The growth of the idea of complementary functions in co-ordinate (not superior and inferior) governments has been instanced by many developments in America. There was a time, many now alive can remember the days, when "centralization" and "states rights" were championed by opposing political parties. To-day it is recognized that the successful government of America rests on the proper use of both of these extremes. This is true, whether it refers to national versus state authorities, or state versus municipal authorities. With a strong central authority in America goes to-day greater recognition of the need of a concurrent local control. This local spirit has gone so far in {171} some of the American states that state legislatures have authorized cities to draw up their own charters.[171-1] Moreover, American political experience within the states has adhered in many cases to the theorem that, on such questions as local taxation and the sale of liquor, the smaller subdivisions of the state should decide their own usages. Once it was assumed that the officers of the federal government in America should enlarge as much as possible their spheres of activity, even if they appeared to encroach upon state functions. It is now realized that the states should be encouraged to attend to their own affairs, and thus avoid increasing the burdens of the federal government. President Roosevelt in 1908 unofficially called together the American state governors to discuss "conservation," and since then yearly these state executives have met to discuss questions of state policy. These conferences not only tend to produce greater uniformity of Pan-Angle political action, but tend also to make that action the product of large experience. This Conference of the Governors[171-2] and other non-official bodies, the {172} American Bar Association among them, are now encouraged by public opinion to remedy, in whatever ways seem wise, undesirable discrepancies in the laws of the various states, not by seeking greater authority in the central government, but by agitating in the states themselves. The extent of our progress is shown strikingly by the change in Pan-Angle sentiment between the wars of 1861-1865 and 1899-1902. In South Africa the race was spared any repetition of the humiliating political corruption of the "carpet-bag" era of the American "reconstruction."[172-1] We have learned that whether it is in the United States or South Africa, in Canada[172-2] or in Ireland, white men must be made into self-governing Pan-Angles. Rhodes recognized this when he said even while the war was in progress, ". . . you cannot govern South Africa by trampling on the Dutch."[172-3] The impulses toward local autonomy and those toward a common group unity must be correlated. To favour either at the expense of the other is to court disaster.