The water supply of the City was in its early history abundant. There were wells, springs, and streams everywhere. Through the wall of the City flowed the Walbrook, fed by one spring at least within the City. This stream received half-a-dozen affluents before it reached the wall. Outside there were the springs of Clerkenwell, the Holy Well, Sadler’s Well, and others falling into the River of Wells or Fleet River: in the Strand there were small streams flowing down to the Thames from what is now the site of Covent Garden. And within the City there were many wells of pure water: in Broad Street, at Aldgate, at St. Antholin’s Church, at St. Paul’s Churchyard, at the Grey Friars, at Aldersgate, at many private houses; the number of these wells can never be discovered, because the Fire of London choked them, and they were built over and forgotten. When Furnival’s Inn was destroyed quite recently, old wells were found below the foundations. There was also the Thames water, which at certain periods of the ebb tide was tolerably pure, if it was taken some distance from the bank. When the Walbrook became an open sewer, and the Fleet River defiled with every kind of refuse, it was necessary to obtain a supply of water from outside. In the reign of Henry III. (1236) a conduit of stone was erected at Marylebone for the reception of water from the Tyburn. (See p. 24.) There were nine conduits or bosses set up in different parts of the City, but all on the western side of Walbrook. Three of these conduits were in Chepe, one opposite Honey Lane, another where Chepe becomes the Poultry, and a third, the Little Conduit, at the west end of Chepe, just east of the present statue of Sir Robert Peel. Another conduit stood in Snow Hill. It was repaired and restored in 1577 by one Lamb, who connected it with a spring on the site of the drinking fountain before the Foundling Hospital. The City on the east of Walbrook was supplied by wells, especially by a well opposite the future site of the Royal Exchange. The great conduit of Cornhill called the Standard was not set up until 1581. An earlier conduit, however, was that at Aldgate, which brought water from Hackney. The New River water was brought into the New River Head in the year 1613.