The Pulsometer, or Magic Pump (steam pump)

New York, New York: C. Henry Hall & Co, 1873. Near-fine. A couple short tears, toning.. Illustrated circular advertising the Pulsometer, or Magic Pump, a "new and useful invention now being extensively and rapidly introduced for pumping water and other liquids" in mines, factories, railroads, docks, gas yards, and wells. Includes a diagram of the invention with an extensive description of the mechanism and its possible applications. Price list with sizing, weight, gallon per minutes information. Made of "Lead for Acids, Bronze for Sugar Works, Brass or Composition for special purposes". Printed bifolium (10" by 8").