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\begin{figure}[htbp]
\ifthenelse{\equal{IJMPB}{\TschStyle}}{%
\centerline{\psfig{file=PictureLarge_nb004_.eps,width=2.50in}\psfig{file=PictureLarge_nb005_.eps,width=2.50in}}
}{}%
\ifthenelse{\equal{arXiv}{\TschStyle}}{%
\centerline{\includegraphics[scale=0.60]{PictureSmall_nb004_.png}\includegraphics[scale=0.60]{PictureSmall_nb005_.png}}
}{}%
\ifthenelse{\equal{TeX4ht}{\TschStyle}}{%
\centerline{\includegraphics[scale=0.60]{PictureLarge_nb004_.png}\includegraphics[scale=0.60]{PictureLarge_nb005_.png}}
}{}
\vspace*{8pt}
\caption{The unfiltered spectral distribution 
         of the radiation of the ground
         under the assumption that the earth is a black body
         with temperature $T = {\rm 290}\,{\rm K}$
         (left: in wave length space,
          right: in frequency space).}   
\label{Fig:nb004nb005}
\end{figure}
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