19.—Whenever the F123[appropriate Minister] proposes to make an order under this Act or an application is made to F124[that Minister] for the making of a lease or an order or the granting of a licence under this Act, F124[that Minister] may, if he so thinks fit, cause notice of such proposal or application to be published at such times and in such manner as he thinks proper, and may by such notice give to all persons interested an opportunity of making to F124[that Minister] objections and representations in respect of such order, lease, or licence (as the case may be) and may include in such notice directions as to the time, manner, and place in and at which such objections and representations may be made.