739.—(1) Where by this Act any notice, authority, order, direction, or other communication is required or authorised to be given or made by the Board of Trade, or the Commissioners of Customs, or the governor of a British possession, to any person not being an officer of such Board, or Commissioners, or governor, the same shall be given or made in writing.

(2) Where any notice or document is by this Act required or authorised to be transmitted or sent, the same may be transmitted or sent by post.