Ventilation

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Cold air flows up through the pipe (a) and is heated by stove (b) enclosed in sheet iron (c). The smoke stack e warms the air about it in brick flue (f) and thus draws the foul air through the opening (d).

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Plumbing

Source

Davison, Alvin Human Body and Health: An Intermediate Textbook of Essential Physiology, Applied Hygiene, and Practical Sanitation for Schools (New York: American Book Company, 1909) 106

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