A search for radio sources close to 247 clusters of galaxies in the Abell catalogue has been carried out at the Molonglo Radio Observatory at a frequency of 408 MHz. A list of 116 sources near 89 clusters is given, identifications have been made and criteria for cluster membership have been established. A cluster luminosity function is derived in the range 1()23_10 25 WHz-l SCi, and spectra have been obtained for sources in 25 clusters utilizing published surveys made at other frequencies. It is found that there is no correlation between the richness of a cluster and its inclusion of at least one radio source, but those clusters containing multiple sources are significantly richer than average.

Ab8tractRadio positions with an accuracy of ~ 5 sec arc have been measured for a sample of 111 sources that have flux densities in the range O· 6 to 5· 5 f.u. at 408 MHz but which are not listed in the 4C catalogue. An investigation of the random background rates for both galaxies and BSO's shows that the expected chance identification rate is small for galaxies brighter than 19m and for BSO's to the plate limit. A comparison of optical and radio positions shows that radio-optical separations of up to 15 sec arc are common for galaxies of 18m or brighter, but rare for BSO's. The identification content, corrected for chance associations, is 16% BSO's and 20% galaxies.

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