--- a/teaching.html	Sat Jun 15 09:02:06 2013 -0400
+++ b/teaching.html	Sat Jun 15 09:03:46 2013 -0400
@@ -419,6 +419,7 @@
 
 </TABLE>
 <P>
+<!-- hhmts start --> Last modified: Sat Jun 15 09:03:38 EDT 2013 <!-- hhmts end -->
 <a href="http://validator.w3.org/check/referer">[Validate this page.]</a>
 </BODY>
 </HTML>