XVI. _Fourth Assyrian or Sennacherib Room._—Here would be the first part of the collection discovered at Koyunjik, the monuments of Sennacherib, now inconveniently divided, and arranged partly in the ‘Koyunjik Gallery,’ and partly in the ‘Assyrian Basement Room.’ These monuments consist, almost entirely, of bas-reliefs, extending as at present arranged, to about three hundred and fifty-one feet (two hundred and eight on the ground floor, and one hundred and forty-three in the basement). In a lofty and wide room, however, such as XVI, an upper row of bas-reliefs might be introduced over many of the smaller slabs, now arranged in a single row only; by this means the sculptures of Sennacherib might all be included on the east, west, and north sides of the room, containing three hundred and seventeen linear feet of wall-space, leaving the south side, or twenty-seven feet, for sculptures of Sardanapalus III, the last monarch of the Assyrian series. In the centre of the room would be glass cases for the numerous tablets, cylinders, and other small objects of this collection, which it is most instructive to exhibit in connection with the sculptures. The only architectural alteration desirable in the room would be to open skylights in the lateral portion of the roof, and to close those in the central, in order to obtain a sharper light, upon the principle so successfully adopted in the present ‘Nimroud Side Gallery.’ [Sidenote: FIFTH ASSYRIAN ROOM.] XVII. _Fifth Assyrian Room._—Here would be the continuation of the monuments of Sardanapalus III, which conclude the Assyrian department; they are at present divided like those of Sennacherib, and part exhibited in the ‘Koyunjik Gallery,’ part in the basement room; altogether they now extend to three hundred and seventy-three feet; but as the greater part might, in Room XVII, be very well arranged in double rows, and some of those in single rows might, without injury, be less widely spread, two hundred and twenty-five feet would suffice for their exhibition; of this space twenty-seven feet would be supplied by Room XVI, and the remainder by XVII. The centre of the room should be appropriated as the preceding, and the lighting similarly modified. [Sidenote: SUMMARY OF ACCOMMODATION FOR ASSYRIAN ANTIQUITIES.]