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Article Contents

TITLE PAGE

1.INTRODUCTION
1.1.Description of the Einstein Observatory Focal Plane Instruments
1.2.Cluster Dynamical Evolution

2.PROPERTIES AND MODELS OF THE INTRACLUSTER GAS
2.1.X-Ray Properties of Clusters
2.2.A Description of the X-Ray Gas Distribution

3.CLUSTERS WITH LARGE X-RAY CORE RADII - nXD CLUSTERS
3.1.Irregular, Cool X-Ray Clusters
3.2.X-Ray Double Clusters - A Possible Intermediate
3.3.Relaxed nXD Clusters

4.CLUSTERS WITH DOMINANT, CENTRAL GALAXIES - XD CLUSTERS
4.1.Cluster Dynamical Evolution and the Growth of cD Galaxies
4.2.Virgo - An Unevolved Cluster with a Dominant Galaxy
4.3.Spiral-Rich Clusters with cD Galaxies
4.4.Spiral-Poor Clusters with cD Galaxies
4.5.The Perseus Cluster
4.6.Groups of Galaxies

5.CLUSTER CLASSIFICATION
5.1.Correlations of Cluster Properties
5.2.The Dynamical Stages of Clusters

6.THE VIRIAL MASS DISTRIBUTION

7.X-RAY EMISSION FROM DISTANT CLUSTERS

EPILOGUE

REFERENCES