In this Act and in every Act passed after the commencement of this Act, the following expressions shall, unless the contrary intention appears, have the meanings hereby respectively assigned to them, namely: -
(1) the expression "Saorstát Eireann" or its equivalent in English "the Irish Free State" when used for the purpose of defining the application of any law or the extent or incidence of any authority, obligation or imposition shall mean the area for the time being within the jurisdiction of the Parliament and Government of Saorstát Eireann:
(2) the expression "Northern Ireland" shall mean such part of Ireland as the powers of the Parliament and Government of Saorstát Eireann shall for the time being not extend to:
(3) the expression "Great Britain" shall mean England, Wales and Scotland:
(4) the expressions "England," "Wales," "Scotland," "Ireland" and "Saorstát Eireann" shall respectively include the islands (other than the Channel Islands and the Isle of Man) adjacent t