What is the price of summer and of winter squash? How much of each kind of squash is required to serve 6 persons?
LESSON IV
COAL RANGES [Footnote 7: NOTE TO THE TEACHER.—The principles of building a coal fire and of regulating dampers may be applied to furnaces and heating stoves as well as to kitchen ranges. In case there are no cooking or heating stoves or furnaces in which coal is burned in the homes of the pupils, this lesson may be omitted]—CORN DISHES
EXAMINATION OF A COAL RANGE.—Remove the lids from the coal range. Note the location of the fire box. What is its purpose? How is the floor of the fire box constructed? Where is the check damper? What is its purpose? Where is the ash pan? Where is the front damper? What is its purpose? Note the place where the stovepipe joins the range. What is the purpose of the stovepipe? Note the damper in the stovepipe. What is its purpose? Note the location of the oven. By what is the oven surrounded? Find the oven damper. Open it. In what direction do the hot gases pass out when the oven damper is open? What part of the range is heated when the oven damper is open?
An open damper permits a direct draft to pass through the range (see Figure 10).
Close the oven damper. Trace the direction of the hot gases when the damper is closed. What parts of the range are heated when the oven damper is closed?
A closed oven damper permits an indirect draft to pass through the range (see Figure 11).
How should the front, oven, check, and chimney dampers be arranged when the fire is kindled?
PRODUCTS OF COMBUSTION.—What is found deposited on the inside of the stovepipe of a coal range? To what is the upper end of the stovepipe joined? What does one often see coming from the top of a chimney?
[Illustration: FIGURE 10.—COAL RANGE SHOWING COURSE OF DIRECT DRAFT.]