Dry measures are units of volume use to measure bulk commodities which are not liquid. They are typically used in agriculture, agronomy, and commodity markets to measure grain, dried beans, and dried and fresh fruit (e.g. a peck of apples is a retail unit); formerly also salt pork and fish. They are also used in fishing for clams, crabs, etc. and formerly for many other substances (e.g. coal, cement, lime) which were typically shipped and delivered in a standardized container such as a barrel.