What then is the authority which can determine what purposes
are purposes of the Commonwealth ? As the appropriation is to be
made by law (s. 83), the natural answer is - the authority which
makes Commonwealth laws, that is, the Commonwealth Parliament,
not the executive authority which administers laws when made,
nor the judicial authority which interprets and applies the laws.
Thus, in my opinion, the Commonwealth Parliament has a general,
and not a limited, power of appropriation of public moneys. It is
general in the sense that it is for the Parliament to determine whether
or not a particular purpose shall be adopted as a purpose of the
Commonwealth. I take as illustrations some past appropriations
for purposes in relation to which the Parliament has approved the
expenditure of moneys but where, when the purposes are considered
in themselves, there is no power to legislate with respect to the
matters to which the expenditure relates. In some cases there is
only an appropriation of money for the purpose stated, in other cases
there are statutes containing detailed provisions for the establishment
of organizations for the purpose of spending the money. I mention
appropriations for Antarctic exploration, medical research, literary
grants and pensions, subscriptions to international organizations,
such as the Agricultural Institute at Rome, public health, assistance
to distressed Australians abroad. Among statutes I mention those
conveniently to be found under the heading of Research and Science
in vol. III. of the Commonwealth Acts 1901-1935 - Institute of
Anatomy, Economic Research, Forestry Bureau, Geo-physical
Survey, Science and Industry, Endowment and Research. (I omit
the Act relating to a Solar Observatory at Canberra, because there
is no doubt that, in relation to the Territories of the Commonwealth,
the Parliament has a quite general power of appropriation for any
purpose whatever.) The application of Commonwealth moneys to
these objects, so far as it merely involves the expenditure of money,
is, in my opinion, authorized by the Constitution. Such expenditures
do not interfere with the rights of the States or of any persons, and
if the Commonwealth Parliament approves the expenditure there is,
in my opinion, full legal justification for the expenditure.