This is another ingeniously contrived little cooking stove, and is intended to meet many of the wants of a small family, especially in the summer season, when the smallest quantity of artificial heat is desirable. The diagram in the next page is explanatory of its construction and arrangement when applied to roasting and steaming; some of the parts in the drawing are slightly varied from their real positions, for the purpose of elucidation by a single figure, a is the steam boiler, which has a large elliptical opening down the centre for depositing a variety of culinary vessels therein; 6 an aperture for charging the boiler with water; c a stop-cock for drawing off the water as may be required, but placed high in the boiler to admit a draught of air to the grating e, on which the charcoal is burned; - the grating is, strictly speaking, a strong iron plate, perforated all over for the free admission of air through the holes; f is termed the oven pan, which is a cast-iron dish, suspended about half way down the elliptical opening; g a sheet-iron cover; h a pipe conveying the steam from the boiler a to the steamers i and j, which separate in the middle, and allow of one or both being used at a time; each of these steamers may be subdivided into distinct compartments; k, a sliding damper for enlarging or contracting the air passage d, so as to increase or diminish the combustion of the fuel, as may best suit the peculiar culinary process.

When the apparatus is not required for roasting, but for boiling, or making soup or broth, the oven pan is to be removed, and in its place the required vessels (all of which are made to fit) are deposited. In some cases the patentee adopts two half-kettles instead of one. A current of heated air is constantly kept up, entering at the grating at bottom, and passing out at the grating above, where the heat is reverberated against the top and sides of the cover, prior to its escape through a small central aperture in the latter.

Tozer s Patent Calefactor 489