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Show . CulNHINit AND SamI'UNIi WotlKsJ. Mr. Rowland's crushing and sampling samp-ling works are new in full running order. The building is about fifty-seven Icct in length by twenty-live in width, and is divided into an engine room and crushing and sampling room, the latter thirty-tiv feet in length, with a small office at the south-west corner. The engine is of twenty-horse power, and drives a large Ilowland crusher, for breaking up the rough ore, andaburr-inill andaburr-inill for reducing the portion required of broken ore into powder, from which the samples are taken. Of copper ore one-tenth is crushed, of lead ore one-tilth, one-tilth, while of silver ore the whole is run through the Ilowland crusher. Alter being brvken in the large crusher the ore is spread ihiuly on the floor, and portions of it ate taken out, fo as to give a fair average; these are run through the burr-mill and when thus reduced to powder it is nl.-o spread on the lloor. Portions of this are likewise like-wise taken, selected with such care as to make the gouuincss of the average beyond question. These samples, placed in four phials for each lot, are then sealed, stamped with Mr. Rowland's seal, one being sent to the nssayer, one kept by Mr. Rowland, one given to the purchaser, and one placed by Mr. Rowland on a shelf in his oilice. When we called yererday he had just finished fin-ished crushing and tajipling some ore from Silveropolis, believed to bo (he richer yet discovered in the Territory, but its value will be fully determined "by the asay of the samples taken from thi wiW era. |