A Search for Stars of Very Low Metal Abundance. V. Photoelectric UBV   Photometry of Metal-Weak Candidates from the Northern HK Survey
  We report photoelectric UBV data for 268 metal-poor candidates chosen from the northern HK objective-prism/interference-filter survey of Beers and colleagues. Over 40 % of the stars have been observed on more than one night, and most have at least several sets of photometric measurements. Reddening estimates, preliminary spectroscopic measurements of abundance, and type classifications are reported. 
P.Bonifacio (1), S. Monai (1), T.C. Beers (2) ((1) Osservatorio   Astronomico di Trieste, (2) Michigan State University, Dep...