All of this is of course a species of socialism in the sense that it is collective control of the conditions of living together. It advocates, however, that the city should take over only those things that are used in common. The trouble with this so-called municipal socialism is that it presupposes a pretty high degree of intelligence on the part of people. Whether or not a municipality shall own and operate its own street railways, electric light and gas plants, is largely a question of the development of the social consciousness and intelligence in that particular community. In some communities such municipal undertakings have been made a success; in others they have failed. But it is evident that with a large mass of people living together the common conditions of living must be subject to intelligent collective control if human life and character are to have a proper environment in which to develop. (6) The last remedy proposed for the evils of the city is the development of the suburbs through rapid transit. This is already being rapidly accomplished in many of our larger cities. The solution of the mechanical problem of rapid transit will probably, in other words, tend greatly to relieve automatically the present congestion which we find in many of our large cities. Probably the best form of such rapid transit is underground electric roads, or subways. Transportation upon these roads must be made cheap enough to enable workingmen to live at a distance from their labor. With the solution of the problem of rapid transit it should be possible to scatter a city's population anywhere within a radius of thirty miles. But it would be a mistake to think that rapid transit alone will solve the problems of city communities. Stringent regulation by law of sanitary and housing conditions and, as has just been said, of all the things used in common, is necessary to put order and healthfulness into that vast household which we call a modern great city.