Narrow-band CCD images of 209 axially symmetrical planetary nebulae (P
Ne) have been examined in order to determine the orientation of their
axes within the disc of the Galaxy. The nebulae have been divided into
the bipolar (B) and elliptical (E) PNe morphological types, according
to the scheme of Corradi & Schwarz. In both classes, contrary to the
results of Melnick & Harwit and Phillips we do not find any strong evi
dence for non-random orientations of the nebulae in the Galaxy. Compar
ed with previous work in this field, the present study takes advantage
of the use of larger and morphologically more homogeneous samples and
offers a more rigorous statistical analysis.