Fig. 7.
Fig. 8.
The graphic diagram, [Fig. 8], demonstrates what the relative cost would be with each of the three conditions just named.
Mr. Goulard’s first practical application of the secondary generator in this country was the lighting of the Underground Railway Stations, in 1883, from Edgware Road to High Street, the generating dynamo being fixed at the former place. These experiments, which were made by Mr. Kenneth Mackenzie, attracted considerable attention at the time, but it was not until the report of the jurors to the Turin International Exhibition in 1885 was published that companies were formed to instal the Goulard system for lighting an extensive district.
