It is part of the duty of the head of a War Department establishment to give careful attention to the welfare of the civilian employés under his control, and local machinery exists for discussion between him and the employés'representatives of any aspect of their welfare which may arise. Welfare officers exist at certain of the larger establishments, and liaison is maintained with the Home Office with regard to the provisions of the Factories Acts. Hours of work vary as between the different establishments and as between classes of workers, but heads of establishments are constantly urged to restrict overtime to the minimum necessary.