Updated limits on the matter density in a flat Universe with Cosmological constant.

Figure Captions
   (a) is from globular cluster limits on age of the Universe
   (b) is from constraints on the baryon density from BBN combined with X-Ray measurements of galaxy clusters,
   (c) is from shape of galaxy power spectrum,
   (d) is virial lower limit on mass in galaxy clusters,
   (e) abundance of galaxy clusters extrapolating from COBE normalization, assuming dark matter is cold.

The vertical shaded curves are constraints from evolution of number of rich clusters with redshift (lighter shaded curve), and SN 1a measurements of the deceleration parameter q. The changes since the Ap. J. constraint curves are due to
   (1) new data on primordial deuterium and from X-Ray cluster measures to constrain the baryon fraction of the Universe, and
   (2) the new work on cluster number densities, and the SN 1a observations.


LMK