At the same time, during the progress of the excavation another interesting discovery was made, namely, the arched opening of a sewer, 3-1/2 feet wide and 4 feet high, by the side of the entrance to the gallery on the east. It was choked up with dirt, but appeared to come from the north, and ran along the east side of the vault of the gallery as far as the middle of the Via Dolorosa, where it turned to the east. Afterwards upon making further examinations I discovered that it bent again towards the south, opposite to S. Ann's church, and came out on the north side of the Pool of Bethesda. I followed it down for 112 feet from the entrance, and found that after 22 feet the vaulting gave place to a covering of large slabs. The floor rested upon made ground, and was also formed of large slabs, strongly cemented together. I was unable to continue my expedition by reason of the filth it contained, in which I had a disgusting bath through a fall, caused by a sudden change of level in the downward course of the sewer: so to make sure of its direction, by the permission of the Pasha, I excavated in the middle of the Via Dolorosa, opposite to the projecting north-east angle of the barrack, and over against the tower commonly called the Antonia; and so verified what I have already stated, and ascertained with greater certainty that it rested upon made ground; another proof of the existence of a valley in this part of the city. The sewer was made centuries after the first construction of the gallery.