[Sidenote: The science of international law must become international.] 73. It is, finally, a pressing necessity that the science of international law should become international. The science of international law is essentially a branch of the science of law, and it can only thrive if this dependence be not suppressed. Now the science of law must, of necessity, be a national one, even if at the same time it employs the comparative method. On this ground the science of international law, forming always a part of a national science of law, must in this sense be national. When, despite this, I insist that it must become international, what I have before my eyes is merely the requirement that it should not limit itself to the employment of national literature and the jurisprudence of national courts, and that it must make itself acquainted with foreign juristic methods. [Sidenote: Necessary to consult foreign literature on international law.] 74. There is as yet scarcely any systematic reference to foreign literature on international law. Monographs may possibly cite the old editions of some wellnigh obsolete text-books, but, with individual laudable exceptions, there is scarcely any suggestion of the real utilization of foreign literature. This defect is, admittedly, to be attributed not so much to writers themselves as to the fact that foreign literature is for the most part inaccessible to them. There ought to be in every state at least _one_ library which devotes especial attention to international law, and makes, on a well-elaborated plan, a judicious collection of foreign literature on the subject, particularly foreign periodicals. [Sidenote: Necessary to understand foreign juristic methods.]