"Bitzer," said Thomas Gradgrind. "Your definition of a horse." "Quadruped. Graminivorous. Forty teeth, namely twenty-four grinders, four eye-teeth, and twelve incisive. Sheds coat in the spring; in marshy countries, sheds hoofs, too. Hoofs hard, but requiring to be shod with iron. Age known by marks in mouth."

Hard Times, Book I, Chapter II (p. 208)