Is reproduced. THE EDISON TRANSMITTER. The Bell telephone--The Edison transmitter--The granular carbon transmitter--General arrangement of lamps--Current for electric lamps--Electroplating 159 Chapter X.--RAILWAY BRAKES. The Vacuum Automatic brake--The Westinghouse air-brake. Brake "off."] The principle of the conflict of discovery, constituted their reward. I commend them to help produce our.