Commodore Morris, the senior captain in the Navy now in the city, to have the direction of the naval arrangements. The marshal of the District to have the direction of the civic procession, assisted by the mayors of Washington, Georgetown, and Alexandria, the clerk of the Supreme Court of the United States, and such other citizens as they may see fit to call to their aid. John Quincy Adams, ex-President of the United States, members of Congress now in the city or its neighborhood, all the members of the diplomatic body resident in Washington, and all officers of Government and citizens generally are invited to attend. And it is respectfully recommended to the officers of Government that they wear the usual badge of mourning. DANL. WEBSTER, _Secretary of State_. T. EWING, _Secretary of the Treasury_. JNO. BELL, _Secretary of War_. J.J. CRITTENDEN, _Attorney-General_. FR. GRANGER, _Postmaster-General_. [The Secretary of the Navy was absent from the city.] [From official records in the War Department.] DISTRICT ORDERS. WASHINGTON, _April 5, 1841_. The foregoing notice from the heads of the Executive Departments of the Government informs you what a signal calamity has befallen us in the death of the President of the United States, and the prominent part assigned you in those funeral honors which may bespeak a nation's respect to the memory of a departed patriot and statesman, whose virtue and talents as a citizen and soldier had achieved illustrious services, and whose sudden death has disappointed the expectation of still more important benefits to his country. With a view to carry into effect the views of these high officers of Government in a manner befitting the occasion and honorable to the militia corps of this District, I request the general and field officers, the general staff, and the commandants of companies to assemble at my house to-morrow, Tuesday, April 6, precisely at 10 o'clock, to report the strength and equipment of the several corps of the militia and to receive final instructions for parade and arrangement in the military part of the funeral procession. The commandants of such militia corps from the neighboring States as desire to unite in the procession are respectfully invited to report to me as soon as practicable their intention, with a view to arrange them in due and uniform order as a part of the general military escort. The detail of these arrangements, to which all the military accessories, both of the regulars and militia, are expected to conform, will be published in due time for the information of all.