are formed when fuels burn. Such materials are called _products of
combustion_.

FIRE BUILDING IN A COAL RANGE.--It is necessary to have the fire box, ash
pan, and other parts of the stove clean before building a fire. After
cleaning, place a generous layer of loosely crumpled paper over the bottom
of the fire box, then about four layers of kindling wood, placed so that
there are air passages between the pieces, and on top of the wood put two
shovelfuls of coal. Regulate the dampers for a direct draft, replace the
stove-lids, and brush the surface of the stove.

[Illustration: FIGURE 11.--COAL RANGE SHOWING COURSE OF INDIRECT DRAFT.]

Before lighting the fuels, polish the range in the following manner: To
the nickel of the stove apply whiting and ammonia or any satisfactory
metal cleanser.

To the iron of the stove apply oil rather than "blacking." Light paraffin
oil may be used for this purpose. Apply the oil with cotton waste, or a
soft cloth. (Care should be taken not to apply an excess of oil.) Polish
with soft cotton or woolen cloth. One should remember, however, that oil
must be used with caution. _It should never be applied to a stove
containing burning fuels._ If the stove cloth, saturated with oil, is
not destroyed after using, it is well to keep it in a covered tin can or
stone jar. After polishing the stove, light the fuels. When the wood is
reduced to glowing embers and the coal is burning, add more coal. If this
burns well, change the dampers to make an indirect draft.

GREEN CORN In selecting corn for cooking, choose those ears that are
filled with well-developed kernels, from which milky juice flows when