within which the bordering state had exclusive sovereign jurisdiction. It has also been accepted by the great majority of modern publicists, and the phrase of Bynkershoek, “terræ dominium finitur ubi finitur armorum vis,” has become enshrined in the Law of Nations. Later, and mainly through the action and practice of the United States of America and Great Britain since the end of the eighteenth century, the distance of three miles from shore was more or less formally adopted by most maritime states as equivalent to the range of guns, and as more definitely fixing the limits of their jurisdiction and rights for various purposes, and, in particular, for exclusive fishery. At the time the three-mile limit was introduced, that distance did indeed represent the farthest range of artillery, so that the boundary was the same in each case; and it was sufficient to secure to neutrals that their coasts should not be violated by the operations of belligerents carried on beyond three miles from the shore, while at the same time it furnished a practical measure of the extent of the protection that neutral Powers were bound to afford to the vessels of one belligerent from attacks by the other. But all this is changed. Guns are now able to throw shells to a distance of fifteen miles and more, and the three-mile limit has become quite inadequate to secure the coasts of a neutral from damage from the guns of belligerents engaged in hostilities in the waters near their shores. The argument is not uncommonly used that inasmuch as Great Britain is the predominant maritime Power, it is to her advantage that the territorial waters of all countries should be as narrow as possible. The wider the theatre the better chance for our navy, either in engaging the battle fleets of the enemy or in capturing his shipping. The importance of the change in the conditions referred to above is overlooked. There has been no great maritime war in Europe since the three-mile limit was adopted as the equivalent of the range of guns. If and when another maritime war unfortunately breaks out, it would be absurd to suppose that the neutral Powers within the sphere of possible operations would be content with a three-mile limit to safeguard the security of their coasts. As provided for in the rules drawn up by the Institute of International Law, their duty would be to prohibit all hostilities within such distance of their coasts as would render them secure, and this in turn would involve the immunity from capture within the same space of the merchant vessels of one of the belligerents by the vessels of the other. And thus if this country were engaged in a great maritime war, such as occurred a century or so ago, a very considerable belt of sea on neutral coasts would be closed to the operations of the fleet, and the conditions of naval warfare would be profoundly changed.