Manufacture of calcium carbides and electrodes in the transvaal

Mr. President, Gentlemen, — When I promised the South African Institute of Electrical Engineers a paper recounting our difficulties and experiences in connection with carbide and carbon making, I expected to have given this paper at an earlier date than the present. I can assure you, gentlemen, that the only reason was stress of work, and our anxiety to give you the latest information after having overcome all our difficulties.