316 THE FEDERATIONS AND THE UNION [PART Iv 
(xxix) External affairs? ; 
(xxx) The relations of the Commonwealth with the islands 
of the Pacific ; 
(xxxi) The acquisition of property on just terms from any 
state or person for any purpose in respect of which the 
Parliament has power to make laws ; [The law on the 
subject is laid down in the Lands Acquisition Act, 1906.] 
xxxii) The control of railways with respect to transport for 
the naval and military purposes of the Commonwealth ; 
‘xxxiii) The acquisition, with the consent of a state, of 
any railways of the state on terms arranged between 
the Commonwealth and the state ; [This power, with the 
next, is exercised by Act No. 25 of 1910 regarding the 
transfer of the Northern Territory.) 
(xxxiv) Railway construction and extension in any state 
with the consent of that state ; 
(xxxv) Conciliation and arbitration for the prevention and 
settlement of industrial disputes extending beyond the 
limits of any one state ; [This power has been exercised 
in the Conciliation and Arbitration Act 1904, as amended 
in 1909 (No. 28) and 1910 (No. 7).] 
‘xxxvi) Matters in respect of which this Constitution 
makes provision until the Parliament otherwise provides ; 
'xxxvii) Mattersreferred to the Parliament of the Common- 
wealth by the Parliament or Parliaments of any state 
or states, but so that the law shall extend only to states 
by whose Parliaments the matter is referred. or which 
afterwards adopt the law 2; 
xxxviil) The exercise within the Commonwealth, at the 
request or with the concurrence of the Parliaments of all 
the states directly concerned, of any power which can at 
the establishment of this Constitution be exercised only 
by the Parliament of the United Kingdom. or by the 
Federal Council of Australasia 2; 
fxxxix) Matters incidental to the execution of any power 
vested by this Constitution in the Parliament or in either 
House thereof, or in the Government of the Common- 
wealth, or in the Federal Judicature, or in any depart- 
ment or officer of the Commonwealth. 
t See Extradition Act, 1903 ; High Commissioner Act, 1905-9. Harrison 
Moore, op. cit., p. 461, thinks treaties fall under this head: cf. also, 
McKelvey v. Meagher, 4 C. L. R. 265, at p. 278. 
! On this head no legislation has yet been passed. xxxviii is not of course 
an authority to alter Imperial Acts: see Harrison Moore, p. 487 ; Quick 
and Garran, pp. 650. 651,