set off from Dunglass Burn in a boat heading east along the coast looking for evidence to support Hutton's theory that rock formations were laid down in an unending cycle over immense periods of time. They found examples of Hutton's Unconformity at several places, particularly an outcrop at Siccar Point sketched by Sir James Hall. As Playfair later recalled, "The mind seemed to grow giddy by looking so far back into the abyss of time". See also List of places in East Lothian List of places in the Scottish Borders References External links Villages in East Lothian