That's the title of French steam design engineer Andre Chapelon's book. It is now available for the first time in an ENGLISH EDITION.
Dave Goodheart has them available and you can get more details at his web site. Click the link below.
I've got my copy already, and it is fascinating reading. If you want to know what really makes a steam locomotive tick, this is the book for you.
Goodheart Productions Web Site
