| Abstract | Summary. 35 galaxies with velocities up to 6800 km/s, taken from Zwicky's seven lists of compact galaxies have now been observed at Nancay. From the 21-cm neutral hydrogen emission line flux detected in eight of these objects, it is shown that a high proportion of these compact galaxies with sharp emission line optical spectra are indeed hydrogen rich, though similar to late type galaxies. A possible instrumental selective effect is discussed. Key words: neutral hydrogen - compact galaxies - 21-cm radiation |
