Report of the Court of Directors - United Mexican Mining Association

Report of the Court of Directors - United Mexican Mining Association

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1827 edition. Excerpt: ... way from the mine. The buckets then descending to that point only, the bottom of the shaft will be kept dry, and the work will be more conveniently carried on. By draining through this shaft, fre shall also be able to proceed in another work of considerable importance, without embarrassment from the water;--for at the point where the shaft of Santa Rosa is situate, the lode, at a greater depth, is very rich, as is established by the good produce of the works near the plat. The work then, of which I speak, is to sink the shaft till it cuts through the middle and lower bodies of the lode. Now as these bodies of the lode would be cut in a parallel with the very rich point which has been worked on the upper body, and as their goodness is proved by the adjacent works, as that of la Periquera and others, we may assure ourselves, without the chance of mistake, that the result of this investigation would be successful. Two advantages in particular, amongst others, which would result from this plan, deserve attentive consideration. First;--That the upper waters of the mine would be brought down to this point, by which means nofias would he rendered unnecessary, and the water would be raised at less expense, than if allowed to flow to the great shaft. Second;--An opportunity would be afforded of working the other bodies of the lode with convenience, in untouched ground, for a space of more than 200 varas, in a S.E. direction, without having occasion to interfere with the fearful ruins in and near the shaft of San Miguel; and by arranging the new works so as to leave entire the intermediate spaces between the bodies of the lode, as great pillars for support, there will be a clear and safe way through these works, and the enormous expense of working among...show more

Product details

  • Paperback | 32 pages
  • 189 x 246 x 2mm | 77g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236581512
  • 9781236581518