  An experimental search for non-newtonian, gravity-like force in a precision
measurement of the scattering of slow neutrons in Xenon gas is proposed. A
preliminary experiment with small statistics of 25 hours irradiation time was
performed and the observed scattering distribution is consistent with the
expectation with no additional forces. A 95% CL limit on the coupling strength
for a hypothetical force of 1 nm interaction range was evaluated to be
2*10^-15. The expected sensitivity for a planned high statistics runs is
discussed.
