In 1818, a Parliamentary Select Committee had recommended that provision be made for carrying infectious patients in London "which would prevent the use of coaches or sedan chairs" but nothing was done. In 1866, a Hospital Carriage Fund provided six carriages to hospitals in the metropolitan area, for the use of patients suffering from smallpox or other infectious diseases, provided that they pay for the hire of the horses. The first permanent ambulance service in London was established by the Metropolitan Asylums Board (MAB) in 1879, when a new Poor Law Act empowered them "to provide and maintain carriages suitable for the conveyance of persons suffering from any infectious disorder". The first became operational at The South Eastern Fever Hospital, Deptford, in October 1883. In all, six hospitals operated horse-drawn "land ambulances", putting almost the whole of London within of one of them. Each ambulance station included accommodation for a married superintendent and around 20 drivers, horse keepers and attendants, nurses, laundry staff and domestic cleaners. A fleet of four paddle steamer "river ambulances" transported smallpox patients along the River Thames to Deptford, where they could be quarantined on hospital ships, departing from three special wharves at Rotherhithe, Blackwall and Fulham. At Deptford, in order to transfer patients between the hospitals at Joyce Green and Long Reach near Gravesend, a horse-drawn ambulance tramway was constructed in 1897 and extended in 1904. In 1902, the MAB introduced a steam driven ambulance and in 1904, their first motor ambulance. The last horse-drawn ambulances were used on 14 September 1912.