I will now briefly indicate the advantages that the waters of Etham must have produced when they supplied Jerusalem. (1) They filled _Birket es-Sultan_, or the lower pool, at the southern end of the Valley of Gihon, then irrigated the gardens and fields in the Valley of Hinnom, and afterwards flowed into the Kidron, augmenting its volume and aiding in sweeping away the sewage from the Temple. I have found at certain places in the Valley of Hinnom remains of ancient walls, which I consider to have belonged to pools formed there to keep the water until it was wanted for the neighbouring fields. (2) When the water arrived at the western extremity of the bridge across the Tyropoeon, a branch conduit, as I believe, carried a portion of it northward to supply the different fountains, which still exist in the valley, and also to aid in filling the Pool of Bethesda; which however was also supplied by the conduit from the northern valley, and by others from the pool outside S. Mary's Gate, which was filled from the ditch on the north-east outside the city. Hence it appears that the lower city was well provided with water. The works which I have hitherto described could still be restored with the greatest ease, if the Government chose to expend £7200 in repairing them in different places, and to organize an effective police to guard the aqueduct from injury by any chance comer; a thing at present impossible, owing to the venality of the officials of the Government, and the barbarism of the Arabs. The former, however, is the more insurmountable evil. In 1860 I proposed a plan to Surraya Pasha for securing the water-supply from Etham, and shewed how the expenditure might be repaid by a rate on Jerusalem and Bethlehem (which is on the course of the conduit, and receives benefit from it); this rate would be a positive gain to the inhabitants of the former place, as it would save them from the capricious and exaggerated demands of those who bring water into the city, when the cisterns have failed in a season of drought. He at once perceived the advantages of my plan, but was unable to carry it into effect, as he could not secure the necessary co-operation. A short time since a European engineer proposed to bring the water from Etham to Jerusalem by cast-iron pipes, which were to start from the Tomb of Rachel, on the Bethlehem road, about four miles from Jerusalem, and bring it up to the summit of the tower, which I call Phasaëlus, in the Castle of David, from which the central valley was to be supplied. I am convinced that this plan is impracticable in Palestine, not only from the great expense, but also because the Government could never consent to turn into water-works a place which would be their chief stronghold in case of an insurrection of the Bedouins or _fellahîn_; besides, the pipes themselves would be eagerly sought after as booty. If it has not been, and is not possible to restore that which now exists, how can anything new be done? Circumstances will alter, and then we may hope that Palestine will advance as Europe is doing; but the good time has not yet come, and still seems to be far distant.