\begin{table}%t4 \caption{\label{Dust}Results of the spectral decomposition of the MIDI spectra.} %\centerline {\small \begin{tabular}{lcccc} \hline \hline Species & Total & 43~m & 62~m & 85~m\\ \hline 0.1~$\mu$m & $0.24\pm0.14$ & $0.00\pm0.00$ & $0.00\pm0.02$ & $0.00\pm0.00$\\ 1.5~$\mu$m & $0.64\pm0.10$ & $0.63\pm0.05$ & $0.80\pm0.03$ & $0.59\pm0.24$\\ cryst. & $0.12\pm0.03$ & $0.37\pm0.07$ & $0.20\pm0.02$ & $0.41\pm0.06$\\ Temp. & $355\pm5$~K & $403\pm14$~K & $453\pm4$~K & $490\pm25$~K\\ \hline \end{tabular}} \medskip Given are the mass fractions of the various components (Rows~1--3) and the temperature of the continuum (row~4) for the total spectrum and the correlated spectra. The first two rows give the values for the small and large amorphous dust gains. The third row lists the contribution from both the small and large crystalline grains, i.e., enstatite, forsterite, and quartz. \end{table}