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64Birds As Pets
Sanitation and diet are the most important items in the care of birds, as in the care of all pets. Droppings should be removed frequently from the cage. This is easy enough for small birds kept in individual...
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58Getting Your Attention
Attention is the attitude or "set" that is the major influence on perception. The importance of attention is shown by the fact that people perceive the world around them in a selective fashion. They do not...
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57History of Windows
Windows played but a minor role in Egyptian houses. They were small and set high in the wall, more for ventilation than for light. However, the hypostyle halls of such large Egyptian temples as Karnak had...
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54Boating Safety
Anyone who skippers a boat should know the Rules of the Road, since they apply to all craft under way. Enacted by the U.S. Congress to prevent collisions on water, they must be followed whenever there is a...
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66Crowd Behavior
Crowd Behavior is characterized by large numbers of people acting together heedless of established social rules and common understandings. Crowds differ dramatically from the organized, persistent groups that are the basis of conventional social...
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64Philosophy of Education
To be sure, opinions have differed about man, society, and knowledge. Is man naturally good or bad? Is he born with certain abilities that can be developed but not changed? Or does the environment in which he grows up determine what kind of man he...
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59Philosophy and Religion
Greek philosophers in Ionia from the 6th century onward speculated on the nature of the universe with an intellectual freedom unrestricted by religious inhibitions. Whereas Hesiod's cosmogony had been cast as myth, the philosophers passed the gods...
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68History of Education
Modern schools, wherever they are found, owe much to the institutions established in the ancient societies of China, India, and Greece. From them have developed present-day systems, most of which retain the...
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62Fish as Pets
Some authorities believe fish to be the most numerous pets in America. Fish owners in the United States have been estimated at between ten and twenty million, and most of these have a half dozen or more pets. No kind of pet varies more from one...
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63Tropical Fishes
Tropical fish are any of a large number of small freshwater fishes native to tropical regions. Many tropical fishes are colorful and attractive, and keeping tropical fishes is among the most popular hobbies....
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