AWNINGS: are made usually from sail duck canvas and vary in price and durability according to the heaviness of the canvas. Permanent awnings are often of corrugated iron, but the best qualities of canvas ought to last very nearly as long. The practice of whitewashing the awning in order to prevent mildew, is a useless waste of time and money-it does prevent mildew, but the lime in the whitewash eats into the cloth and renders it brittle and rotten. The tendency to forbid fixed roofs or awnings over the public streets is steadily growing, but the grocer will often find smaller awnings over his outside display of fruits and vegetables profitable if not really indispensable.