The Principles of International Law
Essay 4, Footnote #05
Convention of disarmament between France and Britain
1787,---this this is a precedent of the measure or stipulation itself;
Armed neutrality code,---this is a precedent of the mode of
bringing about the measure, all may serve to disprove the
impossibility of a general convention among nations;
Treaty forbidding the fortifying of Dunkirk.
PIL, Essay 4 A Plan for an Universal and Perpetual Peace.