"In exercise of the powers conferred upon me by the Defence (requisition of land) Regulations, made under the Emergency Powers Defence Act 1940, on the 28th day of December AD 1940, I do authorize all persons who shall be engaged by the United States Government or its agents and contractors on the construction for that government of any naval, military or air works at Argentia to do any work on any land or place any thing in, on, or over any land upon the Argentia Peninsula, insofar as it shall be necessary for any such person so to do for the carrying out of any such work of construction including any preliminary work in relation thereto."