Author:Savage, WHDDate:1965During the past eighteen months discussions have been held with the Anthracite Producers Association on the desirability of altering and introducing a second and possibly a third grade.Read more
Author:Streicher, SFDate:1963The FRI was requested by the Manager, Natal Anthracite Colliery, to carry out washability determinations on a sample of 5 mm X 0 fines.Read more