\begin{table}%t3
\caption{\label{table:sharc}Source fluxes at 350~$\mu$m in a~25$''$~beam observed with \mbox{SHARC-II} at the~CSO.}
\small%\centerline
 {
\begin{tabular}{l l l}
\hline \hline 
Source & Flux & Concentration$^a$ \\ 
  & (Jy) &  \\ 
  \hline
GSS 30 & 2.5 &0.58 \\
 WL12& 6.7 & 0.59\\
  Elias 29& 4.3 & 0.72 \\
 VLA1623& 40 & 0.8 \\
 WL20S& 0.82& 0.64\\
 WL6& $<$0.4 & U   \\
 IRS 43& 2.1& 0.62 \\
 Elias 33& 4.4 & 0.55\\
 IRS 51& 1.4 & 0.64\\
 2MASS 16282& $<$0.2& U\\ 
 \hline
\end{tabular}}
\medskip
$^a$ See Sect.~5.1; U~= not determined since only flux upper limits \mbox{obtained}. 
\end{table}