But three things must be emphasized (a) The ‘more markedly federal’ nature depends not on the mere fact that the residue is allotted to the units, but on the content of that residue ; it would be absurd, for instance, to consider Weimar Germany markedly federal because the residue was left with the states. (b) The idea of the residuary powers has little significance, as in the federal scheme for India referred to above, where care was taken to enumerate every conceivable power, so that very little was left as the ‘reserve of power’. (c) Under modern economic and social conditions, where an increasing number of problems can be met only by an authority representing the general interest, it seems the wisest policy (if it were possible) to enumerate the powers of the units and leave a large reserve of powers to the Centre.