§ 55. Mr. Kelleyasked the Minister of Power how many remotely-operated long-wall faces were in production on the latest convenient date for which such information is available; and what was the average weekly tonnage being produced on these faces at that time.
§ Dr. BrayTwo coal faces making partial use of these techniques are at present in operation. Average weekly outputs have recently been 2,200 tons and 4,500 tons of saleable coal respectively.