\begin{table}%T4
\caption{\label{loss}Comparison of times of emission-to-absorption reversal of \sax\
with two other Be/X-ray systems.}
%\centerline
{
\begin{tabular}{cc|cc|cc}
\hline \hline  
\multicolumn{2}{c|}{\sax$^a$}	&\multicolumn{2}{c|}{4U~0115+63$^b$}	&\multicolumn{2}{c}{X Per$^c$}  \\
MJD	&{\it EW}(H$\alpha$)  &MJD	&{\it EW}(H$\alpha$)  &MJD	&{\it EW}(H$\alpha$) 	\\
	&($\AA$)	&	&($\AA$)	&	&($\AA)$ \\
  \hline 
52~853	&--2.20	&50~481	&--3.6	&47~925	&--1.3	\\
52~869	&--1.07	&50~647	&+1.3	&47~950	&--1.14	\\
52~897	&+2.32	&50~767	&--0.4	&48~137	&+1.6	\\
	&	&	&	&48~194	&+2.7	\\
  \hline
  \end{tabular}}
  \smallskip
$^a$  This work.	 \\
$^b$  Negueruela et~al. (\cite{neg01}).  \\
$^c$  Clark et~al. (\cite{cla01}).
\end{table}