Spectroscopy of selected areas of the two Giant H II Regions (GHR) NGC 5471 and NGC 604 shows convincing evidence for the existence of ionized gas at high velocities (1000 km/sec or greater) from the analysis of the profile of the Balmer (in NGC 604) and the forbidden O III (in NGC 5471) lines. The association of these effects with the presence of

The efficiency ratio of massive star formation in the arms of the spiral NGC 628 to that in the interarm region has been determined from the sizes and positions of its H II regions following the method described in Cepa and Beckman (1989). The variation of this relative star formation efficiency with radius shows a very similar behaviour for each

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Preliminary results are presented from a spectroscopy survey of IRAS sources with colors similar to those of planetary nebulae. Two new planetary nebulae, some H-alpha emission line stars, one peculiar source which is probably a premain-sequence object and a new Seyfert I galaxy have been found.

Photometric results for the galaxy NGC 4736 are presented, including IR and visible profiles. After correction for the extinction within the galaxy based on measured neutral gas surface densities, the profiles in the individual bands and in color indices are interpreted in terms of the radial distribution of stellar populations. The behavior of the