--- a/text/blobdef.tex	Tue Feb 08 07:14:18 2011 -0800
+++ b/text/blobdef.tex	Tue Feb 08 07:19:38 2011 -0800
@@ -185,7 +185,7 @@
 and let $M_0^0,\ldots,M_0^k$ be the connected components of $M_0$.
 We say that a field 
 $a\in \cF(X)$ is splittable along the decomposition if $a$ is the image 
-under gluing and disjoint union of a fields $a_i \in \cF(M_0^i)$, $0\le i\le k$.
+under gluing and disjoint union of fields $a_i \in \cF(M_0^i)$, $0\le i\le k$.
 
 In the example above, note that
 \[