¹ It might be interesting to note that the same consideration applies to Russia where linguistic ability is almost equally universal among the intelligent classes. Russia, too, can not be said to have contributed its proportionate share to international law.

² Cf. the dissertation by Lycklama ä Nijholt, a countryman of de Louter’s, entitled “De luchtvaart in het volkenrecht,” Leiden, 1910, an English edition of which the author has recently published as “Air Sovereignty.”