The policies of the Thirteen Factories remained. The embassy returned to Britain in 1794 without obtaining any concession from China. However, the mission could be construed as a success because it brought back detailed observations. Sir George Staunton was charged with producing the official account of the expedition after their return. This multi-volume work was taken chiefly from the papers of Lord Macartney and from the papers of Sir Erasmus Gower, who was Commander of the expedition. Gower also left a more personal record through his private letters to Admiral John Elliot (Royal Navy officer) and Captain Sir Henry Martin, 1st Baronet (Comptroller of the Navy). Joseph Banks, the President of the Royal Society, was responsible for selecting and arranging engraving of the illustrations in this official record.