Abundance ratios invoving Mn, Cu, Zn, Gd, Dy, and Fe. Error bars are defined as in Fig. 1. Symbols: triangles are results of this work, where filled are barium stars and open, those stars considered to be normal instead of barium stars by Smiljanic et al. (2007); Filled squares: Allen & Barbuy (2006a). Results of the least-squares fits are shown for each panel. Only filled symbols were used in the fits. The straight line is shown only for fits with . The results for the least-squares fits are given in Table 7.