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Jan 1, 1887

Map

Jan 1, 1952

The only definite information available is for the years 1875, 1878, and 1879 and 1880. The total figures in Table 48 are estimated. [ ]

Jan 1, 1942

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Jan 1, 1942

Jan 1, 1911

Jan 1, 1942

Jan 1, 1935

Jan 1, 1932

Jan 1, 1912

Jan 1, 1902

Jan 1, 1942

Jan 1, 1900

Jan 1, 1942

By Robert Glass Cleland

[PRODUCTION Copper Lead Zinc Silver Gold Year M Pounds M Pounds M Pounds M Ounces Ounce 1882 1883 18841 ,m 2,820 2,750]

Jan 1, 1952

Jan 1, 1947

By W. Spencer

An examination is made of quality standards in castings produced by the South African foundry industry, and some examples are given of the consequences of poor quality to the user. Corrective measures are suggested.

Jan 1, 1981

Jan 1, 1890

Jan 1, 1942

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Jan 1, 1938