228 4 1. The Wall is either the Support of the Roof, or it is the enclosure of privacy: Or it excludes Hostility, one of these Functions it must have: It is either Support or shelter, or defence. Add here the wall for effect of Surface: Aesthetic in In relation to these three functions; a wall is to be building where height does not properly admit of detached considered either as - a supporting vertical pressure, shafts, conf p 14. (2) b. supporting lateral pressure, whether from an oblique roof - or external violence; c as a veil, only; Now if the function be to support Vertical pressure only; the wall is of course but built where the given pressure is Function a; Bearing of Vertical Pressure By general supported with the smallest quantity of naterial. All principle: that the best is that which is done with redundant material is an offence to the eye: least material, and it being evident, etc. Now it is evident or if not evident, mathematically de- monstrable that the more solidly the materials are ar- ranged, the more weight they will bear: and also that the most compact form in which they can be arranged is that of a succession of cylindrical masses. This there- fore is the best possible form in which vertical support can be attained; and every truly noble building that ever was built, or ever will be, consists and mustconsist so far as concerns its vertical pressures, of some modi- fication of i ; It is the Pillar support which has been the source of grace and strength in the buildings of all great nations, from the infancy of the worldtill now and must be, so long as the laws of gravity remain un- changed.
[Version 0.05: May 2008]