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\begin{document}

File plague2.ps, programs plague2.ps plague3.ps sub32.ps worms.ps .


\begin{figure}
  \begin{center}
    \leavevmode
    \epsfxsize 5in
    \epsfbox{plague2.ps}
  \end{center}
  \caption{plague2}
\end{figure}

\begin{figure}
  \begin{center}
    \leavevmode
    \epsfxsize 5in
    \epsfbox{plague3.ps}
  \end{center}
  \caption{plague3}
\end{figure}

\begin{figure}
  \begin{center}
    \leavevmode
    \epsfxsize 5in
    \epsfbox{sub32.ps}
  \end{center}
  \caption{sub32}
\end{figure}

\begin{figure}
  \begin{center}
    \leavevmode
    \epsfxsize 5in
    \epsfbox{worms.ps}
  \end{center}
  \caption{worms}
\end{figure}
\end{document}
