The _first_ is the blazer, or the pan in which the cooking is done; this is provided with a long handle.

The _second_ is the hot-water pan, which corresponds to the lower part of the double boiler; this should be provided with handles, and is a very inconvenient dish without them.

The _third_ is the frame upon which the hot-water pan rests, and in which the spirit-lamp is set.
The _last_, but by no means least, part is the lamp; this is provided with a cotton or an asbestos wick.

When the lamp has a cotton wick, the flame is regulated by turning the wick up or down, as in an ordinary lamp.

At present this style of lamp is found only in the more expensive grades of dishes,--silver-plated, and costing from $15 upwards.