The history of rubbish can be scholarship, but the history of scholarship is often rubbish. Hindsight diminishes earlier habits of thought and behaviour, especially when, as with freemasonry, they involve rolled-up trouser legs, coded handshakes and a curious blend of mysticism and matiness. Yet freemasonry was once a radical, even revolutionary, rite — to its adherents a harbinger of egalitarian, middle-class democracy, to its detractors a conspiracy of Jews, satanists and sex addicts.