A corridor leads westward from the "East Room," through the centre of the White House, to the conservatories, which are prolonged nearly two hundred feet farther westward. A series of fine apartments, called the Green, Blue and Red Rooms, from the predominant colors in their decorations, are south of this corridor, with their windows opening upon the gardens. These apartments open into each other, and finally into the State Dining Hall on the western side of the building, which is adjoined by a conservatory. North of the corridor the first floor contains the family rooms, and on the second floor are the sleeping-rooms and also the public offices. The Cabinet Room, about in the centre of the building, is a comparatively small apartment, where the Cabinet meetings assemble around a long table. On one side of it, at the head of a broad staircase, are the offices of the secretaries, over the East Room; and on the other side, the President's private apartment, which is called the Library. Here the President sits, with the southern sun streaming through the windows, to give audience to his visitors, who are passed in by the secretaries. One of the desks, which is usually the President's personal work-table, has a history. The British ship "Resolute," years ago, after many hardships in the fruitless search for Sir John Franklin, had to be abandoned in the Arctic seas. Portions of her oaken timbers were taken back to England, and from these, by the Queen's command, the desk was made and presented to President Grant, and it has since been part of the furniture in the Library. An adjacent chamber, wherein the Prince of Wales slept on his only visit to America, and the chamber adjoining, are the two sleeping-rooms which have been usually occupied by the greatest Presidents. The accommodations are so restricted, however, that a movement is afoot for constructing another presidential residence, on higher land in the suburbs, so that the White House may be exclusively used for the executive offices. ELABORATE PUBLIC BUILDINGS.