--- trunk/langevinHull/langevinHull.tex	2010/11/04 16:01:58	3668
+++ trunk/langevinHull/langevinHull.tex	2010/11/04 16:08:44	3669
@@ -686,17 +686,13 @@ works as follows:
 \end{enumerate}
 
 \begin{figure}
-\begin{centering}
 \includegraphics[width=\linewidth]{parallel}
 \caption{When the sites are distributed among many nodes for parallel
   computation, the processors first compute the convex hulls for their
   own sites (dashed lines in left panel). The positions of the sites
-  that make up the convex hulls are then communicated to all
-  processors (middle panel).  The convex hull of the system (solid line in right panel) is the convex hull of the points on the hulls for all
-  processors.}
+  that make up the subset hulls are then communicated to all
+  processors (middle panel).  The convex hull of the system (solid line in right panel) is the convex hull of the points on the union of the subset hulls.}
 \label{fig:parallel}
-\end{centering}
-\label{fig:parallel}
 \end{figure}
 
 The individual hull operations scale with
