IV. _Second Egyptian Room._—The monuments of the Eighteenth Dynasty would here commence. Terminating the vista from the north would be the head of Thothmes III, more advantageously seen than in its present position, where it stands in front of a doorway, and exposed to a cross light. [Sidenote: THIRD EGYPTIAN ROOM.] V. _Third Egyptian Room._—For smaller remains of the same period. The alcoves should be removed, and a door opened on the north side. [Sidenote: FOURTH EGYPTIAN ROOM.] VI. _Fourth Egyptian Room._—To remedy the darkness of this room, an opening should be made in the ceiling, inclosed by a balustrade in the room above (_v._ Plan of Upper Floor), and covered with glass; whilst the roof of this upper room should be lightened, at least in the central compartment, by substituting glass for its present heavy ceiling. The small space thus sacrificed in the floor of the upper room would be a less serious loss than the virtual uselessness of so large an apartment below. With the proposed improvement in the lighting, the Fourth Egyptian Room would be well adapted for the colossal monuments of Amenophis III; without it, the room could hardly serve for any purpose but a passage. [Sidenote: FIFTH EGYPTIAN ROOM.] VII. _Fifth Egyptian Room._—In the middle would be arranged, in two rows, the remaining sculptures of the Eighteenth and part of those of the Nineteenth Dynasty. In the recesses between the pilasters might be fixed wall-cases, which would rather improve than impair the architectural effect of the room, and for which the light is well adapted, the rays from the opposite windows striking sufficiently low to obviate the shadow occasioned by shelves in rooms lighted from above. Such cases would contain small objects from the Egyptian collection now on the Upper Floor. [Sidenote: SIXTH EGYPTIAN ROOM.] VIII. _Sixth Egyptian Room._—This room, originally ill lighted, has been further darkened by the new Reading-Room, erected within a few yards of its windows. If, however, an opening were made in the ceiling (as proposed for Room VI), and if the roof of the room above were somewhat modified, light might be thrown both on the magnificent bust of Rameses II and on the east wall of the room. The middle window in that wall, which furnishes no available light, might then be blocked up; and before it might stand the cast from the head of the colossus at Abousimbul, now placed over a door in the northern vestibule, but which ought, in any re-arrangement, to be united with the other monuments of Rameses II, and which would finely terminate the vista, looking from the west. [Sidenote: SEVENTH EGYPTIAN ROOM.]