The advance of Sir Arthur Hasilrigg, from the garrison of Portsmouth, toward the city of London and his letter to the Lord Mayor, aldermen, and Commoun Council. Also, the number both of horse and foot; the names of the regiments revolted from the Army; together with the Isle of Wight and most of the castles thereabouts. Likewise, the answer agreed upon by the Lord Mayor, aldermen, and Common Council at Guild-Hall yesterday, and the names of the commissioners, sent to Sir Arthur Hasilrigg, and Vice-Admiral Lawson, to communicate the sense of the city.