*************************************************************************
   72181
   There are 23 Einstein Medium Sensitivity Survey clusters with z > 0.3.
   All but 4 have ROSAT HRI images and all but 6 have ASCA spectra. Of
   these 6, 1 is near NGC4151 whose scattered light precludes observations
   with ASCA. We propose to obtain the spectra of the last 5 feasible
   clusters. Our particular interest is to determine cluster temperature
   evolution in order to constrain cosmological parameters. However, there
   are many other uses for a complete sample of clusters with temperatures
   all measured with the same instrument.
 *************************************************************************