  The data recorded by the ALEPH experiment at LEP at centre-of-mass energies
of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric
partners of leptons. No evidence for the production of these particles was
found. The number of candidates observed is consistent with the background
expected from four-fermion processes and gammagamma-interactions. Improved mass
limits at 95% C.L. are reported.
