Bisbee daily review., 1911-11-05
Warren District Mines

bolts in the timbering and this made it still more dangerous the use of the cage and was an added reason for the discontinuonce of it's use for lowering men. In order to combat inc gas 1t became necessary to enh plOy vigorous methods and an oxy- gen outfit was sent for. In this out fit were number of Draefer helmets and these have been used by the men for several weeks past By using them the men have been en- abled to work without air for half an hour at a time. Mir Mitke. an ex. pert in the use of oxygen and of such an equipment as was brought from Dawson was in charge and under his expert teaching the men mastered the use Of the helmets remarkably quick ly.
 Wearing the Draeger helmets and under the direction of Mir Mitke. the workmen have descended into the shaft and repaired the bolts that were eaten away by the gas so that the cage is once more in operation though not as yet used by men.
 As stated the gas is becoming less dense and no more trouble with the shsft is now anticipated and it sbe- shaft is now anticipated and it is be- lieved that tn two months all trouble will be ended in all the workings.
 Other cases where gas has given trouble in the mines of the district are called to mind by the present instance. It is now about four years ago that there was fire in the Holbrook shaft and following that fire the same conditions existed there that were encountered in the Lowell after the fire there and they are now being ohyiated The con dition of gas in the Holhrook was removed just as it will soon be in the Lowell
 Two years ago there was trouble with gas in the Spray shaft of the Copper Queen company, and the nearby Irish Mag shaft of the Calu- met and Arizona This gas was Of a different kind. ordorless, and what is known as coz. At that time there was considerable trouble from this noxious gas in the Spray and also in the nearby Irish Mag. This gas was in no wise occasiOned by fire. but 1t became so troublesome that certain workings in the Spray were walled up. and the same was done in the Irish Mag. Since then, those work again opened up. and 1t has been found that the gas is no longer there, that these workings are again as safe as they ever were.
 These constitute the chief occas- ions when gas has been a problem to be met in the Warren district mines, and shows, as stated, that the mines of the district have been fortunately free from trouble of that class.
 At the new Dallas shaft of the Copper Queen company the record for a months progress in sinking in the district was again broken last month, but it is not expected that such record will long stand, since it is believed that it will be surpassed in the same shaft in the present month. For most Of October only two shifts were employed in sinking at the Dallas. and for the latter part of the month three were engageS In November there will be three shifts constantly employed and prog ress will be still further accelerated. IL was expected that l60 feet would be the progress for the month of October, but it was 13 feet of added depth that was obtained No esti- mated figure for the present month has been announced, but the state ment is made that it will undoubt- edly be largely in excess of the De- tOber record. In every way. so far as progress is concerned. the Dallas is a record breaking achievement in mining in the Warren district.