When a problem really preoccupies us we carry it about with us. And then one day we suddenly hit on the solution, and often find its confirmation turning the next street corner. Thus the proportions of the huge scaffolding in front of the Bon Marché confirmed my theory of the scale that urban buildings ought to embody in the future. It seems clear that buildings should be set back further and further from the street, that the open spaces so created should be made larger and larger ; and that we should build upwards to two or three times the existing height-limit. Were this the case the present height of rooms in ordinary flats, which architectural practice has fixed at 9-12 feet, could be sensibly increased. Future groundplans will postulate fresh architectural conditions which will lead to the adoption of a new worm of height ; probable 18-22 feet.