\begin{table}%t3
\caption{Abundances derived for HD~207538 expressed in the usual 
form $\log \epsilon$ (El) compared
with those estimated by Daflon et~al. (\cite{daflon99}) (Col.~3), 
by Gies \& Lambert (\cite{gies92})
(Col.~4) and the Sun (Grevesse et~al. \cite{grevesse96}, Col.~5).
 Errors have been estimated to be 
0.2~dex.\label{abundance}}
%\centerline
{\begin{tabular} {lcccc}
\hline
\hline
El & This  & D & G \& L & Sun \\
   &  work &   &        &   \\
\hline
He & 11.30&                 & 11.29 $\pm$ 0.05$^{\rm a}$& 10.99 $\pm$ 0.03\\
C  & 8.50 &                 & 8.40 $\pm$ 0.11$^{\rm a}$ & 8.55 $\pm$ 0.05$^{\rm b}$\\
N  & 8.11 & 7.99 $\pm$ 0.16 & 7.70 $\pm$ 0.06$^{\rm a}$ & 7.97 $\pm$ 0.07 \\
O  & 8.66 & 8.67 $\pm$ 0.16 & 8.78 $\pm$ 0.12$^{\rm a}$ & 8.88 $\pm$ 0.07$^{\rm b}$ \\
Al & 6.53 &                 & 6.62 $\pm$ 0.20$^{\rm a}$ & 6.47 $\pm$ 0.07 \\
Si & 7.61 & 7.74 $\pm$ 0.05 & 7.35 $\pm$ 0.02$^{\rm a}$ & 7.55 $\pm$ 0.05 \\
P  & 5.51 &                 &                       & 5.45 $\pm$ 0.04 \\
S  & 7.27 &                 & 7.21 $\pm$ 0.12       & 7.33 $\pm$ 0.11 \\
Fe & 7.10 &                 & 7.71 $\pm$ 0.23       & 7.50 $\pm$ 0.04 \\
Mn & 5.45 &                 &                       & 5.39 $\pm$ 0.03 \\
Ni & 5.80 &                 &                       & 6.25 $\pm$ 0.01 \\
Zn & 4.20 &                 &                       & 4.50 $\pm$ 0.08 \\
\hline
\end{tabular}}
\smallskip
$^a$ Average value calculated over the abundances reported for the 
five stars quoted in Table~\ref{he_ew}. \\
$^b$ According to a recent revision of the carbon and oxygen abundances in the Sun performed
by Allende Prieto et~al. (\cite{alle02}), these values should be $8.39  \pm 0.04$ and $8.69 \pm 0.07$ respectively. 
They are in better agreement with the B~star abundances. 
\end{table}