  We determined the electric form factor of the neutron $G_E^n$ via the
reaction ${\vec{d}(\vec{e},e'n)p}$ using a longitudinally polarized electron
beam and a frozen, polarized $^{15}ND_3$ target at Jefferson Lab. The knocked
out neutrons were detected in a segmented plastic scintillator in coincidence
with the quasi-elastically scattered electrons which were tracked in Hall C's
High Momentum Spectrometer. To extract $G_E^n$, we compared the experimental
beam--target asymmetry with theoretical calculations based on different $G_E^n$
models. We report the preliminary results of the fall 2001 run at $Q^{2}=0.5$
and $1.0 (GeV/c)^{2}$.
