\begin{table}%T3 
\par
\caption{\label{t_descr}Summary of the spectral appearance of the detected targets.}
\small     
%\centerline
{                      
 \begin{tabular}{lccc}       
\hline\hline\noalign{\smallskip}
Object    &SED$^a$       &Enstatite$^b$ &Forsterite$^b$\\
\noalign{\smallskip}
\hline\noalign{\smallskip}
MBM~12-1  &Photosphere & --       & --\\
MBM~12-2  &Full        & --       & 19, 27.8, 33~\mic \\ 
MBM~12-3  &TO candidate& 9.3:     & 11.3:, 19:, 27.8, 33~\mic \\
MBM~12-4  &Full        & --       & 11.3:, 19:, 27.8, 33~\mic \\
MBM~12-5  &Full        & --       & 19, 27.8, 33~\mic \\
MBM~12-6  &TO candidate& 9.3~\mic& 27.8, 33~\mic \\
MBM~12-10 &TO candidate& 9.3~\mic & 23.4, 27.8~\mic\\
MBM~12-12 &Full        & 9.3~\mic & 11.3, 19, 27.8, 33~\mic\\
\hline
\end{tabular}}
\smallskip
$^a$  We distinguish between a ``full'' and a 
``transitional'' disc, based on the presence or absence of excess emission at 
wavelengths shorter than~8~micron, and write ``transitional object (TO) 
candidate'' when this classification needs to be confirmed by additional
photometry.\\
$^b$  We list the wavelengths
at which features of enstatite and forsterite are present. Colons 
indicate uncertain detections. 
\par
\end{table}