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 disorderliness that was at its best only picturesque, is at an end. Men spread now, with the whole power of the race to aid them, into every available region of the earth. Their cities are no longer tethered to running water and the proximity of cultivation, their plans are no longer affected by strategic considerations or thoughts of social insecurity. The aeroplane and the nearly costless mobile car have abolished trade routes; a common language and a universal law have abolished a thousand restraining inconveniences, and so an astonishing dispersal of habitations has begun. One may live anywhere. And so it is that our cities now are true social gatherings, each with a character of its own and distinctive interests of its own, and most of them with a common occupation. They lie out in the former deserts, these long wasted sun-baths of the race, they tower amidst eternal snows, they hide in remote islands, and bask on broad lagoons. For a time the whole tendency of mankind was to desert the river valleys in which the race had been cradled for half a million years, but now that the War against Flies has been waged so successfully that this pestilential branch of life is nearly extinct, they are returning thither with a renewed appetite for gardens laced by watercourses, for pleasant living amidst islands and houseboats