I have already drawn attention to the waste of local materials in connection with our manufacture of buildings, our concentration of markets, and our standardization of styles. It is plain that our architects would not have to worry so painfully about the latest fashion-page of architectural tricks, if they had the opportunity to work more consistently with the materials at hand, using brick where clay was plentiful, stone where that was of good quality, and cement where concrete adapted itself to local needs--as it does so well near the seashore, and, for a different reason, in the south. Wood, one of our most important materials for both exterior and interior, has suffered by just the opposite of neglect: so completely have our Appalachian forests been mined, and so expensive are the freight charges for the long haul from the Pacific coast, that good housing in the east depends to no little extent upon our ability to recover continuous local supplies of timber throughout the Appalachian region. (It is characteristic of our mechanical and metropolitan civilization that one of the great sources of timber waste is the metropolitan newspaper: and one of the remoter blessings of a sounder regional development is that it would, perhaps, remove the hourly itch for the advertising sheet, and by the same token would provide large quantities of wood for housing, without calling for the destruction of ten acres of spruce for the Sunday edition alone! I give the reader the privilege of tracing the pleasant ramifications of this notion.) To see the interdependence of city and country, to realize that the growth and concentration of one is associated with the depletion and impoverishment of the other, to appreciate that there is a just and harmonious balance between the two--this capacity we have lacked. Before we can build well on any scale we shall, it seems to me, have to develop an art of regional planning, an art which will relate city and countryside in a new pattern from that which was the blind creation of the industrial and the territorial pioneer. Instead of regarding the countryside as so much grist doomed to go eventually into the metropolitan mill, we must plan to preserve and develop all our natural resources to the limit.