paragraph 206 in volume 2, chapter 12, The Compulsory Jurisdiction (Optional Clause)
Although - leaving aside the special circumstances of the forum prorogatum - the temporal element of the jurisdiction ratione per sonae will normally be satisfied if the proceedings are instituted during the currency of the title of jurisdiction, this does not exhaust the matter. Circumstances can be conceived in which the title of jurisdiction itself, as distinct from the general law governing the jurisdiction of the Court, w…