Looking back up this thread, I have had to revise my song "A Wholly Holey Place" which I posted in 2009, re-written the last 2 verses to take account of the fact that, as from 31st May this year, we do now have trams running (and there has been no volcanic eruption yet!). Not been on one yet as there is only one line which doesn't go anywhere near where I want to go!

And a friend, Anne Renshaw has a good song about the no 37 bus, which runs from Penicuik to Edinburgh City Centre. (Not the same no 37 as in the Hamish Imlach song!)

Re Jim Carroll's post above, I think Knox was an anatomist, not an atomist!