Good news for the poor, or an expedient humbly offered for supplying the want and bringing down the price of coles [electronic resource] : Discovering a new invention for maintaining good fires at an easy charge, notwithstanding the present war, or any the like exigency. With the exact way and charge of doing the same as it hath been already emperimented in the city of London, with excellent success. Of special advantage to all professions, whose imploys require the constant use of large fires.