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A life-long friend of Cecil Rhodes, Garner F. Williams (1842–1922) was the first general manager of the De Beers Consolidated Mines, which once produced 95% of the diamond yield of the world. First published in 1902, this work opens with a chapter on notable historical diamonds, and goes on to describe the initial discovery of diamonds in South Africa, the development of mines, the mining methods adopted, the welfare of the miners and a history of the whole diamond-producing region. Williams also includes an appendix, which describes the mechanical workings of winding engines and pumps, and the value of different types of coals, and provides a table listing the yearly yield of the mines since 1888. Nearly 700 pages long, The Diamond Mines of South Africa contains over 500 illustrations and maps.
In 1876 the South Kensington Museum held a major international exhibition of scientific instruments and equipment, both historical and contemporary. Many of the items were retained and eventually formed the basis of important collections now held at the Science Museum, London. This is the 1877 third edition of the exhibition catalogue, which was expanded to include a 'large number of objects' received since the publication of the second edition, and which also included corrections in order to 'afford a complete record of the collection for future reference'. In two volumes and twenty sections comprising over 4,500 entries, the catalogue lists a huge variety of items, ranging from slide rules and telescopes to lighthouse parts and medical equipment. It gives detailed explanations of how they were used, and notes of their ownership and provenance, while the opening pages comprehensively record the contributing individuals and institutions in Britain, Europe and America.