- FondsA1138 - James Charles Napoleon Humphreys, Mining papers
- SeriesGGG - Associations
- File2430 - The Prospectors Association
- File2431 - Geological Survey of South Africa
- File2432 - Transvaal Mine Managers Association
- File2433 - South African Chemical Institute
- File2434 - Johannesburg Stock Exchange
- File2435 - Technical Education in South Afl-ica
- File2436 - Open Call Exchange
- File2437 - South African Mining Laws
- 12 more...