This open access book charts how South Africa s gold mines have systematically suppressed evidence of hazardous work practices and the risks associated with mining.For most of the twentieth century, South Africa was the world s largest producer of gold. Although the country enjoyed a reputation for leading the world in occupational health legislation, the mining companies developed a system of medical surveillance and workers  compensation which compromised the health of black gold miners, facilitated the spread of tuberculosis, and ravaged the communities and economies of labour-sending states. The culmination of two decades of meticulous archival research, this book exposes the making, contesting, and unravelling of the companies  capacity to shape   and corrupt   medical knowledge.<div> </div>