97 (2) of the original English Act. The instruments to which the Act
relates are commonly known as negotiable instruments. They have
also been described as " instruments of commerce " (Nathan v. State
of Louisiana (2) ), " circulating medium " (Byles on Bills, 16th ed.
(1899), p. xiii.), and " circulating credit" (Story, Commentaries on
the Law of Promissory Notes, 5th ed. (1859), p.3). They are contracts
possessing special advantages and privileges, in virtue of which
they perform the functions implied in the above-mentioned descrip-
tions. "The particular conduct or matter" to which the Parlia-
ment of the Commonwealth directed its attention in passing the
Bills of Exchange Act, was, in my opinion, the characteristics or
attributes which distinguished these contracts as a class apart
from other contracts. Viewed as "negotiable instruments" or
"instruments of commerce" or "circulating credit" they fulfil
after a fashion a function of currency, and in that character are
matters of general and national importance. Speaking of the
attributes of negotiability, which in the course of legal development
became attached to a promissory note, Story, in his Commentaries
on the Law of Promissory Notes, 5th ed., at p. 3, writes " yet it is
the latter quality which gives it its principal importance and value
in modern times, and makes it circulating credit, so extensively
useful and so generally resorted to in the commerce of the world."
'The language of Parliament is the guide to its intention. However,
it would probably not be a false assumption, and it is not, in my
opinion, inconsistent with the language of the Act, to say that the
motive of public policy and convenience which led to the enactment
of this Act by the National Legislature was to obtain uniformity
throughout Australia in the rules of law to which these instruments
owe their utility in commerce. In summarizing the characteristics
of these instruments the learned author of Halsbury's Laws of
England, 1st ed., vol. 1, p. 461, writes the following statement
concerning the nature of the original English Act: "The outstanding