******************************************************                         
    PR # 31228                                                                   
     Distant cluster are impotarnt cosmological probes.  Due to rapid evol       
     ution of clusters of galaxies, the distant clusters allow us to under       
     stand the nature of evolution more clearly than previously possible.        
      In particular, the iron abundance is a very sensitive tool to study        
     the history of evolution. We propose to observe two distant clusters        
     which were found to be bright in the ROSAT survey,therefore the feasi       
     bility is cleare. RXJ0232.3-4420 is a gravitational lense cluster.A85       
     1 is the most distant cluster in Abell catalog.                             
                                                                                 
                                                                                 
                                                                                 
                                                                                 
  ******************************************************