Use \subref in unfolding schematic image.

This is better than hardcoding subfigure references in the caption.

diff --git a/src/apparatus/procedure.tex b/src/apparatus/procedure.tex
index adefad39a00c98c33eec22a03718dca4c7cfe3fc..a1c5be4b694f8005bf9cd6e74cf9db0f7c4aeecf 100644 (file)
--- a/src/apparatus/procedure.tex
+++ b/src/apparatus/procedure.tex
@@ -39,16 +39,17 @@ multi-domain test proteins.
   \subfloat[][]{\asyinclude{figures/expt-sawtooth/expt-sawtooth}%
     \label{fig:expt-sawtooth}}
   % Possibly use carrion-vazquez00 figure 2 to show scale of afm tip
-  \caption{(a) Schematic of the experimental setup for mechanical
-    unfolding of proteins using an AFM (not to scale).  An experiment
-    starts with the tip in contact with the substrate surface, which
-    is then moved away from the tip at a constant speed.  $x_t$ is the
-    distance traveled by the substrate, $x_c$ is the cantilever
-    deflection, $x_u$ is the extension of the unfolded polymer, and
-    $x_f=x_{f1}+x_{f2}$ is the extension of the folded polymer.  (b)
-    An experimental force curve from stretching a ubiquitin polymer
-    with the rising parts of the peaks fitted to the WLC\index{WLC}
-    model (\cref{sec:tension:wlc})\citep{chyan04}.  The pulling speed
+  \caption{\subref{fig:unfolding-schematic} Schematic of the
+    experimental setup for mechanical unfolding of proteins using an
+    AFM (not to scale).  An experiment starts with the tip in contact
+    with the substrate surface, which is then moved away from the tip
+    at a constant speed.  $x_t$ is the distance traveled by the
+    substrate, $x_c$ is the cantilever deflection, $x_u$ is the
+    extension of the unfolded polymer, and $x_f=x_{f1}+x_{f2}$ is the
+    extension of the folded polymer.  \subref{fig:expt-sawtooth} An
+    experimental force curve from stretching a ubiquitin polymer with
+    the rising parts of the peaks fitted to the WLC\index{WLC} model
+    (\cref{sec:sawsim:tension:wlc})\citep{chyan04}.  The pulling speed
     used was $1\U{$\mu$m/s}$.  The irregular features at the beginning
     of the curve are due to nonspecific interactions between the tip
     and the substrate surface, and the last high force peak is caused