\begin{table}%t11
\par
\caption {\label{m67}Literature abundance determinations for M~67 based on high resolution
spectroscopy.}                  
%\centerline
 {          
\begin{tabular}{l r r r r r r r}     
\hline\hline
\noalign{\smallskip}        
        & {\it Here} & 
        T00\tablefootmark{a} & 
	S00\tablefootmark{b} & 
	Y05\tablefootmark{c} & 
	R06\tablefootmark{d} &
	P08\tablefootmark{e} & 
	S09\tablefootmark{f} \\
\hline
$R=\lambda/\delta\lambda$ & 30~000   & 30--60~000 & 30~000  & 28~000   & 45~000   & 100~000	  & 50~000    \\
$S/N$                       & 50--100 & $\geq$100 & 40--70 & 30--100 & 90--180 & $\simeq$80 & 100--300 \\
$[$Fe/H$]$  &  +0.05~$\pm$~0.02($\pm$0.10) & --0.03~$\pm$~0.04 & --0.05~$\pm$~0.01 &  +0.02~$\pm$~0.01 &  +0.03~$\pm$~0.01 &  +0.03~$\pm$~0.04 & 0.00~$\pm$~0.01 \\	   
$[$Al/Fe$]$ &  +0.03~$\pm$~0.02($\pm$0.05) &  +0.14~$\pm$~0.07 & --	&  +0.17~$\pm$~0.01 & --0.06~$\pm$~0.04 & --0.03~$\pm$~0.11 & --	      \\
$[$Ba/Fe$]$ &  +0.25~$\pm$~0.02($\pm$0.06)	    &  +0.07~$\pm$~0.12 &  +0.21~$\pm$~0.20 & --0.02~$\pm$~0.03 & -- 	    & --	      & --	      \\
$[$Ca/Fe$]$ & --0.16~$\pm$~0.03($\pm$0.03) &  +0.05~$\pm$~0.09 & --0.02~$\pm$~0.03 &  +0.07~$\pm$~0.02 &  +0.05~$\pm$~0.04 &  +0.03~$\pm$~0.07 & --	   \\
$[$Co/Fe$]$ &  +0.08~$\pm$~0.06($\pm$0.06) &  +0.08~$\pm$~0.07 & --	     & --	       & --		 & --  	   & --	   \\
$[$Cr/Fe$]$ &  +0.01~$\pm$~0.03($\pm$0.06) &  +0.10~$\pm$~0.09 & --	     & --	       & --0.01~$\pm$~0.04 &  +0.03~$\pm$~0.09 & --	   \\
$[$La/Fe$]$ &  +0.05~$\pm$~0.06($\pm$0.09) &  +0.13~$\pm$~0.10 & --	     &  +0.11~$\pm$~0.02 & --		 & --  	   & --	   \\
$[$Mg/Fe$]$ &  +0.27~$\pm$~0.04($\pm$0.10) &  +0.10~$\pm$~0.06 & --0.11~$\pm$~0.08 &  +0.16~$\pm$~0.02 & --0.01~$\pm$~0.03 & --  	   & --	   \\
$[$Na/Fe$]$ &  +0.08~$\pm$~0.09($\pm$0.04) &  +0.19~$\pm$~0.08 & --0.05~$\pm$~0.05 &  +0.30~$\pm$~0.03 &  +0.04~$\pm$~0.07 & --0.02~$\pm$~0.07 & --	   \\
$[$Ni/Fe$]$ &  +0.05~$\pm$~0.01($\pm$0.10) &  +0.04~$\pm$~0.08 &  +0.04~$\pm$~0.06 &  +0.08~$\pm$~0.02 & --0.01~$\pm$~0.04 & --0.02~$\pm$~0.07 & --	   \\
$[$O/Fe$]$  &  +0.04~$\pm$~0.10($\pm$0.03) &  +0.02~$\pm$~0.06 & --0.02~$\pm$~0.08 &  +0.07~$\pm$~0.02 & --0.04~$\pm$~0.01 & --0.07~$\pm$~0.09 & --	   \\
$[$Sc/Fe$]$ & --0.03~$\pm$~0.04($\pm$0.08) &  +0.10~$\pm$~0.06 & --	     & --	       & --		 & --  	   & --	   \\
$[$Si/Fe$]$ &  +0.10~$\pm$~0.02($\pm$0.07) &  +0.10~$\pm$~0.05 & --	&  +0.09~$\pm$~0.03 &  +0.03~$\pm$~0.04 & --0.03~$\pm$~0.06 & --	      \\
$[$Ti/Fe$]$ & --0.04~$\pm$~0.06($\pm$0.06) &  +0.04~$\pm$~0.13 & --	     &  +0.12~$\pm$~0.02 & --0.03~$\pm$~0.04 & --0.02~$\pm$~0.11 & --	   \\
$[$V/Fe$]$  &  +0.15~$\pm$~0.13($\pm$0.14) &  +0.15~$\pm$~0.16 & --	     & --	       & --		 & --  	   & --	   \\
$[$Y/Fe$]$  & --0.05~$\pm$~0.04($\pm$0.12) &  +0.01~$\pm$~0.14 & --	     & --	       & --		 & --  	   & --	   \\
\hline             	     
\end{tabular}}
\vspace*{-2mm}
\tablefoot{
\tablefoottext{a}{\citet{taut00}, from 6 red clump stars.}
\tablefoottext{b}{\citet{she00}, from 4 turn-off stars (we ignored blue
	stragglers).}
\tablefoottext{c}{\citet{yong05}, from 3 red clump stars.}
\tablefoottext{d}{\citet{ran06}, from 8 dwarfs and 2 slightly evolved stars.}
\tablefoottext{e}{\citet{pace08}, from 6 main-sequence stars.}
\tablefoottext{f}{\citet{san09}, from 3 red clump giants and 6 dwarfs.}}  
\vspace*{6mm} 	     
\end{table}