Frank Berto's "The Dancing Chain" is the definitive history of the
derailer bicycle. It has been out of print for a couple of years, but
the new expanded 2nd edition has just arrived, and it's worth the wait!

http://sheldonbrown.com/harris/books.html#berto

Sheldon "Shift" Brown
+-------------------------------------------------+
| Search the Quality Bicycle Products Catalog |
| and order on line: |
| http://sheldonbrown.com/quality |
+-------------------------------------------------+
Harris Cyclery, West Newton, Massachusetts
Phone 617-244-9772 FAX 617-244-1041
http://harriscyclery.com
Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com