Sentence Examples


  • - The state's great mineral wealth is in coals of various kinds, petroleum, and natural gas.
  • The price of coals at Darlington fell from 18s.
  • Outside the customs union (Zollverein), the imports being principally coals, bricks and timber, and the exports fish.
  • Coals vary much in calorific value, some producing only 12,000 B.Th.U.
  • They yield valuable coals, clays, marls and ganister.