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\begin{document}

\begin{table}
\begin{small}
\caption[1]{{\small Incidence of Cleft Palate, from Birnbaum, Morrissey,
and Harris (1990) and Birnbaum (1989).}}
\begin{center}
\begin{tabular}{rrr|rrr|rrr|rrr}
\multicolumn{12}{c}{TBDD} \\
\multicolumn{12}{c}{} \\
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ \\ \hline
   &   &    &    &   &    &    &   &     &    &    \\
 3 & 0 &  7 &     6 & 0 &  8 &    24 & 0 &  9 &    96 &  6 &  7 \\
 3 & 0 & 11 &     6 & 0 &  9 &    24 & 0 &  9 &    96 &  7 &  7 \\
 3 & 0 & 10 &     6 & 0 &  9 &    24 & 0 &  7 &    96 &  3 &  3 \\
 3 & 0 &  9 &     6 & 0 & 10 &    24 & 0 &  9 &    96 &  9 &  9 \\
 3 & 0 & 10 &     6 & 0 &  8 &    24 & 0 &  5 &    96 & 10 & 10 \\
 3 & 0 &  8 &     6 & 0 &  8 &    24 & 0 &  9 &    96 &  2 &  3 \\
 3 & 0 &  7 &     6 & 0 & 10 &    24 & 0 &  8 &    96 &  7 &  8 \\
 3 & 0 & 10 &    12 & 0 &  3 &    24 & 1 &  9 &    96 &  1 &  3 \\
 3 & 0 &  9 &    12 & 0 &  9 &    24 & 0 & 11 &    96 &  9 &  9 \\
 3 & 0 & 10 &    12 & 0 &  7 &    24 & 0 &  6 &    96 &  8 &  9 \\
 3 & 0 &  2 &    12 & 0 &  8 &    24 & 0 &  9 &    96 &  8 &  8 \\
 3 & 0 &  9 &    12 & 0 &  9 &    24 & 0 &  9 &   192 &  6 &  6 \\
 3 & 0 &  9 &    12 & 0 &  5 &    24 & 0 &  8 &   192 &  9 &  9 \\
 3 & 0 & 10 &    12 & 0 &  6 &    24 & 0 &  6 &   192 &  4 &  4 \\
 3 & 0 &  9 &    12 & 0 &  8 &    24 & 0 &  9 &   192 &  6 &  6 \\
 6 & 0 & 11 &    12 & 0 &  8 &    48 & 3 &  5 &   192 &  7 &  7 \\
 6 & 0 &  6 &    12 & 0 &  9 &    48 & 2 &  9 &   192 & 10 & 10 \\
 6 & 0 &  3 &    12 & 0 & 10 &    48 & 0 &  8 &   192 &  7 &  7 \\
 6 & 0 &  7 &    12 & 0 &  6 &    48 & 0 &  8 &   192 &  5 &  5 \\
 6 & 0 &  3 &    12 & 0 &  8 &    48 & 0 & 10 &   192 &  9 &  9 \\
 6 & 0 &  9 &    12 & 0 &  9 &    48 & 0 &  5 &   192 &  4 &  4 \\
 6 & 0 & 10 &    12 & 0 & 10 &    48 & 0 &  8 &   192 &  7 &  7 \\
 6 & 0 &  9 &    12 & 0 &  9 &    48 & 0 &  3 &   192 &  8 &  8 \\
 6 & 0 &  3 &    12 & 0 &  7 &    48 & 4 &  9 &   192 &  9 &  9 \\
 6 & 0 &  9 &    24 & 0 &  8 &    48 & 0 &  9 &   192 & 10 & 10 \\
 6 & 0 & 11 &    24 & 0 & 11 &    48 & 0 &  8 &  \\
   &   &    &    &   &    &    &   &     &    &    \\
\end{tabular}


\begin{tabular}{rrr|rrr|rrr|rrr}
\multicolumn{12}{c}{} \\
\multicolumn{12}{c}{TCDD} \\
\multicolumn{12}{c}{} \\
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ &
$Dose$ & $Y_{ij}$ & $n_{ij}$ \\ \hline

   &   &    &    &   &    &    &   &     &    &    \\
 6 & 0 &  7 &    12 & 2 &  7 &    12 & 1 &  7 &    18 &  9 & 10 \\
 6 & 0 &  8 &    12 & 4 &  9 &    12 & 0 &  6 &    18 &  5 &  7 \\
 6 & 0 &  9 &    12 & 2 & 10 &    15 & 7 & 10 &    18 & 10 & 10 \\
 6 & 0 & 10 &    12 & 0 &  7 &    15 & 3 &  5 &    18 &  1 &  7 \\
 6 & 0 &  5 &    12 & 0 & 10 &    15 & 3 &  9 &    18 &  6 &  7 \\
 6 & 0 &  9 &    12 & 3 &  8 &    15 & 6 &  6 &    18 &  0 & 10 \\
 6 & 0 &  8 &    12 & 5 &  7 &    15 & 2 &  7 &    18 &  3 &  8 \\
 6 & 0 &  9 &    12 & 3 &  8 &    15 & 7 & 10 &    18 &  8 & 10 \\
 6 & 0 & 10 &    12 & 1 &  6 &    15 & 1 &  8 &    18 &  5 &  8 \\
 6 & 0 & 10 &    12 & 1 & 11 &    15 & 2 & 10 &    18 & 11 & 11 \\
 6 & 0 & 10 &    12 & 1 &  3 &    18 & 5 &  5 &       &    &    \\
12 & 0 & 10 &    12 & 0 &  9 &    18 & 10 & 10 &      &    &    \\
   &   &    &    &   &    &    &   &     &    &    \\  \hline

\end{tabular}
\end{center}
\end{small}
\end{table}


\end{document}