- collectionA1138 - James Charles Napoleon Humphreys, Mining papers
- Série organiqueGGG - Associations
- Dossier2430 - The Prospectors Association
- Dossier2431 - Geological Survey of South Africa
- Dossier2432 - Transvaal Mine Managers Association
- Dossier2433 - South African Chemical Institute
- Dossier2434 - Johannesburg Stock Exchange
- Dossier2435 - Technical Education in South Afl-ica
- Dossier2436 - Open Call Exchange
- 13 en plus...