Author:Van der Merwe, CCDate:1945This is a report on samples taken from the No. seam at the Schoongezicht colliery, Witbank district. For the purpose of further and more detailed investigation, samples based on the proximate analyses were made up.Read more
Author:Van der Merwe, CCDate:1945This report deals with the characteristics of the coal as revealed by both these drilling programmes, although boreholes No. 1/41, 2/41 and 3/41 were excluded from the composite samples that were made up.Read more