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 to wear glasses. You can injure good eyes in several ways. You must not read very fine print long, or read by a dim light. The light should fall on the page or the work you are doing, not in your eyes. And it should not dazzle. If your eyes feel tired, rest them by bathing them in cold water, and closing them awhile.

Do not try to "doctor" yourself. Good mothers know a great many things to help little boys and girls over small troubles. But if the trouble is something she doesn’t understand, it is best to see a doctor. Don't take patent medicines. If you are so ill that you need medicine you don't know the kind you need, nor how any kind will affect you. And a great many patent medicines have alcohol and dangerous drugs in them.