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But then, again, it is becoming plain to many experts in mining that, in working downwards from the surface itself, the future of their industry offers a wide field for the extension of the open-cut system.
While the system of close mining will hold its own in a very large number of localities, still there are other places where the increasing cheapness of power for working an open-cut and the coincident increase in the scarcity and cost of timber for supporting the ground, will gradually shift the balance of advantage on to the side of the open method.
Pioneers, smaller men, in different turbans, were already smashing down our barricades, and clearing a road, and from the west, the Palace side, a tremendous rifle and machine-gun fire was dusting endlessly. I rushed into the British Legation through the canal open-cut, and here they were, piles and piles of Indian troops, standing and lying about and waving and talking.
From the unwatered drive or tunnel downwards, the method of working as just described may be characterised as an underground application of the "open-cut system". No elaborate honeycombing of the country below the water-level will be economically possible as it is when working in dry rock.
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