Globular Cluster Subsystems in the Galaxy. ... Data from the literature are used to construct a homogeneous catalog of fundamental astrophysical parameters for 145 globular clusters of the Milky Way Galaxy. ... The overall globular-cluster population is divided by a gap in the metallicity function at [Fe/H]=?1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 and ?0.60?0.04. ... GLOBULAR CLUSTERS OF THE DISK AND HALO . ... GLOBULAR-CLUSTER POPULATIONS IN THE HALO . ...