Q. What is that “stream of heat” called, which flows thus, from one body, to another?
A. Calo’ric. Caloric, therefore, is the matter of heat, which passes from body to body; but Heat is the sensation, of warmth, produced by the influx of Calo’ric.
Q. What are the four principal sources of heat?
A. 1.—The Sun. 2.—Electricity. 3.—Chemical Action: and 4.—Mechanical Action.
Q. What are the principal effects of heat?
A. Expansion, Liquefaction, Vaporization, and Ignition.
CHAPTER I.
Q. What is the principal source of Heat?