The upper division of the Witwatersrand system in the Virginia and Merrie-Spruit mining areas

Other Authors: “…Willemse, J.…”
Get full text
Get full text

The geology of the country surrounding Loskop Dam, Transvaal

Other Authors: “…Willemse, J.…”
Get full text

The Monazite deposits of the Vanrhynsdorp division, Cape Province

Other Authors: “…Willemse, J.…”
Get full text

Die Plooikompleks van die Sisteem Transvaal Noord van Marble Hall en die meegaande metamorfe en intrusiegesteentes

Other Authors: “…Willemse, J.…”
Get full text

Title not available

Other Authors: “…Willemse, J.…”
Get full text

Contributions to the Minerology of the Olifants River Tin-field with Special Reference to the Tin-bearing Pipes on Stavoren, Transvaal

Other Authors: “…Willemse, J.…”
Get full text

The mineralogy of the Kalahari Manganese-field north of Sishen, Cape Province

Other Authors: “…Willemse, J.…”
Get full text

The mineralogy and petrology of kimberlite and its related inclusions, with special reference to Premier Mine

Other Authors: “…Willemse, J.…”
Get full text

Die verysterde piroklaste en 'n na-Waterbergse graniet, suidoos van die dam, rust der winter

Other Authors: “…Willemse, J.…”
Get full text

Die Rand van die bosveldstollingskompleks, suid van Burgersfort, insluitende sekere perikotiet-liggame en die gemetamorfoseerde serie Pretoria

Other Authors: “…Willemse, J.…”
Get full text

The sulphides in the layered sequence of the Bushveld igneous complex

Other Authors: “…Willemse, J.…”
Get full text