The body to be reduced to its elements is placed in the chamber A (fig. 1), which is iron-cased and lined inside with a substance able to resist the highest temperature. Figs. 1 and 2 represent the consuming arrangement, which may form a portion of the chapel itself. Figs. 3 and 4 show the gas-producer, where the gaseous fuel is produced, and this may be situated at some distance from the building where the cremation is performed. These gas-producers are not only separate from the cinerator, where the heat is required, but may be multiplied or extended, so as to supply any number of cinerators, and so separately reduce a plurality of bodies. At the back of the heating chamber A are placed four firebrick-celled regenerative chambers for gas and air, seen in section at fig. 2, and these work in pairs. The gas carried from the gas-producer is directed into the gas regenerator, and the entering air into the air regenerator, and in these regenerators both gas and air are heated, attaining a temperature equal to a white heat before they reach the chamber A in which the body is laid. The heated air, after passing upwards through the regenerator, enters the consuming chamber at B, and the heated gas enters it at C. They thus enter the chamber separately, and with a sufficient velocity to impinge against the door of the chamber; but when they meet at the point D in the chamber, the gas and air mingle and add to the carried heat that due to the mutual chemical action. The result is a devouring flame. One pair of regenerators are always employed in conducting the heated air and gas into the chamber A, whilst the other pair are employed in carrying away the combined gases or expended fuel to the chimney. This expended fuel is nevertheless an immensely hot flame, and on its way to the chimney it proceeds downwards through one pair of the regenerators, the upper portion of which it heats intensely. Nearly the whole of the heat of the expended fuel is left in the regenerators, and the smokeless gases which enter the chimney to be cast into the air rarely exceed 300° Fahr. By means of valves the regenerators and air-ways which were carrying off the expended fuel, can be instantly used for carrying air and gas into the reducing chamber, and the heat left in them consequently utilised. Not only is a saving of 50 per cent. in fuel thus effected, but the noxious gases from the body would be entirely consumed in their passage down through the regenerators.