  We compare the spatial distributions of galaxy clusters in the northern and
southern galactic hemispheres, and the Abell and ACO clusters distributions. We
perform a statistical (correlation and cluster) analysis of a sample of Abell
and ACO galaxy clusters in the southern galactic hemisphere. We compare these
results with a symmetric sample at northern galactic latitude taken from
Postman et al. (1992). For the northern sample, we substantially confirm the
results of Postman et al. We find that the two-point spatial correlation
function of northern and southern clusters is comparable, with mean correlation
length 19.6 Mpc and slope -1.8 positive up to about 45 Mpc. Percolation
properties are remarkably similar in the northern and southern cluster samples.
We give also a catalog of superclusters. In the south galactic hemisphere the
main feature is a very rich, extended supercluster in the Horologium region at
a redshift 0.06, near to a large void.
