Section 19
SEC. 19. Heads of bureaus and offices of the national government are authorized to loan or transfer, upon request of the President of the Institute such apparatus, supplies, equipment, and buildings as may be needed by the Institute and to detail employees for duty therein, when in the judgment of the bureau or office such apparatus, supplies, equipment, buildings, or service of such employees can be spared without serious detriment to the public service. Employees so detailed shall perform such duty as is required under such detail, and the time so employed shall be counted as part of their regular official service.