In the spring of 1955 the Water Company, extending its drainage system to include Erechtheion Street, a road in the neighbourhood south of the Acropolis running south from the street of Dionysius the Areopagite, uncovered part of the wall and a gate of the ancient city. The Ephoria of Acropolis Antiquities under its then director, Mr. J. Miliades, undertook the excavation of these remains. With the aid of his epimelete, Dr. G. Dontas, the present director of the Acropolis, he cleared the wall and the gate down to bedrock, and extended his investigation to uncover as many building remains and other finds as possible, under a fair amount of pressure from the Water Company, who were in a hurry to begin their own work. The excavation, which took place from March until June 1955, has added considerably to our knowledge of the topography of the area during the classical period; at the same time it uncovered a Dark Age cemetery.