George Routledge, Routledge's Manual of Etiquette
“ There are generally several leaders of the Cotillon, who decide upon the succession of the figures. If there are many couples dancing, one leader attends upon a group of six or eight couples, to ensure that all shall take part. We are aware of no fixed rule for the succession of the figures, which depends upon the caprice of the leaders. A good leader will invent new combinations, or diversify old figures ”
