Pettibone's economy of fuel

or, Description of his improvements of the rarefying air-stoves, grates, tubes, pipes, cylinders, or open stoves, or common fire places, made of iron, stone, brick, potter's clay, for warming and ventilating hospitals, churches, colleges, courts of justice, dwelling houses, hot or green houses, ovens, drying rooms, gun-powder, or other manufactories, banking-houses, barracks, ships, malt kilns, & c. & c., with or without the application of steam. For which letters patent have been obtained from the government of the United States of America.

by Daniel Pettibone