In July, 1781, the son accompanied to St. Petersburgh Mr. Francis Dana, who had been appointed Minister Plenipotentiary to the court of Russia. The original purpose was study, observation, and general improvement, under the guidance of a trusty and accomplished friend. The youth was not, as has been stated, appointed secretary of the Minister at the time they started; but by his readiness and capability he came to be employed by Mr. Dana as interpreter and secretary, difficult and delicate trusts, probably never before confided to a boy of thirteen. In October, 1782, the youth left St. Petersburgh, and paying passing visits to Sweden, Denmark, Hamburg, and Bremen, reached the Hague in April, 1783, and there resumed his studies. Meantime his father, having received assurances that Great Britain was prepared to treat for peace on the basis of independence, had repaired to Paris to open the negotiation. He found that Dr. Franklin and Mr. Jay, two of his colleagues on the same commission, had commenced the business first with informal agents, and afterwards with a commissioner of his majesty, George the Third. The Definitive Treaty was signed September the third, 1783, at which act John Quincy Adams was summoned by his father to be present, and to assume the duties of secretary. In that capacity he made one of the copies of the treaty. The father on this occasion wrote: "Congress are at such grievous expense that I shall have no other secretary but my son. He, however, is a very good one. He writes a good hand very fast, and is steady at his pen and books." In this autumn the two made a trip to London, partly for the health of the elder, which had been seriously impaired by incessant labor, and partly for the benefit of the younger, as it was expected then that both would bid adieu to Europe and embark for America in the ensuing spring. John Adams had the satisfaction of hearing the King announce to the Parliament and people from the throne, that he had concluded a Treaty of Peace with the United States of America. In January, 1784, the father and son proceeded to Holland to negotiate a new loan for the purpose of meeting the interest on the former one. There they remained until the latter part of July, when a letter came communicating the arrival of Mrs. Adams and her daughter in London. John Adams despatched his son to meet them, and wrote to his wife: