Here we may conveniently pause; the building is substantially completed, the great keep, the two enclosures, the Inner and Outer Ballium. Subsequent changes are all within these, and we shall have occasion to notice them at later dates, but now that we have seen the fortress completed, and used, partly as a Royal residence, partly as a State Prison, we will survey the whole in detail. And I ask attention to the Plan opposite p. 104, which will make each point clear. I propose, then, first to take a walk round the outside and start from the bottom of Tower Hill by the main entrance, where the visitors are busy buying their tickets of admission. The modern building where they are doing this is the site of the old Lion Tower. Facing us is the Middle Tower, the gateway which leads over the Moat into the fortress itself. But as I am keeping outside I pass this and ascend the hill. To-day the whole of the bank of the Moat on the western and northern side is laid out as a flower garden, and the many seats among the trees are well occupied with loungers, mostly poor, some asleep and some reading the newspaper. The Moat, which is as old as the Tower itself, was deepened by Bishop Longchamp while he held the place for Richard I, and again by Henry III, the water of course being supplied from the Thames, which flowed in at what we call Traitors’ Gate. Its greatest width is about a hundred feet. It is said that bathing in it in the days of the Plantagenets was a capital offence, but some one suggests that this simply means that it was so unsanitary as to be likely to prove fatal. There can be no doubt that the water splashing upon the walls and bastions added greatly to the picturesqueness; you see that in all the old pictures, but the changes of Time put aside its usefulness, and after eight centuries of its ebb and flow, the Duke of Wellington, when he was Constable, had it filled up to its present level and the communication with the river cut off. So now we look down upon a smooth level, on the west side gravelled, a place for recreation, and sometimes also a drying-ground of the Tower laundry. On the other sides, when we get to them, we see great portions laid down for garden ground. On the other side of the Moat is the Outward Wall, built by Henry III. Surveying it from this western side we see first the Byward Tower, which, as a glance at the plan will show, is opposite the Middle Tower, and forms the land entrance into the fortress. On the opposite end of this western side is the “drum bastion,” segment of a circle about 80 feet diameter, called _Legge’s Mount Battery_, probably after George Legge, Earl of Dartmouth, who had charge of it in the seventeenth century.