HIGH SPEED RAILWAY CONSTRUCTION AND WORKING. XLVII. 



The Brussels to Antwerp express line, which has been 

 approved by the Belgian Government, is also on the Behr 

 mono-rail system, but it is at present in abeyance, owing I 

 believe, to want of financial support. 



Another type of mono-rail electric railway for fast traffic, 

 invented to keep the car on the road on sharp curves, is 

 that called the Boynton bicycle road. It has been sucess- 

 fully experimented on in Long Island, New York. This 

 has one rail at ground level, and a horizontal double-headed 

 one in same plane above the car, supported by posts and 

 brackets. Against this upper double-headed rail, two sets 

 of horizontal flangeless wheels mounted on top of the car 

 press, the weight of the car, of course being taken, by 

 means of double flanged central wheels, set tandem fashion, 

 by the central rail below. The upper rail serves as feeder 

 and lower one as the return. It would appear as if this 

 would have less objectionable features than the Behr system, 

 but the gauge between upper and lower rail would have to 

 be very carefully maintained, or the car would slip out 

 between them. 



The Berlin Sozzen line is an existing one of 4 ft. 8|- in. 

 gauge, of about 20 miles in length, nearly straight, which 

 has been specially strengthened for experimental purposes. 

 This has been ordered by the Emperor of Germany who is 

 a good mechanic and electrician himself, as I was told by 

 one of the leading engineers in Berlin in connexion with 

 this project. One hundred and forty miles per hour is 

 aimed at in these experiments, which had not come off 

 when I was in Berlin last year, but I understand that 105 

 has been since attained. The Allgemeine Blekricit'ats 

 Geseilschaft are supplying, from one of their central 

 stations, triphase currents of 10,000 to 12,000 volts in 75 

 periods, while Messrs. Siemens and Halske have constructed 

 the overhead feeders. There are three wires one mitre 



