We study blue horizontal branch (BHB) and RR Lyrae stars in the Rogers et al. (1993a) fields and compare their velocity and density distributions with other surveys in the same part of the sky. Photometric data are given for 176 early-type stars in the northern field. We identify fourteen BHB stars and four possible BHB stars, and determine the selection efficiency of the Century Survey, the HK Survey, and the SDSS survey for BHB stars. We give light curves and γ radial velocities for three type ab RR Lyrae stars in the northern field; comparison with the nearby LON EOS Survey shows that there is likely to be an equal number of lower-amplitude type ab RR Lyrae stars that we do not find. There are therefore at least twice as many BHB stars as type ab RR Lyrae stars in the northern field -similar to the ratio in the solar neighborhood. The velocity distribution of the southern field shows no evidence for an anomalous thick disk that was found by Gilmore et al. (2002); the halo velocity peaks at a slightly prograde rotational velocity but there is also a significant retrograde halo component in this field. The velocity distribution in the northern field shows no evidence of Galactic rotation for |Z|≥ 4 kpc and a slight prograde motion for |Z|< 4 kpc. The space densities of BHB stars in the northern field agree with an extrapolation of the power-law distribution recently derived by de Propris et al. (2010). For |Z| < 4 kpc, however, we observe an excess of BHB stars compared with this power-law. We conclude that these BHB stars mostly belong to a spatially flattened, nonrotating inner halo component of the Milky Way in confirmation of the Kinman et al. (2009) analysis of Century Survey BHB stars. Subject headings: stars: horizontal branch, Galaxy: structure, Galaxy: halo by Rodgers et al. (1993c). BHB stars can be identified with considerable certainty, for example, by using a (B − V ) vs (u − B) K plot (Kinman et al. 1994).GALEX ultraviolet magnitudes can also be used to identify BHB stars (Kinman et al. 2007b). Rodgers et al. (1993a) give no colors for their stars, only V magnitudes calculated from the Hubble Space Telescope (HST ) Guide Star Catalog (Lasker et al. 1990). We therefore obtain V , (B −V ) and (u−B) K photometry for most of the stars of spectral type A8 and earlier in the N R field. Photometry is also taken from the 2MASS and GALEX catalogs. In addition, the N R field is covered by the Northern Sky Variability Survey (hereafter N SV S; Wózniak et al. 2004) and the ASAS-3 variability survey (Pojmański, 2002). We use these two surveys to study variability among the early-type stars and identify possible new RR Lyrae stars. We obtain V light-curves and phase-corrected radial velocities for the three brightest RR Lyrae stars in the N R field.The radial velocity distribution of the stars is important because the N R and SR fields have Galactic longitudes for which the sight-line component of Galactic rotation is the greatest and thus for which radial velocity can distinguish between disk and halo populati...
