§ 28. Mr. E. Smith
asked the Secretary for Mines whether he has sufficient evidence to show that the use of sheathed explosives in mines where fire-damp may occur tends to eliminate ignition; arid is it proposed to take any action?
§ Captain Crookshank
Yes, Sir, I have good reason to believe that, m mines where there is danger from fire-damp, sheathed explosives, which are now extensively used, contribute towards safety in shot-firing. As regards the second part of the question, I will consider the possibility and advisability of a general measure of compulsion to the use of sheathed explosives as soon as certain outstanding technical problems have been solved. Meanwhile, I am glad to say rapid progress is being made in their adoption on a voluntary basis.