\documentstyle{article}
\setlength{\textwidth}{14.0cm}
\setlength{\topmargin}{-1.0cm}
\setlength{\textheight}{21.0cm}

\begin{document}
\thispagestyle{empty}


\noindent
Fig.2. Intersections of periodic solutions of 
Henon--Heiles' system with plane $X = 0,  
\frac{dX}{dt}=\frac{dX}{dt}(X=0,Y,Y',H)$ for the full energy 
${1 \over 12}$ are displayed. Solution 5 lies in that plane and
other solutions cross this plane in a couple points each except
solution 4 which looks like a digit "8" and crosses the plane $X=0$ 
in a single point.

\begin{figure}
\vspace{1cm}
\begin{center}
\fbox{$\frac{d^{2}X}{\mathstrut dt^2} =  - X - 2 X Y, \ \ 
\frac{\mathstrut d^{2}Y}{dt^2} =  - Y - X^{2} + Y^{2}$}

\include{he10fig}

\end{center}
\end{figure}

\end{document}

