On Nov 1, 2015, at 1:14 PM, I (Jim Saxe) wrote
  
 Jacob Bloom mentioned this dance:
 
 
  Borrowdale Exchange - Scatter mixer
 ... 
 
 I've also seen something similar where dancers mix only
 within their group of three couples (eventually getting
 original partners back) and throughout the whole hall.
 ... 
Aargh.  I meant "... and *not* throughout the whole hall."
--Jim