Pyrometers.
For showing heat of Ovens, Hot Blast Pipes, Boiler Flues Superheated Steam, Oil Stills, etc.
HENRY W. BULKLEY, Sole Manufacturer, 149 Broadway, N.Y.
WM. A. HARRIS
PROVIDENCE, R. J. (PARK STREET),
Six minutes walk West from station.
Original and Only builder of the