\chapter{Appendices}

\section{Appendices for Chapter~\ref{chap_first}}
\subsection{ A lovely subsection}
\lipsum[20-21]
\subsection{ Another lovely subsection}
\lipsum[21-22]

\section{Appendices for Chapter~\ref{chap_second}}
\subsection{Yet another lovely subsection}
\lipsum[23-24]
\subsection{Still a lovely subsection}
\lipsum[25-26]