immunity

Class,

today's homework includes:
1.  read the first part of section 48.4.  I will be assigning the entire section, but please do not read all of it in one sitting.  It is too complicated to cover like that.

2.  This friday we'll be taking our short field trip to the bookstore to but the new funbooks (its biology, so its not work!).  The cost is 49.00 exactly.  The preferred method of payment is by check (made out to "bear essentials").  Please have payment ready on Friday.