Time and motion study has been referred to. I think it is important that a watch should be kept upon the efficiency of factories. Some factories have done a remarkable job. I have been at a Royal Ordnance factory with a manager who had never made guns before, with machinery which never made guns before, in a new building in which guns had never been made before, and with girls who had never made anything before. The manager started from that basis. That factory is now turning out guns of an efficiency which engineers did not believe girls could produce. That is largely because these workers were recruited from girls with secondary school education, who are efficient in themselves and who have acquired a skill which enables them to do jobs in a way that would be a credit to skilled engineers. These things ought to be borne in mind, because what has been accomplished has been a great triumph. I agree with what was said by the hon. Gentleman that what we have accomplished with the help of our educational system and the adaptability of our people can only be described as an industrial miracle.