500
THE POPULAR SCIENCE MONTHLY.
connection that could be used on any convenient electric railroad wire. In 1888, or thereabout, Mr. S. S. Wheeler, of New York, designed an electric engine which was constructed by placing a
Fig. 12.—Electric Fire Engine.
Sprague electric motor, directly attached to a Silsby rotary pump, on a Silsby crane-neck steam fire-engine truck. Several hundred feet of insulated wire were carried to be attached to electric connections. This engine is now the property of the Crocker--
