\documentclass[letter]{report}
\usepackage{epsfig}
\usepackage{amssymb}
\title{ Test Output }

\begin{document}

\begin{figure}[!h]
\caption{Experiment 1: Initial Mesh (Left) and Reference Mesh (Right)}
\includegraphics[width=2.5in, height=2.5in]{Exp1-initial.eps}
\includegraphics[width=2.5in, height=2.5in]{reference.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 1}
\includegraphics[width=2.5in, height=2.5in]{Exp1-1.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp1-2.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp1-3.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp1-4.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp1-5.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp1-6.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 2}
\includegraphics[width=2.5in, height=2.5in]{Exp2-1.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp2-2.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp2-3.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp2-4.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp2-5.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp2-6.eps}
\end{figure}

\begin{figure}[!h]
\caption{Experiment 3: Initial Mesh (Left) and Reference Mesh (Right)}
\includegraphics[width=2.5in, height=2.5in]{Exp1-initial.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-reference.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 3}
\includegraphics[width=2.5in, height=2.5in]{Exp3-1.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-2.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-3.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-4.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-5.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp3-6.eps}
\end{figure}

\begin{figure}[!h]
\caption{Experiment 4: Initial Mesh (Left) and Reference Mesh (Right)}
\includegraphics[width=2.5in, height=2.5in]{Exp4-initial.eps}
\includegraphics[width=2.5in, height=2.5in]{reference.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 4}
\includegraphics[width=2.5in, height=2.5in]{Exp4-1.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp4-2.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp4-3.eps}
\end{figure}

\begin{figure}[!h]
\caption{Experiment 5: Initial Mesh (Left) and Reference Mesh (Right)}
\includegraphics[width=2.5in, height=2.5in]{Exp5-initial.eps}
\includegraphics[width=2.5in, height=2.5in]{reference.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 5}
\includegraphics[width=2.5in, height=2.5in]{Exp5-1.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-2.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-3.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-4.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-5.eps}
\end{figure}

\begin{figure}[!h]
\caption{Optimal Meshes for Experiment 5}
\includegraphics[width=2.5in, height=2.5in]{Exp5-7.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-8.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-9.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-10.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-11.eps}
\includegraphics[width=2.5in, height=2.5in]{Exp5-12.eps}
\end{figure}

\end{document}
