the tour to a travelling circus, comparing the Mozarts to a family of acrobats. The Mozarts left London for the continent on 24 July 1765. Before this, Leopold allowed Wolfgang to be subjected to a scientific examination, conducted by The Hon. Daines Barrington. A report, issued in Philosophical Transactions for the year 1770, confirms the truth of Wolfgang's exceptional capabilities. Practically the last act of the family in London was the gift to the British Museum of the manuscript copy of "God is our refuge". The Netherlands (September 1765 – April 1766) Leopold had been specific in letters to Hagenauer that the family would not visit the Dutch Republic, but would go to Paris and then return home to Salzburg. However, he was persuaded by an envoy of the Princess Carolina of Orange-Nassau, sister of the Prince of Orange, to go instead to The Hague and to present the children to her, as official guests of the court. After the party's landing at Calais there was a month's delay at Lille, as first Wolfgang fell sick with tonsillitis, then Leopold suffered prolonged dizziness attacks. Early in September the family moved on to Ghent, where Wolfgang played on the new organ at the Bernardines chapel; a few days later he played on the cathedral organ at Antwerp. On 11 September the family finally reached The Hague. After arriving in The Hague, Nannerl developed a severe cold and was unable to participate in the initial concerts before the Princess during their first week, nor in a performance before the Prince a few days later. Leopold was sufficiently confident of Nannerl's recovery to announce the appearances of both prodigies at a concert to be given at the hall of the Oude Doelen on 30 September. The notice for this concert gives Wolfgang's age as eight (he was nine), but correctly gives Nannerl's as fourteen. The advertisement concentrates on Wolfgang: "All the overtures will be from the hands of this young composer [...] Music-lovers may confront him with any music at will, and he will play it at sight". It is not certain whether this concert in fact took place—Sadie believes it may have been postponed. If it did happen, Wolfgang appeared alone, for by this time Nannerl's cold had turned into typhoid fever. Her condition grew steadily worse, and on 21 October she was given the last sacrament. A visit from the royal