The aim of this paper is to study the space distribution of galaxies w
ith a view to determining whether the known morphology-density and lum
inosity-density relationships are unrelated or are a consequence of di
fferent luminosity functions for different morphological types. It is
found that morphology and luminosity are two independent parameters th
at affect both the clustering properties of galaxies and their distrib
ution as a function of the local density. morphology playing the predo
minant