\begin{figure}
  \resizebox{7.5in}{7.5in}{
   \includegraphics*[0.0in,0.0in][8.5in,8.5in]{part1/biogeo.ps}
  }
\caption{Annual air-sea flux of oxygen (shaded) plotted along with
potential density outcrops of the surface of the southern ocean from a
global $1^{\circ}\times 1^{\circ}$ integation with a telescoping
grid (to $\frac{1}{3}^{^\circ}$) at the equator.}
\label{fig:biogeo}
\end{figure}