These were neither race-horses nor stage-coaches, but rival types of the newly invented steam locomotive. To win the £500 prize offered, the successful engine, if weighing six tons, must be able to draw a load of twenty tons at ten miles an hour, and to cover at least seventy miles a day. Little wonder that an eminent Liverpool merchant declared that only a parcel of charlatans could have devised such a test, and wagered that if a locomotive ever went ten miles an hour, he would eat a stewed engine-wheel for breakfast!