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Article Contents
1 Introduction
2 Observations
3 The method
4 The measured equivalent widths and the measured $\Delta W/\overline {W}$ ratio
5 The computed quantities
6 Comparison between the observed and computed ( $\Delta W/\overline {W}$) ratios
7 The mercury abundance and some comparisons with Paper I
8 Discussion
References

Copyright ESO 2001
Published by EDP Sciences