  NGC 253 is a nearby spiral galaxy that is currently undergoing a nuclear
burst of star formation in a 100 pc diameter region. We present spatially
resolved 8--13 micron low-resolution spectra at four positions along the ridge
of 8--13 micron emission. We find that the relative strengths of the ionic,
dust emission features, and dust continuum emission vary with position in the
galaxy but can be accounted for everywhere without recourse to extinction by
silicates. The brightest mid-infrared peak (which is displaced from the
nucleus) has elevated levels of both continuum and 11.1--12.9 micron `plateau'
emission, indicative of dust heated within a photo-dissociation region. Spectra
obtained over the course of 3 yr at the position of the brightest mid-infrared
peak show no significant time variation.
