consequence of the escape of the fire. This prima facie liability
might be answered by more than one ground of excuse or exception.
The special responsibility arising from the use of fire has come to
be regarded as no more than an application of a wider general rule
governing the liability of occupiers of property and, perhaps, others
who introduce an agency from which harm may reasonably be
expected unless an effective control of it is maintained. The grounds
of excuse or exception have arisen in the development of this general
tule rather than in connection with the ancient strict liability for
the escape of fire. Their precise nature and limits appear not yet
to be well understood. In the present case, we are concerned with
one only of these grounds. The fire, which travelled from the
defendant's land to the plaintiff's, was lit by the defendant for the
purpose of burning off stubble, a thing beneficial to the land which
many farmers do. The use of fire for such a purpose is said by the
defendant to be a recognized incident of the proper enjoyment of
the land which, he claims, falls outside the application of the prima
facie rule of absolute liability. The question whether this claim is
well founded is that upon which the decision of the case must turn
unless the common law has been superseded by statute. But, on
behalf of the defendant, it is contended that in fact statute has
abrogated or modified the common law rule in New South Wales.
We do not think that this contention is correct. Sec. 86 of the
Fires Prevention (Metropolis) Act 1774 (14 Geo. III. c. 78) was, we
think, part of the law which, under 9 Geo. IV. c. 83, was originally
in force in New South Wales. Its provisions, notwithstanding that
the statute in which it occurs related to London, have been held
of general application (Richards v. Easto (1)). It soon ceased,
however, to be the formal expression of the law in New South Wales.
Its provisions were transcribed in sec. 74 of the local statute of
_ 8 William IV. No. 6, called the Sydney Buildings Act 1837. This
- section should, in our opinion, also be construed as of general applica-
_ tion. The repetition of the section by the colonial legislation
_ operated as an implied repeal of the British enactment so far as it
applied to New South Wales. But, in its turn, the statute of 1837
was repealed. The repeal was effected by the City of Sydney