We have compiled a sample of $sim 9600$ bright, $ile 18.95$, red, $b_j-r>2$, candidate galaxies in an area of 220 deg$^2$. These are luminous, $L > L^*$, field early-type galaxies with redshifts $0.3 la z la 0.6$. We present a redshift catalogue of a sub-sample of 581 targets. The galaxies were selected according to their broadband $b_jri$ colours from United Kingdom Schmidt Telescope plates, and have a surface density on the sky of only $sim 50 $deg$^{-2}$. Such luminous field galaxies are virtually absent from published redshift surveys and the catalogue provides a large sample of the most luminous normal galaxies, at cosmological distances. The statistical properties of the galaxy spectra, including absorption line and emission line measures, are presented and a composite spectrum constructed. The nature of the sample, combined with the relatively bright apparent magnitudes make the galaxies suitable targets for several key investigations in galaxy evolution and cosmology.
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