  We present point contact spectroscopy (PCS) data for junctions between a
normal metal and the electron doped cuprate superconductor
Pr$_{2-x}$Ce$_x$CuO$_4$ (PCCO). For the underdoped compositions of this cuprate
($x \sim 0.13$) we observe a peak in the conductance-voltage characteristics of
the point contact junctions. The shape and magnitude of this peak suggests the
presence of Andreev bound states at the surface of underdoped PCCO which is
evidence for a d-wave pairing symmetry. For overdoped PCCO ($x \sim 0.17$) the
PCS data does not show any evidence of Andreev bound states at the surface
suggesting an s-wave pairing symmetry.
