Schiedam City Hall

In July 1820 the ‘Dirk Van Heering’ of Schiedam in the Netherlands docked at the port of Leith. The captain Thomas Bowling took his chronometer up to the transit house on the Calton Hill. He was not admitted to the small building. The keeper did not know the rate of the clock or the difference between the mean and apparent time. The clock was also five minutes fast. Captain Bowling took his chronometer to the Albyn Club in Princes Street which had a transit instrument and a nautical almanac. image credit Wikimedia Commons