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o,' TSeasy for you to know the cost of the eggs and -the milk and the flour that go into a cake. But how aotte gas you use when you bake it "'for 25 minutes i a moderate (375.0 F.) oven"? We've- figured that out. To pre-heat the oven -for 20 min- utesl, to keep it at ýthe required temperature for 25 minutes more, uses less than 3 cents', wotth of gas in the average northern Illinois home. Or less than you pay for the eggs agree that it's quite PUBIC ERVCE OMPYF NORTIIER,ýN ,ILLINOIS and 'tare S ERVICE COMPA-NY 1 LA C