All Figures

$\begin{figure} \par\includegraphics[angle=-90,width=12.5cm,clip]{3657.f1} \end{figure}$ Figure 1: Sample spectra in the Li region.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f2} \end{figure}$ Figure 2: Our NGC 6475 equivalent widths are plotted vs. the equivalent widths of JJ97 for the 10 stars in common.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f3}\end{figure}$ Figure 3: NGC 6475 Li abundance vs. $T_{\rm eff}$ : the present sample (filled triangles) is compared to those of JJ97 (circles) and J00 (open triangles); circled symbols denote stars whose membership is still to be confirmed, while down-pointing arrows represent upper limits in $\log~n$ (Li). Error bars are also shown.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f4a}\vspace*{3mm} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f4b} \end{figure}$ Figure 4: Li abundance vs. $T_{\rm eff}$ for the NGC 6475 merged sample (our sample+JJ97+J00). Top panel: open triangles denote single stars, while filled triangles indicate spectroscopic binary stars. Circled symbols denote stars whose membership is still to be confirmed. Bottom panel: stars with available projected rotational velocity are plotted as open circles: the size of the circles is proportional to $V\sin i$ ; stars with no CORAVEL information on rotational velocity are plotted as crosses.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f5} \end{figure}$ Figure 5: Comparison of the Li distributions of the NGC 6475 merged sample (filled triangles) and M 34 (Jones et al. 1997, open circles); circled symbols denote stars whose membership is still to be confirmed.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f6}\end{figure}$ Figure 6: The NGC 6475 Li distribution (filled triangles) is compared to those of the Pleiades (S93 $\rm {+}$ Jones et al. 1996, circles) and the Hyades (Thorburn et al. 1993, stars). Circled symbols denote stars whose membership is still to be confirmed.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f7a}\par\vspace*{3mm} \includegraphics[angle=-90,width=8.8cm,clip]{3657.f7b} \end{figure}$ Figure 7: Li abundance vs. $\log$ age for three ranges in $T_{\rm eff}$ ( ${\rm 6000\pm 100}$ K, ${\rm 5500\pm 100}$ K, ${\rm 5000\pm 100}$ K). In the top panel average $\log~n$ (Li) values for the Pleiades, NGC 6475+M 34 and the Hyades are shown. Error bars represent ${\rm 1\sigma }$ standard deviations from the average value; for the Pleiades in the range ${\rm 5000\pm 100}$ K, where the Li spread is present, we have plotted the maximum and minimum values of $\log~n$ (Li). In the bottom panel theoretical $\log~n$ (Li) values at various ages are plotted (D' Antona & Mazzitelli 1994), including two different treatments of overadiabatic convection: MLT is the mixing length theory model, CM is the Canuto & Mazzitelli model.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=12.5cm,clip]{3657.f1} \end{figure}$	Figure 1: Sample spectra in the Li region.
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$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f2} \end{figure}$	Figure 2: Our NGC 6475 equivalent widths are plotted vs. the equivalent widths of JJ97 for the 10 stars in common.
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$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f3}\end{figure}$	Figure 3: NGC 6475 Li abundance vs. $T_{\rm eff}$ : the present sample (filled triangles) is compared to those of JJ97 (circles) and J00 (open triangles); circled symbols denote stars whose membership is still to be confirmed, while down-pointing arrows represent upper limits in $\log~n$ (Li). Error bars are also shown.
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$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f5} \end{figure}$	Figure 5: Comparison of the Li distributions of the NGC 6475 merged sample (filled triangles) and M 34 (Jones et al. 1997, open circles); circled symbols denote stars whose membership is still to be confirmed.
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$\begin{figure} \par\includegraphics[angle=-90,width=8.8cm,clip]{3657.f6}\end{figure}$	Figure 6: The NGC 6475 Li distribution (filled triangles) is compared to those of the Pleiades (S93 $\rm {+}$ Jones et al. 1996, circles) and the Hyades (Thorburn et al. 1993, stars). Circled symbols denote stars whose membership is still to be confirmed.
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