Winter's back...

We have a nice dusting of snow on the ground... again - with 2-4 more inches in the forecast!  A late April Fool's Joke?  My response is to change the style of my blog to something more Spring-like.  I met with Jeffrey today and we agreed to add variation to the end of section 4.3.  It fit there about as well as anywhere.  I also acquired all of the recent edits and exercises Jeff worked on, and posted a newer version of the book here. Enjoy!