. The sampling and estimation of ore in a mine . - be decided to leave thisstringer in the hanging- wall and narrow up the matter if the stringers are thick or very thin, theyare invariably sampled separately. On some mines, thewaste rock found between the stringers is also sampledand assayed, but it is really only necessary to take occa-sional samples of this waste, as it seldom contains gold inpayable quantity. Let us suppose that there is an unbroken mass of aurif- •«<rN^^^^.

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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectores, bookyear1907