  Extending to continuous potentials a cleaving wall molecular-dynamics
simulation method recently developed for the hard-sphere system [Phys.Rev.Lett
85, 4751 (2000)], we calculate the crystal-melt interfacial free energies,
$\gamma$, for a Lennard-Jones system as functions of both crystal orientation
and temperature. At the triple point, T* = 0.617, the results are consistent
with an earlier cleaving potential calculation by Broughton and Gilmer [J.
Chem. Phys. {\bf 84}, 5759 (1986)], however, the greater precision of the
current calculation allows us to accurately determine the anisotropy of
$\gamma$. From our data we find that, at all temperatures studied,
$\gamma_{111} < \gamma_{110} < \gamma_{100}$. Comparison is made to the results
from our previous hard-sphere calculation and to recent results for Ni by Asta,
Hoyt and Karma [Phys. Rev. B, 66 100101(R) (2002)].
