10 %.
