diff -r a96f3d2ef852 -r a571e37cc68d text/blobdef.tex
--- a/text/blobdef.tex	Mon Jul 05 07:47:23 2010 -0600
+++ b/text/blobdef.tex	Wed Jul 07 08:47:50 2010 -0600
@@ -137,7 +137,8 @@
 behavior}
 \nn{need to allow the case where $B\to X$ is not an embedding
 on $\bd B$.  this is because any blob diagram on $X_{cut}$ should give rise to one on $X_{gl}$
-and blobs are allowed to meet $\bd X$.}
+and blobs are allowed to meet $\bd X$.
+Also, the complement of the blobs (and regions between nested blobs) might not be manifolds.}
 
 Now for the general case.
 A $k$-blob diagram consists of