For an hour the teacher had dealt with painful iteration on the part
played by carbohydrates, proteids, and fats, respectively, in the
upkeep of the human body. At the end of the lesson the usual test
questions were put, among them: "Can any girl tell me the three foods
required to keep the body in health?" There was silence till one maiden
held up her hand and replied: "Yer breakfast, yer dinner, and yer
supper."