is within the scope of the powers conferred as to subject matter,
it is reasonable beyond all question in the sense in which
that term is applied to by-laws and regulations. In this connec-
tion I refer to the case of Institute of Patent Agents v. Lock-
wood (1). That was a case involving the construction of the
Patents, Designs and Trade Marks Acts of 1883 and 1888, under
which the Board of Trade had a general power to make rules for
regulating the practice of registration, and the general rules when
made were to be of the same effect as if they were contained in
the Act. The rules were to be laid before both Houses of Parlia-
ment, as under this Act, and if either House within a certain time
resolved that any of them ought to be annulled, they were from
that time to be of no effect. By the Act of 1888 it was provided
that no person should describe himself as a patent agent without
registration, under a penalty. A person was prosecuted for
describing himself as a patent agent, against the prohibition. He
claimed to have been practising asa patent agent before the
passing of the Act and therefore entitled to registration, and he
alleged that he was so entitled without fee and for ever. That
claim was not sustained, and it was held that certain rules made
by the Board of Trade known as the " Register of Patent Agents
Rules 1889," which had been laid before Parliament and to which
no objection had there been taken, and which provided, amongst
other things, for the payment of an entrance fee, and an annual fee
by all patent agents on the register, and for erasure from the regis-
ter of the name of any person whose annual fee was not paid, were
intra vires, and that, so long as such rules remained in force, it
was not competent to question their authority, and, Lord Morris
dissenting, that the Court could not interfere with their enforce-
ment. And here, although there is so little similarity between
the constitution of the Board of Trade and that of the Sydney
Harbour Trust, it may be argued with great reason that it is not
competent to question the authority of any rule made under the
powers given to the latter body by the Act. But be that as it
may, the by-law as we construe it does not come within the cate-
gory mentioned by Lord Morris, in dissenting, as objectionable,
: (1) (1894) A.C., 347,