☐ It is so pure and white to look at. ☐ It can be bought in pint or quart bottles. 14. What kind of light is best for a reading table? ☐ A tallow candle. ☐ A mercury vapour lamp. ☐ A coal oil lantern. ☐ An incandescent electric bulb. 15. What is the purpose of advertising food products? ☐ To make people hungry. ☐ To decorate street cars and magazines. ☐ To make people think about eating. ☐ To create a demand for special brands. 16. Why is harness put on horses? ☐ So that their strength may be utilized. ☐ So that their beauty will be recognized. ☐ To match the colour of the carriage. ☐ To keep them warm. 17. Why do people put food in refrigerators? ☐ To get it out of the way. ☐ The low temperature keeps it fresh. ☐ To help ice men make a living. ☐ Because the law requires it. 18. Why are fire escapes more frequently put on tall buildings than on one-story buildings? ☐ A tall building is more likely to burn down. ☐ They would spoil the looks of a low building. ☐ Low buildings have fire extinguishers. ☐ One could jump from one-story buildings. 19. What should one do with a baby when it cries? ☐ Discover and remove the cause of its crying. ☐ Spank it and put it to bed. ☐ Get it a drink of water and rock its cradle. ☐ Give it a bottle of milk or sing to it. 20. Why is country air considered more healthful than city air? ☐ It has fewer impurities in it. ☐ Trees and grass grow in the country. ☐ More people die in the city. ☐ The wind is stronger in the country. 21. Why do railroads use electric engines in some cities? ☐ They run faster than steam engines. ☐ They look better than steam engines. ☐ To avoid making the city smoky. ☐ In order to make less noise. 22. What is the main purpose of lightning rods? ☐ To decorate the roof of the house. ☐ To make the lightning strike somewhere else. ☐ To show which way the wind blows. ☐ To remove the electricity from the air. 23. What is the safest altitude and speed for flying in an airplane? ☐ Low and slowly. ☐ Low and rapidly. ☐ High and rapidly. ☐ High and slowly. 24. What is the chief purpose of newspaper headlines? ☐ To make the paper attractive. ☐ To show what actually happened. ☐ To help one decide where to read. ☐ To guide public opinion wisely. _Directions for Scoring the Test._