. Electric railway journal . year. Although verylittle change was made in the rates of fare after electric opera-tion was begun the whole of the traffic which had been lost wasregained inside of twelve months and the number of passen-gers carried is steadily increasing. All of the work of converting the South London line and themore recent extensions to Crystal Palace was carried out underthe supervision of Philip Dawson, consulting electrical names of the principal contractors for the equipment werepublished on page 582 of the isssue of this paper for April1, 1911. 788 ELECTRIC R
. Electric railway journal . year. Although verylittle change was made in the rates of fare after electric opera-tion was begun the whole of the traffic which had been lost wasregained inside of twelve months and the number of passen-gers carried is steadily increasing. All of the work of converting the South London line and themore recent extensions to Crystal Palace was carried out underthe supervision of Philip Dawson, consulting electrical names of the principal contractors for the equipment werepublished on page 582 of the isssue of this paper for April1, 1911. 788 ELECTRIC RAILWAY JOURNAL. [Vol. XXXVII. No. 18. ELECTRIFICATION OF THE KIRUNA-RIKSGRANSEN LINEOF THE SWEDISH RAILWAYS The railway administration of Sweden is now buying $i,-900,000 of coal a year while private railway companies arebuying English coal to the same amount. Sweden itself hasno coal deposits with the exception of the mines at Hoganasin the southern part. The output is so small compared to 1 □□ 0 0 0 0 It LB @ 0, i w a. Electric Freight Locomotive Proposed for Swedish PolarZone Railway the consumption that the mines supply but approximately 5per cent of the total amount consumed. In view of the nu-merous waterfalls available for supplying electric energy theSwedish Parliament appointed a commission in 1902 to investi-gate the matter of railway electrification. From 1905 to 1907 tests were made upon the stretches Tomte-boda-Vartan and Stockholm-Jarfva. As the result of thesetrials the commission concluded to adopt a single-phase systemof 15 cycles as the most feasible for the conditions. The nextstep was to choose the line first to be electrified. The com-mittee concluded that it would be desirable to select one witha practically constant schedule, heavy haulage and adjacent toa waterfall so that the energy could be supplied with a mini-mum length of feeders. The Kiruna-Riksgransen line satis-fied these conditions. This section is within the polar circleand has the distinct
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