of Siloam the vertical hewn rock is again plainly seen, and also inside the city, on the west side of the Tyropoeon Valley, and in front of the Mosque _el-Aksa_. I believe therefore that the Wall of David can be traced on the south and east. A careful examination of the western brow of Sion and the configuration of the ground shew that this wall must have followed its present course, and have continued in the same direction as far as the south-west angle. All that I have been able to find at the castle belongs to a much later period, as we shall presently see. North of Sion, on the south side of the Street of David, the ground is covered by houses. I have therefore been unable to examine it, and can only draw inferences; but I am led to think that Millo was on that side for the following reasons.--We have seen that David "built round about from Millo and inward[81];" which must mean that _he began to build from the position of Millo inwards_, i.e. to the south, or round about the city. Now I believe that the quarter of Millo derived its name from the great pool in the neighbourhood, commonly called the Pool of Hezekiah[82]--the original _Millo_ of David. A learned Russian ex-rabbi explained to me that the word _Millo_ generally meant 'made ground,' but that a large reservoir, which receives water from another, is commonly called _Millo_, while this other is called _Mamillah_, and water-carriers, _Malleah_. We can therefore understand that David began to build from Millo, because, as there is not a valley on that side, it was the weakest part of the city. This explanation, as we shall see, suits all the other passages in the Bible in which Millo is mentioned; but it cannot be a place of 'made ground,' because there is none here. This is all that is known about the City of David.