This is a useful and indispensable appendage in confectionary; it is generally constructed like a cupboard in the recess of a wall. The walls or sides should be composed of bricks, or wood lined with tin or sheet iron, to retain the heat, with pieces of wood nailed or fastened in the sides, about four inches asunder, to form a groove for trays or boards to rest on, which is necessary for the drying of lozenges, comfits, bonbons, &c.; there should also be a few strong shifting shelves made either of small bars of round iron or wood, like a grating, on which candy pots or sieves may be placed; the grooves for these should be so constructed as to be capable of inclination so as to drain off the syrup from the candy pots without taking them from the shelves; the door should be made to shut close, with a small door at the top to let out any excess of heat. I have before remarked that it may be heated by means of the modern stoves. At places where the oven is heated with wood, furze, etc., a common iron pot or crock with three legs is filled with the live embers, or it may be filled with burning charcoal and covered with wood ashes, which is replenished night and morning, which gives the heat required.