Does anyone have a date for the fall of ground that resulted in fatalities at Porkellis Moor as mentioned retrospectively by George Henwood in MJ 1858.
Also does anyone have any information about (or references for) the separating and dressing procedures at East Pool where they were handling multiple types of ore (Cu, Sn, Ar, Tu, Zn, Co etc).
Thanks,
Lynne Mayers
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