Ants
jmsjon664@aol.com (Mon, 02 Aug 2010 14:22:05 PDT)

Just yesterday I repaired a portion of a brick walk that had been
undermined by the activities of ants -- it had sunk about 3" below its
surroundings, enough for a stumble. I had originally underlain the
brick with landscape fabric, but clearly not enough of it in this spot.
Jim Jones
Lexington, MA