I've really been overwhelmed by the number of responses to my query. I began responding to each, but I now find I just haven't sufficient time. Hence this posting. If you've not received email from me, it's not that I don't care, it's that I've run out of steam. Incidentally, there were two comments 'against' my quotations/explications and several dozen in favour, including two Aussies. Thank you all, again.