the Great Hall). The Rand Water Board Supplementary Water Supply (Private) Act was passed by the Union Parliament in June 1914. The measure gave the Board the right to impound annually sufficient of the Vaal River's surplus water to supply the Witwatersrand with 20 million gallons a day. A loan of £1,250,000 was raised for the construction of the barrage below Vereeniging. It was only completed in 1923. In 1926 the Transvaal Provincial Council repealed the Local Government Ordinance of 1912 and passed the new Local Government Ordinance, No. 11 of 1926. The Transvaal Provincial Council adopted a Private Ordinance (No. 15 of 1928) in terms of which the Town of Johannesburg acquired the designation of the City of Johannesburg. The Town Council became known as the City Council of Johannesburg. In 1923 the Parliament of the Union of South Africa passed the Natives (Urban Areas) Act. This Act required local authorities to provide accommodation for Natives (then the polite term for Africans or Blacks) lawfully employed and resident within the area of their jurisdiction. Pursuant to this Act the Johannesburg town council formed a Municipal Native Affairs Department in 1927.It bought a large tract on the farm Klipspruit No. 8 and the first houses in what was to become Orlando Location were built there in the latter half of 1930. 1930 to 1939 In 1935 the Johannesburg City Library eventually opened its doors to the public. The Ansteys Building at the corner of Jeppe and Joubert Streets was designed by Emley and William and completed in 1937. It is recognised as a prime example of Art Deco Architecture, a style synonymous with modernisation, optimism and Americanisation before World War 2. The departmental store, N. Anstey's and Company, occupied the first four floors of the building. The tea terrace was on the fourth floor and was a destination of choice for the ladies of the northern suburbs. The building is 20 storeys high and was, when it was completed, the highest building in the southern hemisphere. The remaining storeys were offices and apartments, some of them occupying an entire floor. The building terminates in a mast designed for docking air ships. In 1939 the Transvaal Provincial Council once again passed a brand new ordinance to control local governments in the Transvaal. It was called the Local Government Ordinance, 1939. 1940 to 1948 In 1940 London asked Pretoria to provide hospitals