\begin{table}%t8
\caption{Comparisons with the results by other authors.\label{tab8}}
%\centerline
 {\begin{tabular}{ r c c l l c c l l}
\hline \hline
\noalign{\smallskip}
 Obj.  & log $A_{\rm C}^{a}$ & log $A_{\rm C}$ & log $A_{\rm O}^{a}$
 & log $A_{\rm O}$ &  $^{12}$C/$^{13}$C$^{~a}$ &
$^{12}$C/$^{13}$C & $^{16}$O/$^{17}$O$^{~a}$ &   $^{16}$O/$^{17}$O\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
$\alpha$ Tau & 
8.38 $\pm$ 0.04 & 8.40 $\pm$ 0.07$^b$ & 8.78 $\pm$ 0.07 & 8.78 $\pm$ 0.08$^b$ &
11 $\pm$ 1  &  10 $\pm$ 2$^b$ & $>$1000  & ~560 $\pm$ 180$^f$ \\
    &            &  8.35 $\pm$ 0.20$^c$ &               & 8.93 $\pm$ 0.20$^c$ &
    &   10 $\pm$ 2$^c$         &               &             \\    
$\nu$  Vir   & 
8.13 $\pm$ 0.08 & 8.51 $\pm$ 0.08$^b$ & 8.84 $\pm$ 0.05 & 8.91 $\pm$ 0.06$^b$ &
~9 $\pm$ 1  &   12 $\pm$ 2$^b$  &      & \\
$\alpha$ Cet  & 
8.64 $\pm$ 0.05 & 8.20 $\pm$ 0.30$^c$ & 8.98 $\pm$ 0.14 & 8.93 $\pm$ 0.30$^c$& 
  11 $\pm$ 1  &  10 $\pm$ 2$^c$ &   &   \\
$\beta$ Peg  & 
8.27 $\pm$ 0.05 & 8.42 $\pm$ 0.07$^b$ & 8.77 $\pm$ 0.12 & 8.81 $\pm$ 0.06$^b$ &
  ~8 $\pm$ 1  &  ~8 $\pm$ 2$^b$ &       $>$2500 & 1050 $\pm$ 375$^f$\\
     &        &  8.20 $\pm$ 0.40$^c$ &                  & 8.93 $\pm$ 0.40$^c$ &
     &   ~5 $\pm$ 3$^c$    &                    &                \\
$\mu$ Gem &  8.32 $\pm$ 0.06 & 8.43 $\pm$ 0.04$^b$ & 8.81 $\pm$ 0.13 &
 8.82 $\pm$ 0.12$^b$  & 11 $\pm$ 1 &  13 $\pm$ 2$^b$ & ~~~798 $\pm$ 73 & 
 ~325 $\pm$ 112$^f$ \\
$\delta$ Vir & 
8.50 $\pm$ 0.06 & 8.61 $\pm$ 0.10$^b$ & 8.84 $\pm$ 0.15 & 8.82 $\pm$ 0.06$^b$ &
12 $\pm$ 1  &  16 $\pm$ 4$^b$ &      &  \\
10 Dra  & 8.43 $\pm$ 0.14 & 8.59 $\pm$ 0.08$^b$ & 8.92 $\pm$ 0.18 & 
9.04 $\pm$ 0.09$^b$ & 15 $\pm$ 2 &  12 $\pm$ 3$^b$ &   &  \\
$\rho$ Per &  8.27 $\pm$ 0.07 & 8.46 $\pm$ 0.04$^b$ & 8.87 $\pm$ 0.07 & 
8.92 $\pm$ 0.15$^b$ & 10 $\pm$ 1  &  15 $\pm$  2$^b$ &   &  \\
$\alpha$ Her &   &        &     &        & 11 $\pm$ 1  & 17 $\pm$ 4$^d$    & 
~~~102 $\pm$ ~8 & ~190 $\pm$ 40$^f$ \\
    &     &       &     &    &    & ~5 $\pm$ 1$^e$  & & ~450 $\pm$ ~50$^e$ \\ 
30g Her & 8.35 $\pm$ 0.11 & 8.25 $\pm$ 0.07$^b$ & 8.75 $\pm$ 0.09 & 
8.73 $\pm$ 0.08$^b$ & 13 $\pm$ 1 &   10 $\pm$ 2$^b$ & ~~~211 $\pm$ 42 &
 ~675 $\pm$ 175$^g$  \\
\noalign{\smallskip}
\hline 
\end{tabular}}
\par
\smallskip
$^{{a}}$    Present results;
$^{{b}}$    Smith \& Lambert (\cite{Smith90}); 
$^{{c}}$    Decin et~al. (\cite{Decin03});
$^{{d}}$    Hinkle  et~al. (\cite{Hinkle76});  
$^{{e}}$    Maillard (\cite{Maillard74});  
$^{{f}}$    Harris \& Lambert (\cite{Harris84});
$^{{g}}$    Harris et~al. (\cite{Harris85}).  
\end{table}