This is a good account by Swade if you have IEEE access: The Construction of Charles Babbage's Difference Engine No. 2 http://www.computer.org/csdl/mags/an/20

This is a good account by Swade if you have IEEE access: The Construction of Charles Babbage's Difference Engine No. 2 http://www.computer.org/csdl/mags/an/2005/03/man2005030070-abs.html http://www.computer.org/csdl/mags/an/2005/03/man2005030070-a...