diff -r ccc2d7fe57b3 -r a9b9094e3b9c pnas/pnas.tex
--- a/pnas/pnas.tex	Fri Dec 03 19:11:40 2010 -0600
+++ b/pnas/pnas.tex	Mon Dec 06 11:57:19 2010 -0600
@@ -249,17 +249,17 @@
 % figures
 
 \newcommand{\mathfig}[2]{\ensuremath{\hspace{-3pt}\begin{array}{c}%
-  \raisebox{-2.5pt}{\includegraphics[width=#1\textwidth]{diagrams/#2}}%
+  \raisebox{-2.5pt}{\includegraphics[width=#1\textwidth]{#2}}%
 \end{array}\hspace{-3pt}}}
 
 
 % packages
 
 \usepackage{tikz}
-\usetikzlibrary{shapes}
-\usetikzlibrary{backgrounds}
-\usetikzlibrary{decorations,decorations.pathreplacing}
-\usetikzlibrary{fit,calc,through}
+%\usetikzlibrary{shapes}
+%\usetikzlibrary{backgrounds}
+%\usetikzlibrary{decorations,decorations.pathreplacing}
+%\usetikzlibrary{fit,calc,through}
 
 \usepackage[all,color]{xy}
 \SelectTips{cm}{}
@@ -1356,36 +1356,20 @@
 
 
 \begin{figure}
-\centering
-\begin{tikzpicture}[%every label/.style={green}
-]
-\node[fill=black, circle, label=below:$E$, inner sep=1.5pt](S) at (0,0) {};
-\node[fill=black, circle, label=above:$E$, inner sep=1.5pt](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}
+\begin{equation*}
+\mathfig{0.18}{figure1}
+\end{equation*}
 \caption{Combining two balls to get a full boundary.}\label{blah3}\end{figure}
 
 \begin{figure}
-\centering
-\begin{tikzpicture}[%every label/.style={green},
-				x=1.5cm,y=1.5cm]
-\node[fill=black, circle, label=below:$E$, inner sep=2pt](S) at (0,0) {};
-\node[fill=black, circle, label=above:$E$, inner sep=2pt](N) at (0,2) {};
-\draw (S) arc  (-90:90:1);
-\draw (N) arc  (90:270:1);
-\draw (N) -- (S);
-\node[left] at (-1/4,1) {$B_1$};
-\node[right] at (1/4,1) {$B_2$};
-\node at (1/6,3/2)  {$Y$};
-\end{tikzpicture}
+\begin{equation*}
+\mathfig{0.14}{figure2}
+\end{equation*}
 \caption{From two balls to one ball.}\label{blah5}\end{figure}
 
 \begin{figure}
 \begin{equation*}
-\mathfig{.23}{ncat/zz2}
+\mathfig{.23}{zz2}
 \end{equation*}
 \caption{A small part of $\cell(W)$.}
 \label{partofJfig}
@@ -1393,7 +1377,7 @@
 
 \begin{figure}
 %$$\mathfig{.4}{deligne/manifolds}$$
-$$\mathfig{.4}{deligne/mapping-cylinders}$$
+$$\mathfig{.4}{mapping-cylinders}$$
 \caption{An $n$-dimensional surgery cylinder.}\label{delfig2}
 \end{figure}