\begin{table}%T3
\tabcolsep4.5mm
  \caption{\label{tab3}\label{tab:variance}Relative   rms  error on galaxy number
    densities expected from cosmic variance in the three redshift samples.}
  \small
  %\centering
\par
  \begin{tabular}{l | c c c }
    \hline \hline
         &\multicolumn{3}{c}{$\sigma_{\rm counts}$}\\
    \hline
    Type & $0.5<z<0.7$ & $0.7<z<1$ & $1<z<1.3$ \\
       Early & 0.20 & 0.15 & 0.14 \\
    Late & 0.17 & 0.14 & 0.13 \\
    \hline
  \end{tabular}
\end{table}