Comparison of abundances ([X/H]) for stars in common between this study and those of Valenti & Fischer (2005), Reddy et al. (2003, 2006), and Adibekyan et al. (2012). The elements (X) are indicated on the abscissa. The two left-most boxes in each panel show the T_eff (denoted by T) and log g (denoted by g) comparisons. Please note that the scale on the ordinate for the temperature should be multiplied by a factor 100. The differences are given as our values minus their values, and the differences are also listed in Table 3. In the boxplots the central horizontal line represents the median value. The lower and upper quartiles are represented by the outer edges of the boxes, i.e. the box encloses 50% of the sample. The whiskers extend to the farthest data point that lies within 1.5 times the inter-quartile distance. Those stars that do not fall within the reach of the whiskers are regarded as outliers and are marked by dots.