  The existence of a large number of asymmetric, rotating neutron stars, each
individually emitting periodic or quasi-periodic gravitational waves in the
frequency band around 100 Hz, raises the possibility of detecting their
combined signals, by exploiting the amplitude modulation of the received waves
as the antenna changes its orientation with respect to fixed stars. This
modulation is directly related to the amount of anisotropy present in the
source distribution, and, if detected, could give valuable information about
the spatial distribution of neutron stars in our Galaxy.
