HOW TO INSTALL Electric Bells, Annunciators, and Alarms.
Reading edition
INCLUDING
Batteries, Wires and Wiring, Circuits, Pushes, Bells, Burglar Alarms, High and Low Water Alarms, Fire Alarms, Thermostats, Annunciators, and the Location and Remedying of Troubles.
By NORMAN H. SCHNEIDER. 59 Illustrations and 63 pages of Text.

No. 3.—The S. & C. Series. Price 1/6 net.