************************************************************************* 81601 Nearby galaxy M33 contains 7 bright X-ray sources that can be resolved with ASCA. To classify these X-ray sources, we propose to investigate time variability including pulsation and trasient brightening. Espacially, X8 is a candidate of the black hole binary, and X7 is X-ray binary pulsar. Search of pulsars and transient sources is also the aim of this observation. *************************************************************************