ems to me to be a neglected branch of political science, and one of vital importance. Whether or not it is to be a lasting form, time alone will show. Finally I have tried to display, in this long imperialist conflict, the strife of two rival conceptions of empire: the old, sterile, and ugly conception which thinks of empire as mere domination, ruthlessly pursued for the sole advantage of the master, and which seems to me to be most fully exemplified by Germany; and the nobler conception which regards empire as a trusteeship, and which is to be seen gradually emerging and struggling towards victory over the more brutal view, more clearly and in more varied forms in the story of the British Empire than in perhaps any other part of human history. That is why I have given a perhaps disproportionate attention to the British Empire. The war is determining, among other great issues, which of these conceptions is to dominate the future.
In its first form this book was completed in the autumn of 1916; and it c