\begin{table}%T3
\caption{\label{lithium}Equivalent widths and $S/N$ measurements of the \ion{Li}{i} 670.78~nm together with the best results for the $\chi^2$ three free parameters and the sensitivity of the analysis.}
\small
%\centering
\par
 \begin{tabular}{lccccccccccc}
\hline \hline\noalign{\smallskip}
Star & $W_\lambda$& $S/N$ &$ \Delta\lambda$ & $A(^7$Li$)$ &\multicolumn{3}{c}{\isor}&&\multicolumn{3}{c} {$\Delta^6{\rm Li}/^7{\rm Li}$} \\
\cline{6-8}
\cline{10-12}
&(pm)& &(nm)&(dex)\\
&&&&&ncor &cor & best-esti && cont   &  $\Delta\lambda_{\rm cover}$& $\zeta_{\rm broad}-\sigma_\zeta$\\
\hline
BD~$-04^\circ~3208$ &  2.37& 602 & 0.01036& 2.27 & 0.047& $0.043$ &$0.047\pm0.039$&&  $-0.037$ & 0.003& 0.009\\
G 64-37 & 1.60 & 496 & --0.00125& 2.04  & 0.006 &$0.000$ &$0.006\pm0.039$&& 0.028&0.023&0.013\\
BD~$+02^\circ~3375$ &  3.10 & 417& 0.00745 & 2.04 & 0.007 & $-0.001$ &$0.007\pm0.029$&&0.023 &0.007& 0.013 \\ 
BD~$+20^\circ~3603$ &  2.56&437& 0.00626& 2.14 & 0.004&0.025 & $0.025\pm0.025$ & &  $-0.003$ &0.002& 0.011\\ 
BD~$+26^\circ~3578$ &  2.37& 611&  0.00163 & 2.21 &0.074 &$0.004$ &$0.004\pm0.028$&&  0.017 &  0.014& 0.016\\ 
\hline
\end{tabular} 
\end{table}