Extinction curves for the stars in the sample. Each panel shows the calculated extinction curve (solid line), smoothed curve (small open circles, offset two units for clarity), FM90 fit (dashed line), CCM relation for ﹩R_{V}=3.1﹩ (dotted line), and extinction in the U and B bands (large open circles). One sigma error bars for the unsmoothed extinction curve are plotted at four representative wavelengths. The value of Δ(B−V) between the reddened and comparison stars is listed.