part of Africa, and in South America. Further, I had just returned from a continent where I had been responsible for the security and defence of a Land Frontier 5,700 miles in length, certainly the most diversified, the most important, and the most delicately poised in the world; and I had there, as Viceroy, been called upon to organize, and to conduct the proceedings of, as many as five Boundary Commissions.
I was the more tempted to undertake this task because I had never been able to discover, much less to study, its literature. It is a remarkable fact that, although Frontiers are the chief anxiety of nearly every Foreign Office in the civilized world, and are the subject of four out of every five political treaties or conventions that are now concluded, though as a branch of the science of government Frontier policy is of the first practical importance, and has a more profound effect upon the peace or warfare of nations than any other factor, political or economic, there is yet no work or treatise in any language which, so far as I know, affects to treat of the subject as a whole. Modern works on geography realize with increasing seriousness the significance of political geography; and here in this University, so responsive to the spirit of the age, where I rejoice to think that a School of Geography has recently been founded, it is not likely to escape attention. A few pages are sometimes devoted to Frontiers in compilations on International Law, and here and there a Frontier officer relates his experience before learned societies or in the pages of a magazine. But with these exceptions there is a practical void. You may ransack the catalogues of libraries, you may search the indexes of celebrated historical works, you may study the writings