Richard Griffin wrote in message ...
writes:

I have uploaded the contents of a booklet to web pages at the link below:

http://www.romilepa.pwp.blueyonder.c...tbk/index.html

Thanks, Roger! Lots of very useful & clear information here, as ever.

Richard.
http://www.squarewheels.org.uk/

Thanks from me as well, this stuff is really neat!

Brad