The first conduit erected in the City of London (Westcheap now Cheapside) was commenced in the year 1235 but was not completed till 50 years afterwards (1285). The Citizens, who had to fetch their water from the Thames often met with opposition from those who resided in the lanes leading down to the river who monopolized the right of procuring a water supply by stopping and imposing a duty upon others who sought to obtain it. This state of things as might be expected became unbearable and in 1342 an inquisition was made and persons were sworn to inquire into the stoppages and annoyances complained of in the several Wards. In the fifteenth century the authorities of the City had erected New Conduits and had laid down leaden pipes. "In 1439 the Abbot of Westminster granted to Robert Large, the Lord Mayor, and the Citizens of London, and their successors, one head of water containing twenty-six perches in length and one in breadth, together with all the springs in the Manor of Paddington for an annual payment of two peppercorns." In the sixteenth century owing to the increased population and the drying up of the springs other means of supply were obtained in the neighbourhoods of Hampstead Heath, Hackney, and Muswell Hill. An Act of Parliament applied for by the Corporation was passed in 1544 for the purpose of obtaining from these springs an increased supply for the North Western portions of the City. The scheme however was not carried out until the year 1590 when another important source of supply had been procured. In 1568 a conduit was constructed at Dowgate, for the purpose of obtaining water from the Thames. "In 1580 Peter Morice, an ingenious Dutchman brought his scheme for raising the Thames Water high enough to supply the upper parts of the City, and in order to show its feasibility he threw a jet of water over the steeple of St. Magnus Church, a lease of 500 years of the Thames Water, and the places where his mills stood, and of one of the arches of London Bridge was granted to Morice, and the Water Works founded by him remained until the beginning of the present century." About the same time that Morice propounded his scheme for utilizing the Water of the Thames, Stow informs us that a man of the name of Russel proposed to bring water into London from Isleworth. In 1591 an Italian named Frederick Genebelli said that he could cleanse the filthy ditches about the city such as the Fleet River, Hounsditch, etc., and bring a plentiful supply of pure, wholesome water to the City through them, but his offer does not appear to have been accepted.