  The prints of the Palomar Sky Survey, luminosity classificaiton and radial
velocities were used to assign all northern Shapley-Ames galaxies to either (1)
field, (2) group, or (3) cluster environments. This information for 930
galaxies shows no evidence for a dependence of bar frequency on galaxy
environment. This suggests that the formation of a bar in a dish galaxy is
mainly determined by the properties of the parent galaxy, rather than by the
characteristics of its environment.
