\newif\ifimagen\imagentrue
\documentclass[12pt,letterpaper,oneside,american]{book}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage{graphicx}
\newcommand{\sunit}[1]{\mbox{ #1}}
\setcounter{chapter}{5}
\setcounter{page}{93}
\usepackage{babel}

\pagestyle{empty}
\thispagestyle{empty}
\begin{document}
\includegraphics[scale=0.6]{sounding}
\clearpage% page: 0
\includegraphics[scale=0.6]{pblevolve}
\clearpage% page: 1
\includegraphics[scale=0.6]{pblexample1}
\clearpage% page: 2
\includegraphics[scale=0.6]{sound17}
\clearpage% page: 3
\includegraphics[scale=0.6]{downdraftcool}
\clearpage% page: 4
\includegraphics{irsfrac}
\clearpage% page: 5
%Options: -png
\end{document}
