The President of the United States and heads of Departments. Ex-President Adams. The Chief Justice and associate justices of the Supreme Court and district judges of the United States. The President of the Senate _pro tempore_ and Secretary. Senators and officers of the Senate. Foreign ministers and suites. United States and Mexican commissioners for the adjustment of claims under the convention with Mexico. Members of the House of Representatives, and officers. Governors of States and Territories and members of State legislatures. Judges of the circuit and criminal courts of the District of Columbia, with the members of the bar and officers of the courts. The judges of the several States. The Comptrollers of the Treasury, Auditors, Treasurer, Register, Solicitor, and Commissioners of Land Office, Pensions, Indian Affairs, Patents, and Public Buildings. The clerks, etc., of the several Departments, preceded by their respective chief clerks, and all other civil officers of the Government. Officers of the Revolution. Officers and soldiers of the late war who served under the command of the late President. Corporate authorities of Washington. Corporate authorities of Georgetown. Corporate authorities of Alexandria. Such societies and fraternities as may wish to join the procession, to report to the marshal of the District, who will assign them their respective positions. Citizens and strangers. The troops designated to form the escort will assemble in the avenue north of the President's house, and form line precisely at 11 o'clock a.m. on Wednesday, the 7th instant, with its right (Captain Ringgold's troop of light artillery) resting opposite the western gate. The procession will move precisely at 12 o'clock m., when minute guns will be fired by detachments of artillery stationed near St. John's church and the City Hall, and by the Columbian Artillery at the Capitol. At the same hour the bells of the several churches in Washington, Georgetown, and Alexandria will be tolled. At sunrise to-morrow, the 7th instant, a Federal salute will be fired from the military stations in the vicinity of Washington, minute guns between the hours of 12 and 3, and a national salute at the setting of the sun. The usual badge of mourning will be worn on the left arm and on the hilt of the sword. The Adjutant-General of the Army is charged with the military arrangements of the day, aided by the Assistant Adjutants-General on duty at the Headquarters of the Army. The United States marshal of the District has the direction of the civic procession, assisted by the mayors of the cities of the District and the clerk of the Supreme Court of the United States. By order: ROGER JONES, _Adjutant-General United States Army_. CERTIFICATE OF THE DEATH OF PRESIDENT HARRISON. [From official records, written on parchment, in the State Department.] WASHINGTON, _April 4, A.D. 1841_.