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it. The party having assembled around this new generator of 

 force, Mr. Traill briefly and clearly explained its working ; 

 after which the steam was turned on the engine, setting the 

 wonderfully smooth running dynamo in motion at a speed of 

 about 600 revolutions per minute. The cable transmitting the 

 electric current was then traced from the building, underground 

 to the electric rail outside. To the uninitiated viewing the 

 front of the works this rail might easily be mistaken for a 

 simple guard to protect the tramline from trespass, as it rests 

 upon supports about eighteen inches from the ground ; its 

 position along the roadside would, however, be rather puzzling, 

 situated as it is between the inner rail and the bottom of the 

 hedge bank. The connection between the cable and this rail 

 was pointed out, and it was shown that on the dynamo being 

 set in motion a most powerful current was established through- 

 out its length. The electric car was ready in position for the 

 party. Before entering, however, the method by which this 

 electric current was transmitted as rotatory motion to its wheels 

 was explained. Hidden below its floor, and carefully boxed in, 

 is a second dynamo machine, similar in construction to that in 

 the depot, but mounted to suit the altered and necessarily con- 

 tracted position it occupies. In contact with this hidden 

 dynamo are two steel arms, which project from that side of the 

 car next the insulated electric rail ; these terminate in carriage- 

 spring-like contrivances called brushes, which rest lightly on 

 the flat top of the electric rail, thus completing the current 

 between the two dynamos, and setting up a sympathetic motion 

 in the one under the car, the detail in conveying which to the 

 carriage wheels remains simply a question of mechanics. The 

 car itself is open and admirably suited for excursion parties, 

 afl"ording, as it does, an uninterrupted view. With a load of 

 twenty-three persons the current was made, sparks were ob- 

 served playing about the brushes, and off" the car glides with a 

 steady, pleasant motion — no soot flights from locomotive funnel 

 to distract attention, nor over-worked horses to evoke sympathy 

 from the passenger and mar his pleasure. A slight hissing, 



