Can I assume that means everyone on this list is entirely happy with
them exactly as written?  Ghu knows, boxes are simple, which is why
I picked them as the first R7RS-large effort.  But a little feedback
wouldn't hurt either.

--
John Cowan    xxxxxx@ccil.org    http://ccil.org/~cowan
This great college [Trinity], of this ancient university [Cambridge],
has seen some strange sights. It has seen Wordsworth drunk and Porson
sober. And here am I, a better poet than Porson, and a better scholar
than Wordsworth, somewhere betwixt and between.  --A.E. Housman