--- a/text/ncat.tex	Mon Dec 07 14:58:30 2009 +0000
+++ b/text/ncat.tex	Tue Dec 08 01:08:53 2009 +0000
@@ -153,6 +153,16 @@
 which is natural with respect to the actions of homeomorphisms.}
 
 \begin{figure}[!ht]
+$$
+\begin{tikzpicture}[every label/.style={green}]
+\node[fill=black, circle, label=below:$E$](S) at (0,0) {};
+\node[fill=black, circle, label=above:$E$](N) at (0,2) {};
+\draw (S) arc  (-90:90:1);
+\draw (N) arc  (90:270:1);
+\node[left] at (-1,1) {$B_1$};
+\node[right] at (1,1) {$B_2$};
+\end{tikzpicture}
+$$
 $$\mathfig{.4}{tempkw/blah3}$$
 \caption{Combining two balls to get a full boundary}\label{blah3}\end{figure}