Show ILOW LOW GRADE SOUTH AFRICAN ORES Bradstreets Bradstreet's South African correspondent tells of ofa a n movement on hand that will possibly double and quadruple the yield of gold in South Africa It seems that what has been worked has been an au inner reef eef while the great reef has been heen untouched because it t was so low grade In view of the lessened cost of production and reduction some experiments in the Robinson mine indicate that the whole reef will win eventually eventually even even- be worked It has been decided to resample and ind finally to operate in tho the main reef in that mine nune It t lies so close to the reef that has hns been worked or 01 oras oris as is they call it down there the main reef leader that hat connections with the thc great grent reef arc are convenient and it can be bc mined at a merel merely trifling expense an and now the owners owners owners' are jubilant because if this can be benade made nade a success and nd it probably will it will mean that many millions of tons of ore are arc practically exposed exposed ex ex- posed and can cnn be mined at trifling cost The recoverable recoverable erable yield is one pound four pence and by increasing increasing ing ug the crushing capacity of the Robinson plant from tons tons' to tons per pcr month it is hoped to reduce the working cost which is now thirteen shillings shillings shill- shill ings per ton to twelve shillings It Tt is estimated that the he tonnage of the thc main reef at present exposed will supply the total plant for six years jears at a profit of approximately ap ap- proximately pounds annually It seems they about such work pork the in are doing as they arc are doing Pioche and which we will hear hor e of by and by |