Each room should be fifteen to eighteen feet high; the windows exclusively on the east side, and extending from the ceiling to four or five feet from the floor. As the aspect is nearly N.E., the sun could not be injurious, and the glass of the windows, therefore, had better be unground. [Sidenote: BRITISH ROOMS.] 1. _British Rooms_, each twenty-seven feet by twenty-six.—That which adjoins the staircase (and, if necessary, those on each side), should be lighted from the roof, and have wall-cases all round, with a separate case in the centre. The other rooms should have wall-cases on the west side, and shallower cases against the transverse walls. Two long table-cases in each room might extend from the windows to a line with the doorway. [Sidenote: MEDIÆVAL ROOMS.] [Sidenote: SUMMARY OF ACCOMMODATION FOR BRITISH AND MEDIÆVAL.] 2. _Mediæval Rooms_, each twenty-eight feet by twenty-seven, and similarly arranged to the British.—Though the entire superficial area in the British and Mediæval Rooms is only five thousand and seventy-two feet, in lieu of four thousand and forty-six, the amount in the present building, yet the wall-space is four hundred and sixty-six feet, instead of only two hundred and ninety-seven, and the cases, having no windows above, might, if necessary, be made ten feet high, like the present. The gain in table-cases would be much greater. In lieu of six, there would be twelve, each sixteen or eighteen feet long, instead of ten; whilst the central case in the room adjoining the staircase might be at least as capacious as the large separate case in the present British and Mediæval Room. The lighting would throughout be more advantageous for these collections than at present; and the rooms, from the character of the windows, might be bright instead of gloomy. [Sidenote: GEM ROOM.] 3. _Gem Room._—As the contents of this and the succeeding room have more or less intrinsic value, an iron door might be placed at the end of the Mediæval Gallery, to be open only when the public are admitted to the Museum. The Gem Room, twenty-eight feet by twenty-seven, would be fitted like the preceding. The gems would occupy the table-cases, which would accommodate a far larger collection than ours, and would exhibit them in the best possible light for such objects. In the wall-cases might be displayed the gold and silver ornaments, which would have much more space than as now arranged, though in a room only of the same size. [Sidenote: COIN AND MEDAL GALLERY.]