HAND-BOOK OF WASHINGTON. 47 and a great number of war trophies from the battle fields of the Revolution, of the last war and of Mexico. The Navy Department building lies directly west of the President’s House, and in the rear of the War Department. It has five Bureaus, exclusive of the Secretary’s office, viz :—Bureau of Navy Yards and Docks, Bureau of Construc tion, Equipment and Repair; Bureau of Pro visions and Clothing, Bureau of Ordnance and Hydrography, and Bureau of Medicine and Sur gery. Besides the Secretary, the persons em ployed in them, are forty-two clerks, and seven messengers. Scattered throughout this depart ment are to be seen authentic portraits of many of our naval heroes, also a collection of medals struck to their honor at different times, together with a large collection of national flags and other trophies which have fallen from time to time into the possession of our commodores. The Department of the Interior, or Home Department is the most extensive connected with the Government. The building which it occupies is one of the most extensive and most interesting in the Metropolis. A portion of it is occupied by the Patent office, and also by the museum of the National Institute. The titles of the Bureaus