square yards in an imperial acre. same as four roods. most yards I've seen are rectangular. anonanon <div class="gmail_quote">On Feb 5, 2008 3:13 PM, David Boyce <<a href="mailto:David@piano.plus.com">David@piano.plus.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">"Yeah, but if you want REALLY tight precision, go for thousandths of a millimeter!" Reminds me of the joiner who went with his engineer friend to the engineers' convention.  When it was finished and his friend asked what he thought, he said "Huh, all that talk of tolerances, of give and take so many thousandths!  You're LUCKY!  We've got to get it RIGHT!" Does no-one know, then, what in imperial meaurements there are 4840 of? Best regards, David. </blockquote> </div>