THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 103:433-466, 1996 April A CATALOG OF CANDIDATE FIELD HORIZONTAL-BRANCH AND A-TYPE STARS. II. TIMOTHY C. BEERS, RONALD WILHELM, AND STEPHEN P. DOINIDIS Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 AND CAROLINE J. MATTSON Department of Astronomy, University of Virginia, Charlottesville, VA 22904 ABSTRACT We present coordinates and brightness estimates for 4175 candidate field horizontal-branch and A-type stars, in the magnitude range 10 <= B <= 15.5, selected using an objective-prism/interference-filter survey technique. The candidates lie primarily in the northern Galactic hemisphere and complement a previously published sample of southern Galactic hemisphere candidates. Available spectroscopy and photometry indicates that the great majority of the candidates are likely to be bona fide members of either the field blue horizontal- branch population or the blue, metal-deficient, high surface gravity stars referred to by Preston, Beers, & Schectman [1994, AJ, 108, 538] as BMP stars. The remaining stars in the catalog are likely to be a mix of metal-deficient turnoff stars, metallic-line (Am) stars, field red horizontal-branch stars, optical doubles with overlapping objective-prism spectra, and (particularly among the fainter candidates) inadvertently included late-type stars. Subject headings: catalogs -- stars: horizontal-branch