Joseph Bonaparte, who a little before these events had withdrawn from the Council of Five Hundred, was with his brother constantly through these momentous scenes. Immediately after the establishment of the new government he was appointed a member of the legislative body, and soon after of the Council of State. Joseph had become a very wealthy man, having acquired a large fortune by his marriage. He owned a very beautiful estate at Mortfontaine, but a few leagues from Paris. Both Joseph and his wife were extremely fond of the quiet, domestic pleasures of rural life. Neither of them had any taste for the excitement and the splendors of state. But France, in her condition of peril, assailed by the allied despotism of Europe without, and agitated by conspiracies within, demanded the energies of every patriotic arm. Joseph was thus constrained to sacrifice his inclinations to his sense of duty. He rendered his brother invaluable assistance by the energy and the conciliatory manners with which he endeavored to carry out the plans of the First Consul. Lucien Bonaparte, eight years younger than Joseph, accepted the post of Minister of the Interior. Before the overthrow of the Directory mob law had reigned triumphant in Paris. Napoleon, as first consul, immediately took up his residence in the palace of the Tuileries. It was proposed to him that he should close the gates of the garden of the Tuileries, that it might no longer be a place of public resort. Joseph strenuously opposed the measure, and it was renounced. The great object Napoleon aimed at was to ascertain the wishes of the people, that he might be the executor of their will. His only power consisted in having cordially with him the masses of the population. He was untiring in his endeavors to ascertain public sentiment, and endeavored to adopt those measures which should, from their manifest wisdom and justice, secure public approbation. In this service Joseph was invaluable to his brother. He gave brilliant entertainments at his chateau at Mortfontaine; and being a man of remarkably amiable spirit and polished manners, he secured the confidence of all parties, and exerted a very powerful influence in healing the wounds of past strife. At these entertainments Joseph made it his constant object to study the wishes and the opinions of the different classes of society. The Directory had involved the public in serious difficulties with the United States. Napoleon immediately appointed Joseph, with two associates, to adjust all the differences between the two countries. As both parties were disposed to friendly relations, all difficulties were speedily terminated, and a treaty was signed on the 30th of September, 1800, at Joseph's mansion at Mortfontaine.