The Conquest of Nature, p. 4--Man's use of Nature's gifts, p. 6--Man the "tool-making animal," p. 7--Science and Civilization, p. 8--Clothing and artificially heated dwellings of primitive man, p. 10--Early domestication of animals, p. 11--Early development to the time of gunpowder, p. 12--The coming of steam and electricity, p. 15--Mechanical aids to the agriculturist, p. 19--The development of scientific agriculture, p. 20--Difficulties of the early manufacturer, p. 21--The development of modern manufacturing, p. 24--The relation of work to human development, p. 25--The decline of drudgery and the new era of labor-saving devices, p. 27. Primitive man's use of the lever, p. 29--The use of …
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