A philosophical estimate of the causes, effects and cure of unwholesome air in large cities. With a ... mode of supplying with perpetual warm, or cool fresh air, churches ... hospitals, ships, houses ... sick rooms, etc. To which is prefixed, a philosophical dissertation on the causes and cure of smoking chimnies A philosophical estimate of the causes, effects and cure of unwholesome air in large cities. With a ... mode of supplying with perpetual warm, or cool fresh air, churches ... hospitals, ships, houses ... sick rooms, etc. To which is prefixed, a philosophical dissertation on the causes and cure of smoking chimnies