  Using the Submillimeter Common-User Bolometer Array (SCUBA) at the James
Clerk Maxwell Telescope (JCMT), we obtained submillimeter polarization maps of
the Bok globules B335, CB230, and CB244 at 850micron.
  We find strongly aligned polarization vectors in the case of B335 and CB230,
indicating a strong coupling of the magnetic field to the dust grains. Based on
the distribution of the orientation and strength of the linear polarization we
derive the magnetic field strengths in the envelopes of the globules. In
agreement with previous submillimeter polarization measurements of Bok globules
we find polarization degrees of several percent decreasing towards the centers
of the cores.
  Furthermore, we compare the magnetic field topology with the spatial
structure of the globules, in particular with the orientation of the outflows
and the orientation of the nonspherical globule cores. In case of the globules
B335 and CB230, the outflows are oriented almost perpendicular to the symmetry
axis of the globule cores. The magnetic field, however, is aligned with the
symmetry axis of the prolate cores in the case of the Bok globules B335 and
CB230, while it is slightly aligned with the outflow axis in the case of the
Bok globules CB26 and CB54. We discuss the possibility that the different
orientations of the magnetic field relative to the outflow directions reflect
different evolutionary stages of the single globules.
  The complete version of this article (containing all figures) can be
downloaded from
http://spider.ipac.caltech.edu/staff/swolf/homepage/public/preprints/mfe.ps.gz
