The Garden Under Glass

10 THE GARDEN UNDER GLASS shading is decided on a cheap and efficient one can be made with lime and skim milk or sour milk. Where canvas shadings are used they must be entirely removed during tiie winter months. As to heating, I would advise four rows of 4-inch piping to be taken round the house beneath the side staging. There the heat could be regulated by flow and return valves placed just outside the house. An open air pipe or air tap should be affixed to the pipes at their highest point and the pipes should be locked together by expansion joints. The pipes should be affixed to a small sectional boiler such as the White Rose or Robin Hood. Tlie pipes should not be painted, but for appearance may be covered with lampblack. The water supply for the greenhouse may largely be obtained from the roof if a large tank be pro vided. I know from experience how very economical it is to have a large tank beneath the central staging. If this be 4 feet deep and be practically as long and as wide as the central staging, water can be dipped up wherever watering is being done and there is no waste of time in running backward and forward. By this means also soft water only can be used and it is surprising what a large difference this makes in the welfare of the plants, for hard water does not make for healthy growth, nor (if syringing is done with it) for good appearance. Flooring and Stagings Among the many methods of flooring, such as cement, gravel, bricks, flagstones, asphalt, mosaic, boards, iron gratings or wooden trellising, I like none better tlian the last. A glance at the diagrams appended will show how they are made. Whether the wood run across the house,