How would you proceed to lay out this work so as to have headgear, engines, and drum in true position a#39;I The surface is ordinary loose ground and stiff clay for a depth ... A hydraulic ram is used for raising the cage for double decking at the bottom of a shaft 560 feet deep. ... State the details to be observed in taking samples of coal n a mine for analysis. ... It is found necessary to seal off tvvo goaVcs, one of which contains large volumes of CHa#39; and the other is giving off blackdamp frccly.
|Title||:||Annual Report - New South Wales Department of Mines|
|Author||:||New South Wales. Department of Mines|