1. LIFE: The Science of Biology by Sadava and Heller. $75 OBO.
   I bought from bookstore for $200+ last year. excellent condition- has a bit of highlighting.

1. On the Origin of Species by Charles Darwin
   Condition: Bought new from Bookstore last year- still new condition
   Price: $15

2. Coevolution by William H. Durham
   Condition: Very limited highlighting, bought used from bookstore last year, but good condition
   Price: $20

All prices are negotiable-- let me know what sounds good for you!